JP5315028B2 - 電子装置および電子装置の製造方法 - Google Patents
電子装置および電子装置の製造方法 Download PDFInfo
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- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/50—Encapsulations or containers
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- 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
- B29C45/1418—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 the inserts being deformed or preformed, e.g. by the injection pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- 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
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- H—ELECTRICITY
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- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/804—Containers or encapsulations
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- 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
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
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- 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
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- 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
- H01L2224/93—Batch processes
- H01L2224/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L2224/97—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
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- H01L2924/151—Die mounting substrate
- H01L2924/156—Material
- H01L2924/15786—Material with a principal constituent of the material being a non metallic, non metalloid inorganic material
- H01L2924/15788—Glasses, e.g. amorphous oxides, nitrides or fluorides
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- H—ELECTRICITY
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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- H01L2924/181—Encapsulation
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- 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
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- H01L2924/3025—Electromagnetic shielding
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- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Light Receiving Elements (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Description
通常、電子装置は使用により、高温状態と低温状態が繰り返されるため、素子と、枠材と封止樹脂が、熱膨張と熱収縮を繰り返すことになる。その際、枠材の線膨張係数と封止樹脂の線膨張係数が互いに異なるため、枠材は周囲に密着している封止樹脂により自由な熱膨張及び熱収縮を行えず、また封止樹脂からの応力も受ける。そのため、枠材の内部に応力が蓄積される。この応力により、枠材と封止樹脂の密着面よりも面積が小さい枠材と素子との密着面が剥離すると考えられた。
図1(a)は、第1実施形態に係る電子装置を示す斜視図、図1(b)は、図1(a)中のI−I'で切断した断面図である。図2〜図4は、第1実施形態に係る電子装置の製造工程を示す断面図である。
また、枠材102の高さとは、ウエハ101aの表面から枠材102の上面までの垂直方向の長さであって、枠材102を形成する樹脂の厚さをいう。
従来の電子装置では温度変化により枠材の内部に応力が溜まり、枠材と受光素子との密着面が剥離することがあった。これに対し、本実施形態の電子装置108は、枠材102と封止樹脂層106との間には空隙107が存在する。この空隙107により、枠材102と封止樹脂層106とがそれぞれ熱膨張及び熱収縮することができる。そのため、封止樹脂層106から枠材102への応力が緩和され、枠材102の内部に応力が蓄積されにくくなる。これにより、枠材102と受光素子101との密着面が剥離することを抑制できる。
図5は、第2実施形態に係る電子装置208を示す断面図である。図6は、第2実施形態に係る電子装置の製造方法の一部を示す工程断面図である。第2実施形態における枠材102の表層に、第2樹脂への密着性が、第1樹脂よりも低い酸化膜102b(低密着層)を有する。本実施形態において、低密着層は枠材102の表層を酸化した酸化膜102bである。その他の構成は、第1実施形態と同じである。
まず、図2に示すように、機能部101bの周囲を被覆して立設した枠材102を形成する。
その他の効果は、上記実施形態と同様である。
図7(a)は、第3実施形態に係る電子装置を示す斜視図、図7(b)は、図7(a)中のA−A’で切断した断面図である。第1実施形態では枠材102が円筒である場合について説明したが、第3実施形態の枠材302は、枠材302の断面形状は下方ほど幅狭の逆台形である。その他の構成は、第1実施形態と同じである。
まず、図2(a)、(b)に示すように、第1実施形態と同様にして、ウエハ101a上に、樹脂膜102aを形成する。
その他の効果は、上記実施形態と同様である。
図8(a)は、第4実施形態に係る電子装置を示す斜視図、図8(b)は、図8(a)中のA−A'で切断した断面図である。第4実施形態では、第3実施形態の枠材302bの側面に酸化膜が形成されている例について説明する。その他の構成は、第3実施形態と同じである。
101a ウエハ
101b 機能部
102 枠材
102a 樹脂膜
102b 酸化膜
103 露光用マスク
104 リードフレーム
105 金属細線
106 封止樹脂層
107 空隙
108 電子装置
111 封止用金型
111a 封止用金型
111b 封止用金型
208 電子装置
302 枠材
302b 酸化膜
Claims (6)
- ウエハに形成された素子と、
前記ウエハ上に、前記素子の機能部を囲むように立設する第1樹脂からなる枠材と、
前記枠材の周囲を埋め、前記枠材との間に空隙が存在するように設けられた第2樹脂からなる樹脂層と、を備え、
前記枠材の少なくとも側面に、前記第2樹脂への密着性が、前記第1樹脂よりも低い低密着層を有し、
前記低密着層は、前記枠材の表層を酸化した酸化膜であり、
前記酸化膜は、前記枠材に対して酸素プラズマ処理を施して形成されている電子装置。 - 請求項1に記載の電子装置において、
前記枠材の上面の面積が、前記枠材の下面の面積よりも大きいことを特徴とする電子装置。 - 請求項2に記載の電子装置において、
前記枠材の断面形状は下方ほど幅狭であることを特徴とする電子装置。 - 複数の素子が形成されたウエハ上に、前記素子の機能部を囲むように立設する第1樹脂からなる枠材を形成する工程と、
前記枠材の上面に封止用金型の成型面を圧接し、前記枠材の幅を広げるように前記枠材を変形する工程と、
前記枠材が変形された状態で、前記封止用金型の内側に第2樹脂を注入する工程と、
前記封止用金型を取り外し、広げられた前記枠材の幅をもとに戻す工程と、
を含み、
前記枠材を形成する工程の後、前記枠材の幅を広げるように前記枠材を変形する工程の前に、
前記枠材に酸化処理を施す工程、
を含み、
前記酸化処理は酸素プラズマ処理であり、
前記枠材の幅をもとに戻す前記工程の際に、前記枠材と前記第2樹脂との間に空隙が形成される電子装置の製造方法。 - 請求項4に記載の電子装置の製造方法において、
前記枠材を形成する工程は、
前記ウエハ上に前記第1樹脂からなる樹脂膜を形成する工程と、
前記樹脂膜上に前記枠材のパターンを有するマスクを設け、散乱光を用いて、前記樹脂膜を露光及び現像して、前記枠材を形成する工程と、
を含むことを特徴とする電子装置の製造方法。 - 請求項5に記載の電子装置の製造方法において、
前記枠材に酸化処理を施す工程の後に、
前記ウエハの表面および前記枠材の上面をプラズマを用いてクリーニングする工程、
を含むことを特徴とする電子装置の製造方法。
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JP2008309276A JP5315028B2 (ja) | 2008-12-04 | 2008-12-04 | 電子装置および電子装置の製造方法 |
US12/630,466 US8243461B2 (en) | 2008-12-04 | 2009-12-03 | Electronic device and process for manufacturing electronic device |
US13/549,021 US8986588B2 (en) | 2008-12-04 | 2012-07-13 | Electronic device and process for manