WO2021070677A1 - 半導体製造装置およびそれを用いた半導体装置の製造方法ならびに半導体装置 - Google Patents
半導体製造装置およびそれを用いた半導体装置の製造方法ならびに半導体装置 Download PDFInfo
- Publication number
- WO2021070677A1 WO2021070677A1 PCT/JP2020/036886 JP2020036886W WO2021070677A1 WO 2021070677 A1 WO2021070677 A1 WO 2021070677A1 JP 2020036886 W JP2020036886 W JP 2020036886W WO 2021070677 A1 WO2021070677 A1 WO 2021070677A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mold
- sealing material
- resin
- cavity
- reservoir
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49575—Assemblies of semiconductor devices on lead frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
- B29C45/14655—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components connected to or mounted on a carrier, e.g. lead frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2608—Mould seals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the groups H01L21/18 - H01L21/326 or H10D48/04 - H10D48/07 e.g. sealing of a cap to a base of a container
- H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
- H01L21/561—Batch processing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the groups H01L21/18 - H01L21/326 or H10D48/04 - H10D48/07 e.g. sealing of a cap to a base of a container
- H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
- H01L21/565—Moulds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67126—Apparatus for sealing, encapsulating, glassing, decapsulating or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
- H01L23/293—Organic, e.g. plastic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
- H01L23/3142—Sealing arrangements between parts, e.g. adhesion promotors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
- H01L23/315—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed the encapsulation having a cavity
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49541—Geometry of the lead-frame
- H01L23/49562—Geometry of the lead-frame for individual devices of subclass H10D
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49861—Lead-frames fixed on or encapsulated in insulating substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups H01L21/18 - H01L21/326 or H10D48/04 - H10D48/07
- H01L21/4814—Conductive parts
- H01L21/4821—Flat leads, e.g. lead frames with or without insulating supports
- H01L21/4839—Assembly of a flat lead with an insulating support, e.g. for TAB
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32245—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45117—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 400°C and less than 950°C
- H01L2224/45124—Aluminium (Al) as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45139—Silver (Ag) as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45144—Gold (Au) as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45147—Copper (Cu) as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/48137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48257—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a die pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4912—Layout
- H01L2224/49171—Fan-out arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49503—Lead-frames or other flat leads characterised by the die pad
- H01L23/49513—Lead-frames or other flat leads characterised by the die pad having bonding material between chip and die pad
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49541—Geometry of the lead-frame
- H01L23/49548—Cross section geometry
- H01L23/49551—Cross section geometry characterised by bent parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49568—Lead-frames or other flat leads specifically adapted to facilitate heat dissipation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L24/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L24/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L24/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L24/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L24/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/73—Means for bonding being of different types provided for in two or more of groups H01L24/10, H01L24/18, H01L24/26, H01L24/34, H01L24/42, H01L24/50, H01L24/63, H01L24/71
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/93—Batch processes
- H01L24/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L24/97—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips the devices being connected to a common substrate, e.g. interposer, said common substrate being separable into individual assemblies after connecting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/14—Integrated circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
- H01L2924/1811—Structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
- H01L2924/182—Disposition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
- H01L2924/183—Connection portion, e.g. seal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
- H01L2924/186—Material
Definitions
- the present disclosure relates to a semiconductor manufacturing apparatus, a method for manufacturing a semiconductor apparatus using the same, and a semiconductor apparatus.
- Power semiconductor devices are becoming widespread in all products, from industrial equipment to home appliances and information terminals. There is a particular need for miniaturization of modules installed in home appliances. Power semiconductor devices generate a large amount of heat because they handle high voltage and large current, and in order to energize a current with a fixed capacity, it is necessary to efficiently dissipate heat to the outside and maintain electrical insulation from the outside. There is.
- a lead frame including a die pad on which a power semiconductor element or the like is mounted is sealed with a sealing material together with the power semiconductor element or the like.
- the transfer molding method is applied.
- a lead frame is arranged in a mold mold, and a power semiconductor element or the like is sealed by injecting a sealing material into the mold mold.
- the thickness of the sealing material covering the side opposite to the side on which the power semiconductor element is mounted is the thickness of the sealing material covering the side on which the power semiconductor element is mounted. It is arranged so that it is thinner than the thickness of.
- the distance (height) of the lower region from the side of the die pad opposite to the side on which the power semiconductor element is mounted to the lower mold (bottom surface of the cavity) is , It is shorter than the distance (height) of the upper region from the side of the die pad on which the power semiconductor element is mounted to the upper mold (upper surface of the cavity).
- Voids may remain in the encapsulant. If the voids remain, the electrical insulation of the encapsulant may decrease, and the reliability of the power semiconductor device may decrease, and countermeasures have been taken (for example, Patent Document 1).
- the present disclosure has been made in view of such a situation, and one object is to provide a semiconductor manufacturing apparatus for suppressing voids from remaining in a sealing material, and another object is to provide a semiconductor manufacturing apparatus. It is to provide a method of manufacturing a semiconductor device to which such a semiconductor manufacturing device is applied, and yet another object is to provide a semiconductor device manufactured by such a manufacturing method.
- a cavity extending in the first direction is formed by a mold including a lower mold and an upper mold, and a lead frame on which a semiconductor element is mounted is arranged in the cavity.
- a semiconductor manufacturing device that seals a lead frame together with a semiconductor element by injecting a sealing material into the semiconductor, and is a sealing material injection gate portion, one or more sealing material reservoirs, and a sealing material reservoir gate portion. And have.
- the sealing material injection gate portion injects the sealing material toward the cavity.
- One or more sealing material reservoirs are provided on the other side separated from one side where the sealing material injection gate portion is arranged with the cavity in the first direction, and the sealing material flows through the cavity. Collect the stop material.
- the sealing material storage gate portion communicates between the cavity and the sealing material storage portion.
- the sealing material injection gate portion has a first opening cross-sectional area.
- the sealing material storage gate portion has a second opening cross-sectional area. The second opening cross-sectional area is smaller than the first opening cross-sectional area.
- the method for manufacturing a semiconductor device includes the following steps. Prepare a lead frame. A semiconductor element is mounted on the lead frame. A mold mold including a lower mold and an upper mold, in which a cavity is formed by the lower mold and the upper mold, is prepared. A lead frame on which a semiconductor element is mounted is arranged in a mold. Inject the encapsulant into the cavity. Remove the mold mold.
- the step of preparing the mold mold includes a step of preparing a mold mold including a sealing material injection gate portion, one or more sealing material storage portions, and a sealing material storage gate portion. The sealing material injection gate portion injects the sealing material toward the cavity.
- One or more encapsulant reservoirs are provided on the second side opposite to the first side on which the encapsulant injection gate is arranged with the cavity in between, and accumulate the encapsulant flowing through the cavity.
- the sealing material storage gate portion communicates between the cavity and the sealing material storage portion.
- the step of injecting the sealing material into the cavity includes a step of injecting the sealing material until the sealing material filled in the cavity flows into the sealing material reservoir.
- the semiconductor device includes a lead terminal, a die pad, a semiconductor element, and a sealing material.
- the die pad is connected to the lead terminal.
- the semiconductor element is mounted on the die pad.
- the sealing material seals the die pad and the semiconductor element in such a manner that a part of the lead terminal is exposed.
- the encapsulant has a first side portion and a second side portion facing each other at a distance in the first direction. There is a first sealing material mark on the first side portion. There is one or more second encapsulant marks on the second side.
- the mold mold includes a sealing material injection gate portion, one or more sealing material storage portions, and a sealing material storage gate portion. As a result, it is possible to prevent voids from remaining in the encapsulant injected into the cavity.
- a mold having a sealing material injection gate portion, one or more sealing material storage portions, and a sealing material storage gate portion is used for sealing. It is possible to prevent voids from remaining in the stop material.
- the semiconductor device by using the semiconductor manufacturing device provided with the above-mentioned mold, voids remaining in the encapsulant are suppressed and electrical insulation is improved.
- FIG. 5 is a cross-sectional view showing a mold mold provided with a lower mold and an upper mold in the same embodiment.
- it is a partially enlarged cross-sectional perspective view which shows the resin injection gate part in a mold mold.
- it is the first partially enlarged sectional perspective view which shows the resin storage gate part in the mold mold.
- it is the 2nd partial enlarged cross-sectional perspective view which shows the resin storage gate part in the mold mold.
- it is a partially enlarged sectional view which shows the resin storage gate part in a mold mold.
- FIG. 28 it is a top view which shows the structure of the lower mold in the mold mold which concerns on 2nd modification. It is a top view which shows one step of the manufacturing method of the semiconductor device using the mold mold shown in FIG. 28 in the same embodiment.
- sectional drawing which shows one step of the manufacturing method of the semiconductor device using the mold mold which concerns on 3rd modification.
- it is a partially enlarged sectional view which shows the resin storage gate part in the mold mold which concerns on 4th modification.
- it is a partial cross-sectional view of the cross-sectional line XXXIII-XXXIII shown in FIG.
- FIG. 37 It is a top view which shows the structure of the lower mold in the mold mold which concerns on Embodiment 2.
- FIG. It is a top view which shows one step of the manufacturing method of the semiconductor device using the mold mold shown in FIG. 34 in the same embodiment.
- FIG. 5 is a plan view showing another example of the appearance of the semiconductor device in each embodiment.
- FIG. 5 is a plan view showing still another example of the appearance of the semiconductor device in each embodiment.
- FIG. 5 is a partially enlarged cross-sectional view showing a resin reservoir gate portion in the mold mold according to the fourth embodiment.
- it is a 1st side view including a partial cross section which shows the state which the semiconductor device formed by the mold mold is mounted on an electronic circuit board.
- it is a second side view including a partial cross section which shows the state which the semiconductor device formed by the mold mold is mounted on an electronic circuit board.
- It is a top view which shows the structure of the lower mold in the mold mold which concerns on embodiment 5. It is a top view which shows one step of the manufacturing method of the semiconductor device using the mold mold shown in FIG. 50 in the same embodiment.
- Embodiment 1 The semiconductor device, the semiconductor manufacturing device, and the like according to the first embodiment will be described.
- the semiconductor device manufactured by the semiconductor manufacturing device will be described.
- the semiconductor device 1 as a power semiconductor device the power semiconductor element 21 and the IC element 29 as semiconductor elements are mounted on the lead frame 45, respectively.
- the lead frame 45 is sealed with a mold resin 33 as a sealing material together with the power semiconductor element 21 and the like.
- the mold resin 33 has a first side portion 33a, a second side portion 33b, a third side portion 33c, a fourth side portion 33d, a first main surface 33e, and a second main surface 33f.
- the first side portion 33a and the second side portion 33b face each other with a distance in the X-axis direction and extend in the Y-axis direction, respectively.
- the third side portion 33c and the fourth side portion 33d face each other with a distance in the Y-axis direction and extend in the X-axis direction, respectively.
- the first main surface 33e and the second main surface 33f face each other with a distance in the Z-axis direction.
- the first side portion 33a has a resin injection mark 34a as a first sealing material mark.
- the resin injection mark 34a is a resin mark that remains at a position corresponding to the resin injection gate portion for injecting the mold resin (fluid resin).
- the second side portion 33b has a resin reservoir mark 34b as a second sealing material mark.
- the resin reservoir mark 34b is a resin mark that remains at a position corresponding to the resin reservoir gate portion.
- the resin reservoir mark 34b is located at a position on the second side portion facing the resin injection mark 34a in the X-axis direction.
- the area of the resin reservoir mark 34b is smaller than the area of the resin injection mark 34a.
- FIG. 1 shows a convex resin mark 34 protruding from the surface of the mold resin 33.
- a concave resin mark 34 recessed from the surface of the mold resin 33 may be formed depending on how the mold resin 33 is removed from the mold.
- a concave resin injection mark 34a remains on the first side portion 33a.
- a concave resin reservoir mark 34b remains on the second side portion 33b.
- a concave resin injection mark 34a may remain on the first side portion 33a
- a convex resin reservoir mark 34b may remain on the second side portion 33b.
- a convex resin injection mark 34a remains and a concave resin reservoir mark 34b remains (not shown).
- the lead frame 45 includes a power lead terminal 5, a power lead 3, a lead step portion 7, a large die pad 9, a small die pad 15 (15a, 15b, 15c), an IC lead 23, an IC lead terminal 25, and the like.
- the small die pad 15 includes three small die pads 15a, 15b and 15c.
- the large die pad 9 or the like on which the power semiconductor element 21 is mounted is arranged at a position lower than the position (height) of the power lead 3 in the Z-axis direction.
- the large die pad 9 and the like are arranged on the first main surface 11e side of the mold resin 33 with respect to the position of the power lead 3 in the Z-axis direction.
- the distance from the large die pad 9 to the first main surface 11e is defined as the distance L1.
- the distance from the large die pad 9 to the second main surface 11f is defined as the distance L2.
- the distance L1 is shorter than the distance L2. That is, the thickness of the portion of the mold resin 33 that covers the side (first surface) of the large die pad 9 opposite to the side on which the power semiconductor element 21 is mounted is such that the power semiconductor element 21 of the large die pad 9 is mounted. It is thinner than the thickness of the portion of the mold resin 33 that covers the side (second surface).
- the mold mold is provided with a resin reservoir gate portion and a resin reservoir portion so as not to generate voids in the portion of the mold resin 33 that covers the first surface of the large die pad 9.
- three power semiconductor elements 21 are mounted on the large die pad 9. Each of the three power semiconductor elements 21 is bonded to the large die pad 9 by the conductive adhesive 19. For example, one power semiconductor element 21 is mounted on each of the small die pads 15a, 15b, and 15c. One power semiconductor element 21 is bonded to each of the small die pads 15a, 15b, and 15c by a conductive adhesive (not shown).
- the power semiconductor element 21 is, for example, an IGBT (Insulated Gate Bipolar Transistor) or a MOSFET (Metal Oxide Semiconductor Field Effect Transistor) or the like.
- the large die pad 9 is connected to the power lead 3 via the lead step portion 7.
- Each of the small die pads 15a, 15b, 15c has a bent portion 13.
- the bent portion 13 has an X-direction component and a Y-direction component and extends obliquely.
- the X coordinate value of the tip 17a of the small die pad 15a is larger than the X coordinate value of the end portion 11a of the lead step portion 7. It is desirable that the X-coordinate value of the tip 17b of the small die pad 15b is larger than the X-coordinate value of the end portion 11b of the lead step portion 7. It is desirable that the X-coordinate value of the tip 17c of the small die pad 15c is larger than the X-coordinate value of the end portion 11c of the lead step portion 7.
- the large die pad 9 is mounted with the three power semiconductor elements 21 and the three small die pads 15a are mounted.
- 15b and 15c can each be equipped with one power semiconductor element 21.
- the power semiconductor element 21 can be efficiently arranged within the limited volume in the semiconductor device 1, which can contribute to the miniaturization of the semiconductor device 1.
- Each of the small die pads 15a, 15b, and 15c is connected to the power lead 3 via the bent portion 13 of the small die pad 15 and the lead stepped portion 7.
- the power lead 3 is connected to the power lead terminal 5.
- the power lead terminal 5 projects outward from the third side portion 33c of the mold resin 33.
- IC elements 29 are mounted on the IC lead 23.
- Each of the two IC elements 29 is bonded to the IC lead 23 by a conductive adhesive 27.
- the IC lead 23 is connected to the IC lead terminal 25.
- the IC lead terminal 25 projects outward from the fourth side portion 33d of the mold resin 33.
- the corresponding power semiconductor element 21 and the IC element 29 are electrically connected by a wire 31.
- the corresponding power semiconductor element 21 and the power lead 3 are electrically connected by a wire 31.
- the corresponding IC element 29 and the IC lead 23 are electrically connected by a wire 31.
- the wire 31 is formed of, for example, a metal such as gold, silver, copper or aluminum. In this way, an electric circuit is formed on the lead frame 45.
- the material or thickness of the wire 31 may be appropriately changed depending on the portion to be connected. Further, the portion to which the wire 31 is connected may be subjected to a treatment such as a coating for increasing the bonding force of the wire 31.
- the semiconductor device 1 a structure in which the power lead terminal 5 and the IC lead terminal 25 protrude from the mold resin 33 is given as an example.
- the semiconductor device 1 may have a structure in which the power lead terminal 5 and the IC lead terminal 25 are exposed on the surface of the mold resin 33 so as not to protrude from the mold resin 33.
- the lead step portion 7 connected to the large die pad 9 has two stages of the lead step portion 7a and the lead step portion 7b.
- the position of the power lead terminal 5 in the height direction is in the height direction of the large die pad 9. It may be the same position as the position.
- the case where the voltage applied to the power lead terminal 5 is relatively low is, for example, the case of 24V or the like. In this case, the step of forming the lead step portion 7 on the lead frame becomes unnecessary, which can contribute to the reduction of the production cost.
- the mold mold has a plurality of cavities into which the mold resin is injected.
- the cavity for example, there is a mold mold provided with a first cavity and a second cavity. The first cavity and the second cavity are connected by a runner. The mold resin injected into the first cavity is injected into the second cavity via the runner. A part of the molded resin injected into the second cavity flows into the resin reservoir through the resin reservoir gate.
- resin marks caused by the resin injection gate portion and resin marks caused by the runner are left.
- the resin injection mark 34a is left as the resin mark 34 caused by the resin injection gate portion.
- the runner mark 34c is left as the resin mark 34 caused by the runner.
- the area of the resin injection mark 34a and the area of the runner mark 34c are substantially the same.
- Resin marks caused by the runner and resin marks caused by the resin reservoir gate are left on the surface of the semiconductor device sealed with the mold resin injected into the second cavity. As shown in FIG. 1, the resin injection mark 34a is left as the resin mark 34 caused by the runner mark. As the resin mark 34 caused by the resin storage gate portion, the resin storage mark 34b is left.
- the runner mark 34c By injecting the mold resin into the second cavity from the runner, the runner mark 34c can be regarded as the resin injection mark 34a.
- the area of the resin reservoir mark 34b is smaller than the area of the runner mark 34c (resin injection mark 34a).
- the mold mold 51 has a lower mold 53 and an upper mold 55.
- a cavity 52 is formed in the mold mold 51.
- the cavity 52 extends in the X-axis direction as the first direction.
- the cavity 52 includes, for example, a first cavity 52a and a second cavity 52b.
- the mold mold 51 is formed with a resin injection gate portion 59 for injecting the mold resin into the first cavity 52a.
- the mold mold 51 is formed with a runner 61 that communicates between the first cavity 52a and the second cavity 52b. The mold resin injected into the first cavity 52a is injected into the second cavity 52b via the runner 61.
- the mold mold 51 is formed with a resin reservoir 63 into which a part of the fluid resin to be the mold resin injected into the second cavity 52b flows.
- the mold mold 51 is formed with a resin reservoir gate portion 65 that communicates the second cavity 52b and the resin reservoir portion 63.
- the resin reservoir 63 and the resin reservoir gate 65 are formed in, for example, the lower mold 53.
- the resin reservoir 63 is arranged on the other side separated from the one side on which the resin injection gate portion 59 is arranged with the cavity 52 interposed therebetween.
- the resin reservoir gate portion 65 includes an inclined portion 67 and a movable pin 69 as a shutter portion.
- the movable pin 69 is movable in the vertical direction (Z-axis direction).
- the opening cross-sectional area (for example, width LY2 ⁇ height LZ2) as the second opening cross-sectional area of the portion of the resin reservoir gate portion 65 where the inclined portion 67 is located is the resin injection gate portion. It is set to be smaller than the opening cross-sectional area (for example, width LY1 ⁇ height LZ1) as the first opening cross-sectional area of 59.
- the tip portion of the movable pin 69 is at the same position as the surface of the lower mold 53.
- the movable pin 69 is movable in a manner of projecting in the height direction (Z-axis direction) from the state of being housed in the lower mold 53.
- the movable pin 69 is required to be prevented from being worn by moving in the Z-axis direction.
- the movable pin 69 is required to function as a shutter portion for preventing the mold resin from flowing. Therefore, it is desirable that the tip portion of the movable pin 69 is separated from the frame 37 (lower surface) by, for example, about 50 ⁇ m in the protruding state.
- FIG. 10 in a state where the frame 37 in the lead frame is sandwiched between the lower mold 53 and the upper mold 55, the lower mold 53 (upper surface 53a) and the upper mold (lower surface 55a) are sandwiched between the lower mold 53 and the upper mold 55.
- a mold mold 51 is shown in which a gap corresponding to the thickness of the frame 37 is formed.
- the mold mold 51 is not limited to such a mode, and as shown in FIG. 11, for example, a mold mold 51 having a portion in which the lower mold 53 (upper surface 53a) and the upper mold 55 (lower surface 55a) come into contact with each other.
- the mold mold 51 may be used.
- the inclined portion 67 is inclined so as to descend from the top portion 67a toward the resin reservoir portion 63.
- the opening cross-sectional area (for example, LY3 ⁇ LZ3) as the third opening cross-sectional area immediately before flowing into the resin reservoir 63 of the resin reservoir gate portion 65 is the opening cross-sectional area of the portion of the resin reservoir gate 65 where the inclined portion 67 is located. It is set to be larger than (for example, LY2 ⁇ LZ2). As will be described later, by providing the inclined portion 67, the cured mold resin can be easily released from the lower mold 53.
- the portion 66a having the second opening cross-sectional area (LY2 ⁇ LZ2) corresponds to the first portion of the sealing material storage gate portion.
- the portion 66b having the third opening cross-sectional area (LY3 ⁇ LZ3) corresponds to the second portion of the sealing material storage gate portion.
- the height LZ2 (see FIG. 10) of the portion where the inclined portion 67 is located is preferably about 300 to 500 ⁇ m, for example. It is desirable that the height LZ3 (see FIG. 10) of the resin reservoir gate portion 65 immediately before the mold resin flows into the resin reservoir 63 has a height of about twice the height LZ2, for example. About 600 to 1000 ⁇ m is desirable.
- the movable pin 69 is required to reduce sliding friction with the lower mold 53 when moving in the vertical direction. Therefore, as shown in FIG. 13, the cross-sectional shape (XY plane) of the movable pin 69 is preferably circular or elliptical, for example.
- the diameter D of the movable pin 69 is larger than the width W in the Y direction of the resin reservoir gate portion 65 so that the mold resin does not flow when the movable pin 69 protrudes to the height immediately before the contact with the frame. Also, for example, it is desirable that it is as small as about 30 ⁇ m.
- the distance L18 from the top 67a of the inclined portion 67 to the center of the movable pin 69 in the resin reservoir gate portion 65 is preferably as short as possible so that the movable pin 69 does not overlap with the inclined portion 67.
- the movable pin 69 has a smaller diameter of the movable pin 69 and a circular cross-sectional shape, so that sliding friction can be reduced and the movable pin 69 is damaged. It becomes difficult to do.
- the width LY3 of the resin injection gate portion 59 needs to secure a certain cross-sectional area in order to release the mold resin that has flowed into the resin reservoir 63 from the lower mold 53. For example, about 0.5 to About 1.5 mm is desirable.
- the width W of the resin reservoir gate portion 65 is preferably 500 ⁇ m or more so that the mold resin that has flowed into the resin reservoir 63 does not remain in the lower mold 53.
- the mold resin is suppressed from flowing into the resin reservoir 63, and the mold resin flows into the resin reservoir 63.
- the mold resin can be reliably filled in the cavity 52 while minimizing the amount of resin.
- the volume of the resin reservoir 63 is adjusted by the length L11 (X-axis direction), the length L10 (Y-axis direction), and the length L12 (Z-axis direction).
- the resin reservoir gate portion 65 and the resin reservoir portion 63 are formed in the lower mold 53 .
- the resin reservoir gate portion 65 and the resin reservoir portion 63 may be formed on the upper mold 55.
- the movable pin 69 protrudes from the state of being housed in the upper mold 55 to the position immediately before contacting the frame.
- the lead frame 45 (see FIG. 15) is formed by etching the metal plate or punching the metal plate. A large die pad 9, a small die pad 15, an IC lead 23, and the like are formed on the lead frame 45. Next, the lead step portion 7 (see FIG. 15) is formed by bending the lead frame 50 using a bending die.
- the power semiconductor element 21 is bonded to each of the large die pad 9 and the small die pad 15 with a conductive adhesive (see FIG. 15). Further, the IC element 29 is bonded to the IC lead 23 with a conductive adhesive (see FIG. 15). Next, the wire 31 is connected. In this way, as shown in FIG. 15, a plurality of semiconductor devices including the lead frame 45 on which the power semiconductor element 21 and the like are mounted are formed before being sealed by the mold resin. One semiconductor device (the part on the left side of the lead frame 45) and the other semiconductor device (the part on the right side of the lead frame 45) arranged in the X-axis direction are connected by a tie bar 35.
- the semiconductor device is sealed in the mold resin by the transfer molding method.
- a mold mold 51 including a lower mold 53 and an upper mold 55 is prepared.
- a lead frame 45 (see FIG. 15) on which a power semiconductor element 21 or the like is mounted is arranged between the lower mold 53 and the upper mold 55. It is desirable that the resin injection gate portion 59 is located closer to the large die pad 9 than the small die pad 15 in the lead frame 45.
- the area of the large die pad 9 is larger than the area of the small die pad 15. Therefore, it may be difficult to fill the region between the large die pad 9 and the lower mold 53 (bottom surface of the cavity 52) with the mold resin. Therefore, by arranging the resin injection gate portion 59 near the large die pad 9, the flow of the molded resin in a low viscosity state in the region between the large die pad 9 and the lower mold 53 (bottom surface of the cavity 52). The resin can be reliably filled.
- the position of the resin injection gate portion 59 (Y-axis direction) and the position of the runner 61 (Y-axis direction) are the positions of the large die pad 9. It is desirable that it is closer to the center position (Y-axis direction).
- the position of the resin injection gate portion 59 (Y-axis direction) and the position of the runner 61 (Y-axis direction) are substantially the same.
- the resin reservoir 63 and the second cavity 52b are connected to each other via the resin reservoir gate 65.
- the movable pin 69 is located above, and the resin reservoir gate portion 65 is in a closed state.
- the tablet resin 81 is loaded into the plunger 57.
- the plunger 57 is raised while melting the tablet resin 81, so that the molten fluid resin that becomes the mold resin is released from the resin injection gate portion 59 to the cavity 52. It is injected into (52a). The injected fluid resin is filled in the first cavity 52a and then reaches the runner 61.
- the fluidized resin that has reached the runner 61 flows through the runner 61 and is injected into the second cavity 52b.
- the distance from the large die pad 9 and the small die pad 15 to the upper mold 55 (the upper surface of the second cavity 52b) is larger than the distance from the large die pad 9 and the small die pad 15 to the lower mold 53 (the bottom surface of the second cavity 52b). long.
- the fluidized resin 83 is more likely to flow toward the region RC1 of the cavity 52 above the large die pad 9 and the small die pad 15 than the region RC2 of the cavity 52 below the large die pad 9 and the small die pad 15.
- the fluidized resin 83 that has flowed through the region RC1 finally flows from the region RC1 to the region RC2, and the fluidized resin 83 that has flowed through the region RC2 is at a position 87 below the small die pad 15 (15C) (region 85). ) Will eventually join.
- the air in the cavity 52 is discharged from the air vent 79 provided in the cavity 52.
- the air vent 79 is arranged around the cavity 52.
- the air vent 79 is composed of recesses provided in the upper mold 55 or the lower mold 53, for example, having a depth of about 100 ⁇ m. The air vent 79 will be described in a little more detail later.
- a process that does not leave voids in the fluidized resin 83 is performed.
- the movable pin 69 is lowered to open the resin reservoir gate portion 65.
- the fluidized resin 83 in the second cavity 52b tends to flow into the resin reservoir portion 63 via the resin reservoir gate portion 65.
- the portion of the frame 37 is shown by a chain double-dashed line. Also in the following drawings, the portion of the frame 37 is indicated by a chain double-dashed line as needed.
- the portion of the fluidized resin 83 located in the region 85 below the small die pad 15 (15C) also flows toward the resin reservoir gate portion 65.
- the void is excluded from the region RC2. In this way, the electrical insulation of the mold resin 33 (see FIG. 3 and the like) on the first main surface 33e side can be ensured.
- a process (process) for removing the mold mold 51 is performed. As shown in FIG. 22, the plunger 57 is pushed upward (see arrow). As a result, the mold resin 33 that seals the power semiconductor element 21 and the like is separated from the lower mold 53. At this time, it is assumed that the mold resin 99 that has flowed into the resin reservoir 63 and has been cured does not come off from the lower mold 53.
- the movable pin 69 is also pushed upward (see the arrow).
- the mold resin 99 can be reliably removed from the lower mold 53.
- the mold resin 99 removed from the lower mold 53 is removed from the frame 37 by a mold punch (not shown). Further, the mold resin portion located at the runner and the mold resin portion located at the resin injection gate portion are separated by a mold punch (not shown). In this way, the semiconductor device 1 sealed with the mold resin 33 shown in FIGS. 1 to 3 and the like is manufactured.
- the electrical insulation of the mold resin 33 (see FIG. 3 and the like) on the first main surface 33e side can be ensured. This will be described in comparison with the method for manufacturing a semiconductor device according to a comparative example.
- an air vent 79 is located at a portion of the mold mold 51 facing the runner 61 with the second cavity 52b interposed therebetween.
- the air vent 79 is one of a plurality of air vents arranged around the cavity 52.
- the same members as the mold mold 52 and the like according to the embodiment are designated by the same reference numerals, and the description thereof will not be repeated unless necessary.
- the fluid resin 83 injected from the resin injection gate portion 59 into the first cavity 52a is injected into the second cavity 52b via the runner 61.
- the fluid resin 83 flowing through the region RC1 and the fluid resin 83 flowing through the region RC2 merge in the region 85 (position 87) below the small die pad 15 (15C).
- air is likely to be caught in the fluidized resin 83.
- a plurality of air vents including the air vent 79 are arranged in the mold mold 51, and the air in the fluidized resin 83 is discharged from the air vent.
- the air caught in the fluidized resin 83 is difficult to be discharged.
- the air entrained may not be discharged from the air vent and may remain as voids in the fluidized resin 83. Therefore, in the completed semiconductor device, it is assumed that the remaining voids deteriorate the electrical insulation of the mold resin 33 (see FIG. 3 and the like) on the first main surface 33e side.
- the fluid resin 83 flowing through the region RC1 and the fluidized resin 83 flowing through the region RC2 are in the region 85 (position 87). ),
- the fluidized resin 83 tries to flow from the resin reservoir gate portion 65 into the resin reservoir portion 63.
- the void is excluded from the region RC2.
- the electrical insulation of the mold resin 33 (see FIG. 3 and the like) on the first main surface 33e side can be ensured.
- the molded resin portions located at the resin injection gate portion 59, the runner 61, and the resin reservoir gate portion 65 were separated, as described at the beginning.
- resin marks 34 On the surface of the mold resin 33 of the semiconductor device 1, resin marks 34 (see FIGS. 1 and 6) whose surface roughness is coarser than that of other portions remain.
- a runner mark 34c remains on the first side portion 33a, and a resin reservoir mark 34b remains on the second side portion 33b. Since the cross-sectional area of the runner and the cross-sectional area of the resin injection gate portion are the same and the fluid resin is injected from the runner, the runner mark 34c can be regarded as the resin injection mark 34a.
- the resin injection mark 34a remains on the first side portion 33a and the runner mark 34c remains on the second side portion 33b.
- the area of the resin injection mark 34a and the area of the resin reservoir mark 34b are substantially the same.
- the mold resin 99 removed from the lower mold 53 is removed from the frame 37 and the mold resin 33 serving as the semiconductor device by a mold punch. explained.
- the frame 37 may be provided with a notch 39 as shown in FIG. 25.
- the cutout portion 39 is formed in such a manner that the resin reservoir portion 63 is exposed while the lead frame 45 is arranged in the mold mold 51 (lower mold 53). As a result, when the mold resin 99 is removed from the mold resin 33 by the mold punch, the mold punch can be brought into direct contact with the mold resin 99 to be efficiently removed.
- the tip of the movable pin 69 is separated from the lower surface of the upper mold 55 by about 50 ⁇ m when the resin reservoir gate 65 is closed. It is desirable that it protrudes to the position.
- the resin reservoir gate portion 65 is arranged at the position closest to the resin injection gate portion 59.
- the mold mold 51 in which the position of the resin reservoir gate portion 65 (Y-axis direction) and the position of the runner 61 (resin injection gate portion 59) (Y-axis direction) are the same has been described.
- the resin reservoir gate portion 65 may be arranged at a position (Y-axis direction) away from the position (Y-axis direction) of the runner 61 (resin injection gate portion 59).
- the mold mold 51 (lower metal) in which the resin reservoir gate portion 65 is arranged at a position (Y-axis direction) away from the position of the runner 61 (Y-axis direction) in the positive Y-axis direction (Y-axis direction).
- Type 53 may be applied. In this case, the time required for the fluidized resin 83 injected from the runner 61 to reach the resin reservoir gate portion 65 becomes longer.
- the fluid flows.
- the void is removed from the region 85 (region RC2) until the resin 83 reaches the resin reservoir gate portion 65 and tries to flow into the resin reservoir portion 63.
- the electrical insulation of the mold resin 33 (see FIG. 3 and the like) on the first main surface 33e side can be ensured.
- the volume of the resin reservoir 63 is large.
- the length L11 of the resin reservoir 63 in the X-axis direction is maintained and the length L10 in the Y-axis direction is set long, as shown in FIG. 28. Is desirable.
- the fluid flows. While the resin 83 flows into the resin reservoir 63, the voids are reliably removed from the region 85 (region RC2). As a result, the electrical insulation of the mold resin 33 (see FIG. 3 and the like) on the first main surface 33e side can be reliably ensured.
- the length of the resin reservoir in the Y-axis direction is set in the Y-axis direction. It is desirable to set the length so that it does not exceed the length of the cavities lined up, and to increase the length in the X-axis direction. It is assumed that such a mold mold 51 is used to apply a lead frame 45 (see FIG. 25) including a frame 37 provided with a notch 39. In this case, it is desirable that the length of the resin reservoir 63 in the X-axis direction does not exceed the width of the frame (the length in the X-axis direction).
- the length L11 of the resin reservoir 63 in the X-axis direction exceeds the width of the frame 37.
- the bottom of the resin reservoir 63 is at a position (height) equal to or higher than the bottom surface of the cavity 52.
- the upper mold 55 of the mold mold 51 may also be provided with a resin storage portion 63 in which a region for storing the fluid resin is secured.
- the upper surface of the resin reservoir 63 must be at a position (height) that does not exceed the upper surface of the cavity 52. Is desirable.
- a sufficient volume of the resin reservoir 63 can be secured, and even if voids remain in the fluid resin 83 portion located in the region 85 (see FIG. 18 and the like).
- the voids can be reliably removed from the region 85 while the fluidized resin 83 attempts to flow into the resin reservoir 63.
- the fluidized resin 83 tries to flow from the resin reservoir gate portion 65 into the resin reservoir portion 63, so that the fluidized resin 83 is tentatively located in the region 85. Even if the void remains in the portion, the void will be excluded from the region RC2. As a result, the electrical insulation of the mold resin 33 (see FIG. 3 and the like) on the first main surface 33e side can be ensured.
- the thickness of the mold resin 33 corresponding to the distance L1 (see FIG. 3) from the large die pad 9 to the first main surface 11e is set to about 500 ⁇ m.
- the thickness of the mold resin 33 of the semiconductor device 1 in the Z-axis direction is about 3.5 mm.
- the volume of the resin reservoir 63 is used. Therefore, a volume of about one-third of the volume of the mold resin 33 of the semiconductor device 1 is required.
- the mold mold 51 is provided with a resin reservoir gate portion 65.
- the opening cross-sectional area of the resin reservoir gate portion 65 is smaller than the opening cross-sectional area of the resin injection gate portion 59.
- the resin storage gate portion 65 is provided with a movable pin 69 that controls the flow of the flowing resin into the resin storage portion 63.
- the movable pin 69 may simply have a function of reliably removing the mold resin 99 from the lower mold 53.
- the fluidized resin 83 injected into the first cavity 52a from the resin injection gate portion 59 flows through the runner 61 and is injected into the second cavity 52b.
- the cross-sectional shape of the resin injection gate portion 59 and the cross-sectional shape of the runner 61 are different. , It is desirable that they have the same cross-sectional shape.
- the cross-sectional shape of the resin reservoir gate portion 65 is smaller than the cross-sectional shape of the resin injection gate portion 59 (runner 61).
- the area of the resin injection mark 34a and the area of the runner mark 34c left on the surface of the semiconductor device 1 sealed in the first cavity 52a become substantially the same area (see FIG. 6). ).
- the area of the resin reservoir mark 34b left on the surface of the semiconductor device 1 sealed in the second cavity 52b is smaller than the area of the runner mark 34c (resin injection mark 34a) (see FIG. 1).
- the resin mark 34 including the resin reservoir mark 34b remains on the surface of the semiconductor device 1, and can be easily confirmed from the appearance (mold resin 33) of the semiconductor device 1.
- Air vent in mold mold As described above, while the fluidized resin 83 is gradually filled in the cavity 52, the air in the cavity 52 is discharged from the air vent 79 formed in the mold mold 51 (see FIG. 18). ..
- FIG 32 and 33 show an air vent 79 located near the resin reservoir 63 in the mold mold 51 as an example of the air vent 79.
- the upper mold 55 is provided with an air vent 79a.
- the lower mold 53 is provided with an air vent 79b.
- the air vent 79b communicates with the resin reservoir 63.
- the gap as the air vent 79 In order to efficiently discharge the air in the cavity 52, it is necessary to increase the gap as the air vent 79. However, for example, if the height LZ4 of the gap as the air vent 79a provided in the upper mold 55 is increased, there is a high possibility that the fluid resin leaks excessively. Therefore, by providing the air vent 79b on the lower mold 53 so as to face the air vent 79a in the height direction (Z axis), the height of the gap as the air vent 79 can be secured.
- the resin reservoir 63 since the resin reservoir 63 is provided, the curing of the fluid resin flowing into the resin reservoir 63 is promoted, and the leakage of the fluid resin from the air vent 79b communicating with the resin reservoir 63 is suppressed. Will be done. As a result, the height LZ5 of the gap as the air vent 79b can be increased as compared with the case where the resin reservoir 63 is not provided. As a result, the air in the cavity 52 can be more efficiently discharged to the outside of the mold mold 51.
- the air vent 79a and the air vent 79b are arranged at positions facing each other in the height direction.
- the width LY1 of the air vent 79a and the width LY2 of the air vent 79b may be the same width or different widths from each other. Further, the center position of the air vent 79a in the width direction (Y-axis direction) and the center position of the air vent 79b in the width direction (Y-axis direction) may be the same position or may be offset from each other.
- Embodiment 2 The semiconductor manufacturing apparatus and the like according to the second embodiment will be described.
- a semiconductor manufacturing apparatus or the like to which a mold mold provided with a plurality of resin reservoirs is applied to one cavity will be described.
- the mold mold 51 (lower mold 53) is formed with, for example, a resin reservoir 63a and a resin reservoir 63b as the resin reservoir 63.
- a resin reservoir gate portion 65a that communicates the second cavity 52b and the resin reservoir portion 63a is formed.
- a resin reservoir gate portion 65b that communicates the second cavity 52b and the resin reservoir portion 63b is formed.
- the resin reservoir gate portion 65a is arranged at a position (Y-axis direction) separated from the position of the runner 61 (Y-axis direction) in the positive direction of the Y-axis.
- the resin reservoir gate portion 65b is arranged at a position (Y-axis direction) away from the position of the runner 61 (Y-axis direction) in the negative Y-axis direction. Since the other configurations are the same as the configurations of the mold mold 51 shown in FIGS. 7 and 8, the same members are designated by the same reference numerals, and the description thereof will not be repeated unless necessary. ..
- a plurality of semiconductor devices including a lead frame on which a power semiconductor element or the like is mounted are formed before being sealed with a mold resin.
- the semiconductor device is sealed in the mold resin by the transfer molding method.
- the lead frame 45 on which the power semiconductor element 21 and the like are mounted is arranged in the mold mold 51.
- the fluidized resin 83 is injected into the cavity 52 (52a) from the resin injection gate portion 59.
- the fluidized resin 83 injected into the first cavity 52a flows through the runner 61, is injected into the second cavity 52b, and is gradually filled in the second cavity 52b.
- the fluidized resin 83 that has flowed through the region RC1 finally flows from the region RC1 to the region RC2, and the fluidized resin 83 that has flowed through the region RC2 is below the small die pad 15 (15C). It will eventually merge in region 85 (position 87) (see FIGS. 17 and 19).
- the resin reservoir gate portions 65 (65a, 65b) are opened in the same manner as in the process shown in FIG.
- the resin reservoir gate portions 65 (65a, 65b) are opened, the fluidized resin 83 in the second cavity 52b tends to flow into the resin reservoir portion 63a via the resin reservoir gate portion 65a, or the resin reservoir gate It tries to flow into the resin reservoir 63b via the portion 65b.
- the portion of the fluidized resin 83 located in the region 85 also flows toward the resin reservoir gate portion 65. As a result, even if the void remains in the portion of the fluidized resin 83 located in the region 85, the void is excluded from the region 85.
- each of the resin reservoir gate portions 65 (65a, 65b) is located away from the position of the runner 61 (Y-axis direction) in the Y-axis direction (positive or negative) (Y-axis direction). Is located in. Therefore, as in the case of the mold mold 51 shown in FIG. 26, the time required for the fluidized resin 83 injected from the runner 61 to reach the resin reservoir gate portion 65 becomes longer.
- the lead frame may have positioning holes for the mold. In such a case, it is assumed that the length of the resin reservoir in the Y direction is limited, and the volume of the resin reservoir cannot be sufficiently secured.
- a sufficient volume as the resin reservoir 65 is secured by providing the two resin reservoirs 65a and 65b while avoiding such frame positioning holes (not shown). Can be done. By ensuring a sufficient volume of the resin reservoir 65, even if voids remain in the region 85 (see FIG. 19 and the like), the voids can be reliably eliminated.
- the mold mold 51 it is possible to suppress wear of the mold punch that flows into the resin reservoir 65 and removes the cured mold resin portion.
- the mold mold 51 is formed with two resin reservoirs 65a and 65b as resin reservoirs 65.
- the cross-sectional area of the mold punch that flows into each of the resin reservoirs 65a and 65b and removes the cured mold resin portion can be reduced.
- wear of the die punch can be suppressed as compared with one die punch having a large cross-sectional area, which can contribute to reduction of production cost.
- Embodiment 3 The semiconductor manufacturing apparatus and the like according to the third embodiment will be described.
- a resin reservoir 63a and a resin reservoir 63b are formed as a resin reservoir 63.
- a resin reservoir gate portion 65a that communicates the second cavity 52b and the resin reservoir portion 63a is formed.
- a resin reservoir gate portion 65b that communicates the second cavity 52b and the resin reservoir portion 63b is formed.
- a movable pin as a shutter portion is not arranged in each of the resin reservoir gate portion 65a and the resin reservoir gate portion 65b.
- the lower mold 53 is formed with a projecting portion 93a projecting toward the resin reservoir 63a and a projecting portion 93b projecting toward the resin reservoir 63b.
- the frame 37 is supported from below by the portion of the lower mold 53 including the protruding portions 93a and 93b.
- the length of the resin reservoir 63a where the protrusion 93a is located in the X-axis direction is defined as the length L16a in the Y-axis direction.
- the length of the resin reservoir 63a in which the protrusion 93a is not located in the X-axis direction in the Y-axis direction is defined as the length L15a. It is desirable that the length L16a is shorter than the length L15a.
- the length of the resin reservoir 63b where the protrusion 93b is located in the X-axis direction is defined as the length L16b in the Y-axis direction.
- the length of the resin reservoir 63b in which the protrusion 93b is not located in the X-axis direction in the Y-axis direction is defined as the length L15b. It is desirable that the length L16b is shorter than the length L15b.
- length L15a and the length L15b may have different lengths or may have the same length.
- the length L16a and the length L16b may have different lengths or may have the same length.
- the length of the resin reservoir 63a in which the protrusion 93a is not located in the Y-axis direction is defined as the length L14a in the X-axis direction.
- the length of the resin reservoir 63b in which the protrusion 93b is not located in the Y-axis direction is defined as the length L14b in the X-axis direction. It is desirable that the length L14a and the length L14b be set to a length of about half the width of the frame 37. As a result, a region for pressing the frame 37 can be secured when the molded resin portion that has flowed into the resin reservoir 63 and is cured is removed by the mold punch.
- the resin reservoir gate portion 65a is arranged at a position (Y-axis direction) separated from the position of the runner 61 (Y-axis direction) in the positive direction of the Y-axis.
- the resin reservoir gate portion 65b is arranged at a position (Y-axis direction) away from the position of the runner 61 (Y-axis direction) in the negative Y-axis direction.
- Each of the resin reservoir gate portion 65a and the resin reservoir gate portion 65b is a small die pad 15 (15C) (see FIG. 19 and the like) in which the fluid resin is finally filled when the lead frame is arranged in the mold mold 51. ) Is located as far as possible from the area 85 (position 87) below.
- the resin reservoir gate portion 65a is arranged at a position separated from the portion extending in the X-axis direction (upper portion toward the paper surface) of the second cavity 52b in the negative direction of the Y-axis by about 0.5 to 2.0 mm. Is desirable.
- the resin reservoir gate portion 65b is arranged at a position about 0.5 to 2.0 mm in the positive direction of the Y axis from the portion of the second cavity 52b extending in the X-axis direction (lower portion toward the paper surface). It is desirable to be there. As a result, when the portion of the mold resin that has flowed into the resin reservoir 63 and is cured is removed by the mold punch, it is possible to prevent the mold resin of the semiconductor device from being chipped.
- the length of the resin reservoir gate portion 65a in the Y-axis direction is defined as the width Wa.
- the length of the resin reservoir gate portion 65b in the Y-axis direction is defined as the width Wb.
- the width Wa and the width Wb are preferably, for example, about 0.5 to 1.5 mm so that the molded resin portion that has flowed into the resin reservoir 63 and is cured can easily come off from the lower mold 53.
- each of the resin reservoir gate portion 65a and the resin reservoir gate portion 65b in the Z direction is short.
- the length in the Z direction is preferably, for example, about 0.2 to 0.6 mm so that the portion of the molded resin that has flowed into the resin reservoir 63 and is cured can easily come off from the lower mold 53.
- the length of each of the resin reservoir gate portion 65a and the resin reservoir gate portion 65b in the X-axis direction is defined as the length L17.
- the length L17 is set to an appropriate length in consideration of the opening cross-sectional area of the resin reservoir gate portion 65 and the like.
- the semiconductor device is sealed in the mold resin by the transfer molding method.
- the lead frame 45 on which the power semiconductor element 21 and the like are mounted is arranged in the mold mold 51.
- notches 41a and 41b are formed in the frame 37 of the lead frame 45.
- the cutout portion 41a is formed so as to expose the resin reservoir portion 39a.
- the cutout portion 41b is formed so as to expose the resin reservoir portion 39b.
- the lead frame 45 is provided with the IC lead 23 and the frame 37.
- a hanging lead 43 for connecting is arranged.
- the fluidized resin 83 is injected into the cavity 52 (52a) from the resin injection gate portion 59.
- the fluidized resin 83 injected into the first cavity 52a flows through the runner 61, is injected into the second cavity 52b, and is gradually filled in the second cavity 52b.
- the fluidized resin 83 that has flowed through the region RC1 finally flows from the region RC1 to the region RC2, and the fluidized resin 83 that has flowed through the region RC2 is below the small die pad 15 (15C). It will eventually merge in region 85 (position 87) (see FIGS. 17 and 19).
- the fluidized resin 83 in the second cavity 52b tends to flow into the resin reservoir 63a via the resin reservoir gate 65a, or the resin reservoir It tries to flow into the resin reservoir 63b via the gate 65b.
- the portion of the fluidized resin 83 located in the region 85 also flows toward the resin reservoir gate portion 65. As a result, even if the void remains in the portion of the fluidized resin 83 located in the region 85, the void is excluded from the region RC2.
- each of the resin reservoir gate portions 65 is located away from the position of the runner 61 (Y-axis direction) in the Y-axis direction (positive or negative) (Y-axis direction). Is located in.
- the fluidized resin 83 will flow from the resin reservoir gate portion 65 into the resin reservoir portion 63.
- the void will be excluded from region 85 (position 87).
- the electrical insulation of the first main surface 33e side (see FIG. 3) of the mold resin 33 can be reliably ensured.
- the frame 37 is formed with notches 41a and 41b.
- the cutout portion 41a is formed so as to expose the resin reservoir portion 39a.
- the cutout portion 41b is formed so as to expose the resin reservoir portion 39b.
- the volume of the cutout portions 41a and 41b (the area of the cutout portions 41a and 41b in the XY plane) is used as the volume of the resin reservoir portions 63a and 63b. ⁇ The volume corresponding to the thickness of the frame 37) can be increased.
- the cutout portions 41a and 41b are formed in the frame 37, the cross-sectional area of the portion connected to the air vent (not shown) becomes larger than that in the case where the notch portion is not formed. As a result, more air can be guided to the air vent, the amount of air taken into the fluidized resin can be reduced, and voids can be suppressed from remaining.
- the lower mold 53 is formed with a protruding portion 93a and a protruding portion 93b.
- the mold 53 secures an area for supporting the frame 37. As a result, the hanging lead 43 can be reliably removed.
- the mold mold 51 may be a mold mold 51 in which the protruding portion 93a and the protruding portion 93b are not formed.
- the direction in which the resin reservoir gate portions 65 (65a, 65b) extend may be inclined in a direction intersecting the X-axis direction.
- the resin reservoir gate portion 65a may be tilted in the Y-axis direction (negative direction) by an angle AL1 with respect to the X-axis direction, for example.
- the resin reservoir gate portion 65b may be inclined in the Y-axis direction (positive direction) by an angle AL2 with respect to the X-axis direction, for example.
- the flow resistance when the fluid resin flows through the resin reservoir gates 65a and 65b becomes high, and the voids are suppressed while suppressing the amount of the fluid resin flowing into the resin reservoirs 63a and 63b. Can be suppressed from remaining.
- a step portion 97 may be provided together with the inclined portion 67 on the side of the resin reservoir gate portion 65 in the portion of the resin reservoir portion 63.
- the mold mold 51 does not necessarily have to be provided with a stepped portion from the viewpoint of securing the volume of the resin reservoir 63 as much as possible. Further, in each of FIGS. 42 and 44, the inclined portion 64 provided in the portion of the resin reservoir 63 where the resin reservoir gate 65 is not located is shown by a dotted line.
- the resin reservoir 63 of the mold mold 51 described above, by providing the resin reservoir gate 65 having a narrow opening cross-sectional area communicating with the resin reservoir 63, the resin is compared with the method of Comparative Example (Patent Document 1). The flow of the fluidized resin 83 into the reservoir 63 is suppressed. Further, by providing the resin storage gate portion 65a and the resin storage gate portion 65b as the resin storage gate portion 65, the flow of the flowing resin toward the resin storage gate portion 65 is dispersed.
- the time until the fluidized resin 83 flows into the resin reservoir 63 can be extended. ..
- the void is formed in the region 85 (by the time the fluidized resin 83 flows into the resin reservoir 63). It can be excluded from position 87). Further, the amount of the fluidized resin 83 flowing into the resin reservoir 63 can be reduced, which can contribute to the reduction of the production cost.
- resin injection marks 34a and runner marks 34c remain on the surface of the semiconductor device 1 sealed in the first cavity 52a.
- the area of the resin injection mark 34a and the area of the runner mark 34c are substantially the same (see FIG. 6).
- a runner mark 34c and a resin reservoir mark 34b remain on the surface of the semiconductor device 1 sealed in the second cavity 52b.
- the area of the resin reservoir mark 34b is smaller than the area of the runner mark 34c (see FIG. 1).
- the surface of the resin mark 34 including the resin reservoir mark 34b is rough and can be easily confirmed from the appearance of the semiconductor device 1 (mold resin 33).
- Embodiment 4 The semiconductor manufacturing apparatus and the like according to the fourth embodiment will be described.
- a semiconductor manufacturing apparatus or the like to which a mold resin that can be used for mounting the molded resin that has flowed into the resin reservoir 63 and is cured will be described.
- the mold mold will be explained. As shown in FIG. 47, in the mold mold 51, the resin reservoir gate portion 65 and the resin reservoir portion 63 are formed in the upper mold 55. The position of the ceiling of the resin reservoir 63 (Z-axis direction) is higher than the position of the ceiling of the cavity 52 (Z-axis direction).
- the distance from the lower end of the upper mold 55 to the ceiling of the cavity 52 is defined as the distance L19a, and the distance from the lower end of the upper mold 55 to the ceiling of the resin reservoir 63 is defined as the distance L19b.
- the resin reservoir 63 is formed in the upper mold 55 so that the distance L19b is longer than the distance L19a.
- a lead frame 45 on which a power semiconductor element 21 or the like is mounted is formed in the same manner as in the method for manufacturing a semiconductor device described in the first embodiment (see FIG. 15).
- the lead frame 45 (see FIG. 15) is arranged in the mold mold 51 shown in FIG. 47.
- the fluid resin is gradually filled in the cavity 52 in the same manner as in the steps shown in FIGS. 16 to 21.
- the resin reservoir 63 the fluid resin that has flowed into the resin reservoir 63 is cured.
- the mold mold 51 is removed.
- the mold resin 99 (see FIG. 48) that has flowed into the resin reservoir 63 and has been cured is not removed, and the mold resin 99 is left connected to the mold resin 33.
- the semiconductor device 1 in which the mold resin 99 as the encapsulant mass is connected to the mold resin 33 is completed.
- the semiconductor device 1 is mounted on the electronic circuit board 101.
- the semiconductor device 1 is arranged on the electronic circuit board 101 with the conductive adhesive 103 interposed therebetween.
- the mold resin 99 is fitted into the opening 101a provided in advance in the electronic circuit board 101.
- the conductive adhesive 103 for example, cream solder or the like is used.
- the conductive adhesive 103 is melted by a reflow step, and then cooled to cure the conductive adhesive 103, so that the semiconductor device 1 is mounted on the electronic circuit board 101.
- the above-mentioned semiconductor device 1 can prevent the semiconductor device 1 from being displaced in the reflow process when it is mounted on the electronic circuit board 101. This will be described.
- the weight of the semiconductor device 1 on which the power semiconductor element or the like is mounted is heavier than the weight of the conventional surface mount component mounted on the electronic circuit board. Further, the adhesive strength of the conductive adhesive 103 before the conductive adhesive 103 is cured is weaker than the bonding strength after the conductive adhesive 103 is cured.
- the semiconductor device 1 cannot be fixed on the electronic circuit board 101 due to the adhesive force of the conductive adhesive 103, and the semiconductor device It is assumed that 1 is displaced from the mounting position of the electronic circuit board 101.
- the mold resin 99 is connected to the mold resin 33.
- the electronic circuit board 101 is formed with an opening 101a into which the mold resin 99 is fitted.
- the mold resin 99 is fitted into the opening 101a provided in the electronic circuit board 101.
- the semiconductor device 1 is positioned on the electronic circuit board 101. As a result, it is possible to prevent the semiconductor device 1 from being displaced from the mounting position of the electronic circuit board 101 in the reflow process. Further, the amount of the conductive adhesive 103 can be suppressed to the minimum necessary by suppressing the deviation of the semiconductor device 1 from the mounting position on the electronic circuit board 101.
- Embodiment 5 The semiconductor manufacturing apparatus and the like according to the fifth embodiment will be described. Here, a semiconductor manufacturing apparatus or the like to which a mold mold provided with a plurality of resin reservoirs is applied will be described.
- the mold mold 51 (lower mold 53) is formed with, for example, a resin reservoir 63c, a resin reservoir 63d, and a resin reservoir 63e as the resin reservoir 63.
- the resin reservoir 63c, the resin reservoir 63d, and the resin reservoir 63e are connected in series.
- a resin reservoir gate portion 65 that communicates the resin reservoir portion 63c and the second cavity 52b is formed.
- a gate portion 70 between the resin reservoirs is formed as a gate portion between the sealing material reservoirs communicating between the resin reservoirs 63.
- a gate portion 70a between the resin reservoirs is formed as a gate portion 70 between the resin reservoirs that communicates the resin reservoir 63c and the resin reservoir 63d.
- a gate portion 70b between the resin reservoirs is formed as a gate portion 70 between the resin reservoirs that communicates the resin reservoir 63d and the resin reservoir 63e.
- the cross-sectional areas of the resin reservoir gate portion 65 and the gate portions 70a and 70b between the resin reservoir portions may be the same cross-sectional area or different cross-sectional areas, but it is desirable that the cross-sectional areas are smaller than the cross-sectional area of the resin injection gate portion 59.
- a lead frame 45 on which a power semiconductor element 21 or the like is mounted is formed in the same manner as in the method for manufacturing a semiconductor device described in the first embodiment (see FIG. 15).
- the lead frame 45 is arranged on the mold mold 51.
- the fluid resin is gradually filled in the cavity 52 in the same manner as in the steps shown in FIGS. 16 to 21.
- the fluidized resin in the second cavity 52b flows into the resin reservoir 63c through the resin reservoir gate 65.
- the resin reservoir 62 is filled with the fluid resin, it flows into the resin reservoir 63d through the gate 70a between the resin reservoirs.
- the fluidized resin that has flowed into the resin reservoir 63d flows into the resin reservoir 63e via the gate 70b between the resin reservoirs.
- the mold mold 51 is removed to complete the semiconductor device sealed with the mold resin.
- the mold mold 51 is formed with a resin reservoir 63c, a resin reservoir 63d, and a resin reservoir 63e as the resin reservoir 63.
- the resin reservoir 63c, the resin reservoir 63d, and the resin reservoir 63e are connected in series by a gate 70 between the resin reservoirs.
- the resin reservoir 63c As compared with the case of using a mold mold in which one resin reservoir having the same volume as the combined volume of the resin reservoir 63c, the resin reservoir 63d, and the resin reservoir 63e is used, the resin reservoir 63c , The speed of the fluid resin that is sequentially filled in the resin reservoir 63d and the resin reservoir 63e is reduced.
- a power semiconductor element is taken as an example as a semiconductor element, but it can also be applied to a semiconductor element other than the power semiconductor element.
- the semiconductor device includes the following aspects.
- the semiconductor element mounted on the die pad and It has a die pad and a sealing material for sealing the semiconductor element in a manner in which a part of the lead terminal is exposed.
- the sealing material has a first side portion and a second side portion facing each other with a distance in the first direction. There is a sealant mark on the first side portion, A semiconductor device in which a lump of encapsulant protrudes from the second side portion.
- Appendix 2 Equipped with an electronic circuit board with an opening formed The semiconductor device according to Appendix 1, wherein the encapsulant mass is mounted on an electronic circuit board in a state of being fitted into the opening.
- the present disclosure is effectively used for semiconductor devices manufactured by the transfer molding method and methods for manufacturing the semiconductor devices.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Lead Frames For Integrated Circuits (AREA)
Abstract
Description
実施の形態1に係る半導体装置および半導体製造装置等について説明する。
はじめに、半導体製造装置によって製造された半導体装置について説明する。図1、図2および図3に示すように、パワー半導体装置としての半導体装置1では、リードフレーム45に、半導体素子としてのパワー半導体素子21およびIC素子29がそれぞれ搭載されている。リードフレーム45は、パワー半導体素子21等とともに、封止材としてのモールド樹脂33によって封止されている。
図7および図8に示すように、モールド金型51は、下金型53と上金型55とを有する。モールド金型51には、キャビティ52が形成されている。キャビティ52は、第1方向としてのX軸方向に延在する。キャビティ52は、たとえば、第1キャビティ52aと第2キャビティ52bとを含む。図7および図9に示すように、モールド金型51には、第1キャビティ52aにモールド樹脂を注入する樹脂注入ゲート部59が形成されている。モールド金型51には、第1キャビティ52aと第2キャビティ52bとの間を連通するランナー61が形成されている。第1キャビティ52aに注入されたモールド樹脂は、ランナー61を経て第2キャビティ52bに注入される。
次に、上述したモールド金型を適用した半導体装置の製造方法について説明する。まず、金属板のエッチングまたは金属板の打ち抜きによってリードフレーム45(図15参照)が形成される。リードフレーム45には、大ダイパッド9、小ダイパッド15、ICリード23等が形成される。次に、曲げ金型を用いてリードフレーム50に曲げ加工を施すことにより、リード段差部7(図15参照)が形成される。
上述したように、キャビティ52内に流動樹脂83が徐々に充填される間に、キャビティ52内の空気は、モールド金型51に形成されたエアベント79から排出されることになる(図18参照)。
実施の形態2に係る半導体製造装置等について説明する。ここでは、一つのキャビティに対して、複数の樹脂溜め部を備えたモールド金型を適用した半導体製造装置等について説明する。
半導体製造装置としてのモールド金型について説明する。図34に示すように、モールド金型51(下金型53)には、たとえば、樹脂溜め部63として、樹脂溜め部63aと樹脂溜め部63bとが形成されている。第2キャビティ52bと樹脂溜め部63aとを連通する樹脂溜めゲート部65aが形成されている。第2キャビティ52bと樹脂溜め部63bとを連通する樹脂溜めゲート部65bが形成されている。
次に、上述したモールド金型を使用した半導体装置の製造方法について説明する。
実施の形態3に係る半導体製造装置等について説明する。
図37に示すように、半導体製造装置としてのモールド金型51(下金型53)には、たとえば、樹脂溜め部63として、樹脂溜め部63aと樹脂溜め部63bとが形成されている。第2キャビティ52bと樹脂溜め部63aとを連通する樹脂溜めゲート部65aが形成されている。第2キャビティ52bと樹脂溜め部63bとを連通する樹脂溜めゲート部65bが形成されている。樹脂溜めゲート部65aおよび樹脂溜めゲート部65bのそれぞれでは、シャッター部としての可動ピンは配置されていない。
次に、上述したモールド金型を使用した半導体装置の製造方法について説明する。まず、前述した半導体装置の製造方法と同様にして、モールド樹脂によって封止される前の、パワー半導体素子等が搭載されたリードフレームを含む複数の半導体装置が形成される。
実施の形態4に係る半導体製造装置等について説明する。ここでは、樹脂溜め部63に流れ込んで硬化したモールド樹脂を、実装に使用することができるモールド金型を適用した半導体製造装置等について説明する。
実施の形態5に係る半導体製造装置等について説明する。ここでは、複数の樹脂溜め部を備えたモールド金型を適用した半導体製造装置等について説明する。
(付記1)
リード端子と、
前記リード端子に接続されたダイパッドと、
前記ダイパッドに搭載された半導体素子と、
前記リード端子の一部を露出する態様で、前記ダイパッドおよび前記半導体素子を封止する封止材と
を有し、
前記封止材は、第1方向に距離を隔てて互いに対向する第1側部と第2側部とを有し、
前記第1側部には、封止材痕があり、
前記第2側部には、封止材塊部が突出している、半導体装置。
開口部が形成された電子回路基板を備え、
前記封止材塊部は前記開口部に嵌め込まれた状態で電子回路基板に実装された、付記1記載の半導体装置。
Claims (22)
- 下金型と上金型とを含むモールド金型によって第1方向に延在するキャビティが形成され、前記キャビティ内に半導体素子を搭載したリードフレームを配置し、前記キャビティ内に封止材を注入することによって、前記リードフレームを前記半導体素子とともに封止する半導体製造装置であって、
前記キャビティ内へ前記封止材を注入する封止材注入ゲート部と、
前記キャビティを挟んで前記封止材注入ゲート部が配置されている一方側とは前記第1方向に距離を隔てられた他方側に配置され、前記キャビティを経て流れ込む前記封止材を溜める一つ以上の封止材溜め部と、
前記キャビティと前記封止材溜め部との間を連通する封止材溜めゲート部と
を備え、
前記封止材注入ゲート部は、第1開口断面積を有し、
前記封止材溜めゲート部は、第2開口断面積を有し、
前記第2開口断面積は前記第1開口断面積よりも小さい、半導体製造装置。 - 前記封止材溜めゲート部および前記封止材溜め部は、前記下金型および前記上金型の少なくともいずれかに設けられた、請求項1記載の半導体製造装置。
- 前記封止材溜めゲート部は、前記キャビティから前記封止材溜め部へ前記封止材が流れるのを阻止するシャッター部を備えた、請求項1または2に記載の半導体製造装置。
- 前記モールド金型では、
前記キャビティ内に前記封止材を注入する際に、前記シャッター部を閉じた状態にし、
前記キャビティ内に前記封止材が充填された時点で、前記シャッター部を開けた状態にする、請求項3記載の半導体製造装置。 - 前記封止材溜めゲート部は、
前記キャビティ側に位置し、前記第2開口断面積を有する第1部と、
前記第1部に対して前記封止材溜め部側に位置し、前記第2開口断面積よりも大きい第3開口断面積を有する第2部と
を有する、請求項1~4のいずれか1項に記載の半導体製造装置。 - 前記第1部から前記第2部に向かって傾斜した傾斜部を含む、請求項5記載の半導体製造装置。
- 前記封止材溜めゲート部は、前記他方側における、前記封止材注入ゲート部に最も近い位置に配置された、請求項1~6のいずれか1項に記載の半導体製造装置。
- 前記封止材溜めゲート部は、前記他方側における、前記封止材注入ゲート部に最も近い位置から前記第1方向と交差する第2方向に離れた位置に配置された、請求項1~6のいずれか1項に記載の半導体製造装置。
- 前記封止材溜め部は、
第1封止材溜め部と、
第2封止材溜め部と
を含み、
前記封止材溜めゲート部は、
前記キャビティと前記第1封止材溜め部との間を連通する第1封止材溜めゲート部と、
前記キャビティと前記第2封止材溜め部との間を連通する第2封止材溜めゲート部と
を含む、請求項1~8のいずれか1項に記載の半導体製造装置。 - 前記封止材溜めゲート部は、前記キャビティと前記封止材溜め部とを前記第1方向と交差する方向に連通する、請求項1~9のいずれか1項に記載の半導体製造装置。
- 前記封止材溜め部は、少なくとも一の前記封止材溜め部と他の前記封止材溜め部とを含み、
前記封止材溜めゲート部は、前記キャビティと一の前記封止材溜め部との間を連通し、
一の前記封止材溜め部と他の前記封止材溜め部との間は、封止材溜め部間ゲート部によって連通された、請求項1~8のいずれか1項に記載の半導体製造装置。 - リードフレームを用意する工程と、
前記リードフレームに半導体素子を搭載する工程と、
下金型および上金型を含み、前記下金型と前記上金型とによってキャビティが形成されるモールド金型を用意する工程と、
前記半導体素子が搭載された前記リードフレームを、前記モールド金型内に配置する工程と、
前記キャビティ内に封止材を注入する工程と、
前記モールド金型を取り外す工程と
を有し、
前記モールド金型を用意する工程は、
前記キャビティへ向けて封止材を注入する封止材注入ゲート部と、
前記キャビティを挟んで前記封止材注入ゲート部が配置されている第1側とは反対の第2側に設けられ、前記キャビティを経て流れ込む封止材を溜める一つ以上の封止材溜め部と、
前記キャビティと前記封止材溜め部との間を連通する封止材溜めゲート部と
を備えた前記モールド金型を用意する工程を備え、
前記キャビティ内に前記封止材を注入する工程は、前記キャビティ内に充填される前記封止材が前記封止材溜め部へ流れ込むまで前記封止材を注入する工程を備えた、半導体装置の製造方法。 - 前記モールド金型を用意する工程は、前記封止材溜めゲート部に設けられ、前記キャビティから前記封止材溜め部へ前記封止材が流れるのを阻止するシャッター部を備えた前記モールド金型を用意する工程を含み、
前記キャビティ内に前記封止材を注入する工程は、
前記シャッター部を閉じた状態で、前記キャビティ内に前記封止材を注入する工程と、
前記キャビティ内に前記封止材が充填された後、前記シャッター部を開けた状態にして、前記キャビティ内に充填された前記封止材が前記封止材溜め部へ流れ込むまで前記キャビティ内に前記封止材を注入する工程と
を含む、請求項12記載の半導体装置の製造方法。 - 前記モールド金型を取り外す工程は、前記シャッター部を上下方向に稼動させて、前記リードフレーム、前記下金型および前記上金型のいずれかに当接させることによって、前記下金型と前記上金型とを離間させる工程を含む、請求項13記載の半導体装置の製造方法。
- 前記モールド金型を取り外す工程は、
前記封止材溜め部にへ流れ込んだ封止材の部分を、前記キャビティ内に充填された前記封止材から取り除く工程と、
前記封止材注入ゲート部に位置する前記封止材の部分を、前記キャビティ内に充填された前記封止材から取り除く工程と
を含む、請求項12~14のいずれか1項に記載の半導体装置の製造方法。 - 前記リードフレームを用意する工程は、ダイパッドおよびリード端子となる部分を含み、前記ダイパッドの高さ位置が前記リード端子となる部分の高さ位置とは異なる前記リードフレームを用意する工程を含み、
前記リードフレームに前記半導体素子を搭載する工程は、前記半導体素子を前記ダイパッドに搭載する工程を含み、
前記リードフレームを前記モールド金型内に配置する工程は、前記ダイパッドと前記キャビティを構成する前記下金型の部分との間に、高さ方向に第1距離を有する第1充填空間が形成されるとともに、前記ダイパッドと前記キャビティを構成する前記上金型の部分との間に、前記高さ方向に前記第1距離よりも長い第2距離を有する第2充填空間が形成される態様で、前記リードフレームを配置する工程を含み、
前記封止材を注入する工程は、前記封止材を前記第1充填空間と前記第2充填空間とに充填する工程を含む、請求項12~15のいずれか1項に記載の半導体装置の製造方法。 - 前記リードフレームを用意する工程は、前記モールド金型内に配置された状態で前記封止材溜め部が位置する領域を覆わない切り欠き部が形成された前記リードフレームを用意する工程を含む、請求項12~16のいずれか1項に記載の半導体装置の製造方法。
- リード端子と、
前記リード端子に接続されたダイパッドと、
前記ダイパッドに搭載された半導体素子と、
前記リード端子の一部を露出する態様で、前記ダイパッドおよび前記半導体素子を封止する封止材と
を有し、
前記封止材は、第1方向に距離を隔てて互いに対向する第1側部と第2側部とを有し、
前記第1側部には、第1封止材痕があり、
前記第2側部には、一つ以上の第2封止材痕がある、半導体装置。 - 前記第2封止材痕の面積は、前記第1封止材痕の面積よりも小さい、請求項18に記載の半導体装置。
- 前記第2封止材痕は、前記第2側部における、前記第1封止材痕とは前記第1方向に対向する位置に残されている、請求項18または19に記載の半導体装置。
- 前記封止材は、
前記ダイパッドに前記半導体素子が搭載されている側を覆う第1封止材部分と、
前記ダイパッドに前記半導体素子が搭載されている側とは反対側を覆う第2封止材部分と
を含み、
前記第2封止材部分の厚さは、前記第1封止材部分の厚さよりも薄い、請求項18~20のいずれか1項に記載の半導体装置。 - 前記第2封止材痕は、前記第2側部における、前記第1封止材痕とは前記第1方向に対向する位置から、前記第2側部に沿って距離を隔てられた位置に残されている、請求項18~21のいずれか1項に記載の半導体装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021551305A JP7269362B2 (ja) | 2019-10-07 | 2020-09-29 | 半導体製造装置およびそれを用いた半導体装置の製造方法ならびに半導体装置 |
CN202080069138.0A CN114514599B (zh) | 2019-10-07 | 2020-09-29 | 半导体制造装置、使用半导体制造装置的半导体装置的制造方法及半导体装置 |
US17/636,650 US12255080B2 (en) | 2019-10-07 | 2020-09-29 | Semiconductor manufacturing apparatus and method of manufacturing semiconductor device using the same, and semiconductor device |
DE112020004809.8T DE112020004809T5 (de) | 2019-10-07 | 2020-09-29 | Vorrichtung zur Halbleiterfertigung, Verfahren zur Herstellung eines Halbleiterbauelements unter Verwendung dieser Vorrichtung und Halbleiterbauelement |
JP2023069540A JP7504258B2 (ja) | 2019-10-07 | 2023-04-20 | 半導体製造装置およびそれを用いた半導体装置の製造方法ならびに半導体装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019184617 | 2019-10-07 | ||
JP2019-184617 | 2019-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021070677A1 true WO2021070677A1 (ja) | 2021-04-15 |
Family
ID=75437907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2020/036886 WO2021070677A1 (ja) | 2019-10-07 | 2020-09-29 | 半導体製造装置およびそれを用いた半導体装置の製造方法ならびに半導体装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US12255080B2 (ja) |
JP (2) | JP7269362B2 (ja) |
CN (1) | CN114514599B (ja) |
DE (1) | DE112020004809T5 (ja) |
WO (1) | WO2021070677A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7528042B2 (ja) | 2021-09-17 | 2024-08-05 | 株式会社東芝 | 半導体装置 |
US12211764B2 (en) | 2021-11-25 | 2025-01-28 | Mitsubishi Electric Corporation | Semiconductor device and method of manufacturing the same |
WO2025100332A1 (ja) * | 2023-11-09 | 2025-05-15 | ローム株式会社 | 半導体装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117334663A (zh) * | 2023-09-28 | 2024-01-02 | 海信家电集团股份有限公司 | 智能功率模块和智能功率模块的制造方法 |
WO2024222250A1 (zh) * | 2023-04-28 | 2024-10-31 | 海信家电集团股份有限公司 | 智能功率模块及其制造方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05218122A (ja) * | 1992-01-30 | 1993-08-27 | Nec Corp | 樹脂封止型半導体装置の樹脂封止金型 |
JPH05326594A (ja) * | 1992-05-22 | 1993-12-10 | Nec Corp | 半導体装置の樹脂封止金型と樹脂封止方法 |
JP2007042709A (ja) * | 2005-08-01 | 2007-02-15 | Seiko Epson Corp | 樹脂封止金型及び樹脂封止型電子部品 |
JP2010263066A (ja) * | 2009-05-07 | 2010-11-18 | Renesas Electronics Corp | 半導体装置の製造方法 |
JP2012146799A (ja) * | 2011-01-12 | 2012-08-02 | Renesas Electronics Corp | 半導体装置の製造方法 |
JP2013207083A (ja) * | 2012-03-28 | 2013-10-07 | Seiko Epson Corp | 電子デバイスの製造方法、及び樹脂成形型 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2893085B2 (ja) | 1988-10-18 | 1999-05-17 | トーワ株式会社 | 電子部品の樹脂封止成形方法及び装置 |
JPH07112453B2 (ja) | 1990-11-21 | 1995-12-06 | 徳栄 坂井 | 鍋減圧調理による味付け方法 |
WO1998024122A1 (fr) * | 1996-11-28 | 1998-06-04 | Mitsubishi Denki Kabushiki Kaisha | Dispositif a semi-conducteur |
JP3660861B2 (ja) * | 2000-08-18 | 2005-06-15 | 株式会社ルネサステクノロジ | 半導体装置の製造方法 |
JP5271886B2 (ja) * | 2009-12-08 | 2013-08-21 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
JP5563917B2 (ja) * | 2010-07-22 | 2014-07-30 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | 回路装置及びその製造方法 |
DE112014006660B4 (de) * | 2014-05-12 | 2019-10-31 | Mitsubishi Electric Corporation | Leistungshalbleiteranordnung und Verfahren zum Herstellen derselben |
JP6469660B2 (ja) * | 2014-05-14 | 2019-02-13 | 三菱電機株式会社 | 半導体装置の製造方法 |
US20190371625A1 (en) | 2017-02-27 | 2019-12-05 | Mitsubishi Electric Corporation | Semiconductor device and method for manufacturing semiconductor device |
JP6768569B2 (ja) * | 2017-03-21 | 2020-10-14 | ルネサスエレクトロニクス株式会社 | 半導体装置の製造方法および半導体装置 |
JP2019009184A (ja) | 2017-06-21 | 2019-01-17 | 富士電機株式会社 | モールド装置及びモールド方法 |
JP7112453B2 (ja) | 2020-07-15 | 2022-08-03 | 本田技研工業株式会社 | 車両 |
-
2020
- 2020-09-29 WO PCT/JP2020/036886 patent/WO2021070677A1/ja active IP Right Grant
- 2020-09-29 JP JP2021551305A patent/JP7269362B2/ja active Active
- 2020-09-29 DE DE112020004809.8T patent/DE112020004809T5/de active Pending
- 2020-09-29 US US17/636,650 patent/US12255080B2/en active Active
- 2020-09-29 CN CN202080069138.0A patent/CN114514599B/zh active Active
-
2023
- 2023-04-20 JP JP2023069540A patent/JP7504258B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05218122A (ja) * | 1992-01-30 | 1993-08-27 | Nec Corp | 樹脂封止型半導体装置の樹脂封止金型 |
JPH05326594A (ja) * | 1992-05-22 | 1993-12-10 | Nec Corp | 半導体装置の樹脂封止金型と樹脂封止方法 |
JP2007042709A (ja) * | 2005-08-01 | 2007-02-15 | Seiko Epson Corp | 樹脂封止金型及び樹脂封止型電子部品 |
JP2010263066A (ja) * | 2009-05-07 | 2010-11-18 | Renesas Electronics Corp | 半導体装置の製造方法 |
JP2012146799A (ja) * | 2011-01-12 | 2012-08-02 | Renesas Electronics Corp | 半導体装置の製造方法 |
JP2013207083A (ja) * | 2012-03-28 | 2013-10-07 | Seiko Epson Corp | 電子デバイスの製造方法、及び樹脂成形型 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7528042B2 (ja) | 2021-09-17 | 2024-08-05 | 株式会社東芝 | 半導体装置 |
US12211764B2 (en) | 2021-11-25 | 2025-01-28 | Mitsubishi Electric Corporation | Semiconductor device and method of manufacturing the same |
WO2025100332A1 (ja) * | 2023-11-09 | 2025-05-15 | ローム株式会社 | 半導体装置 |
Also Published As
Publication number | Publication date |
---|---|
CN114514599A (zh) | 2022-05-17 |
JP7269362B2 (ja) | 2023-05-08 |
US12255080B2 (en) | 2025-03-18 |
JPWO2021070677A1 (ja) | 2021-04-15 |
US20220293434A1 (en) | 2022-09-15 |
JP7504258B2 (ja) | 2024-06-21 |
CN114514599B (zh) | 2025-05-13 |
JP2023083481A (ja) | 2023-06-15 |
DE112020004809T5 (de) | 2022-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2021070677A1 (ja) | 半導体製造装置およびそれを用いた半導体装置の製造方法ならびに半導体装置 | |
US9947613B2 (en) | Power semiconductor device and method for manufacturing the same | |
US7820486B2 (en) | Method of fabricating a semiconductor device having a heat sink with an exposed surface | |
US6717279B2 (en) | Semiconductor device with recessed portion in the molding resin | |
US9240369B2 (en) | Encapsulated semiconductor device and method for manufacturing the same | |
EP2677539A1 (en) | Semiconductor device and process for manufacture thereof | |
US20030075785A1 (en) | Packaging high power integrated circuit devices | |
JP3194917B2 (ja) | 樹脂封止方法 | |
WO2007010315A2 (en) | Leadframe strip and mold apparatus for an electronic component and method of encapsulating an electronic component | |
KR200309906Y1 (ko) | 반도체 패키지 제조용 리드프레임 | |
KR100591718B1 (ko) | 수지-밀봉형 반도체 장치 | |
TW201628107A (zh) | 半導體裝置之製造方法 | |
JP2014204082A (ja) | 半導体装置の製造方法 | |
JP2015220235A (ja) | 半導体装置 | |
TWI658518B (zh) | 電路零件的製造方法及電路零件 | |
CN112838014A (zh) | 树脂成形后的引线框的制造方法、树脂成形品的制造方法及引线框 | |
US7795712B2 (en) | Lead frame with non-conductive connective bar | |
CN108140583B (zh) | 半导体装置的制造方法 | |
JP2010212628A (ja) | 半導体装置の製造方法 | |
JP7142714B2 (ja) | 電力用半導体装置の製造方法 | |
JP2008252005A (ja) | バリ取り方法および半導体装置の製造方法 | |
JP2005081695A (ja) | 樹脂成形用金型 | |
CN115335987A (zh) | 半导体装置及半导体装置的制造方法 | |
JP2009158624A (ja) | 光半導体装置用パッケージおよびその製造方法 | |
JPH1187381A (ja) | 半導体装置の樹脂封止方法及び樹脂封止装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20874249 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2021551305 Country of ref document: JP Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20874249 Country of ref document: EP Kind code of ref document: A1 |
|
WWG | Wipo information: grant in national office |
Ref document number: 17636650 Country of ref document: US |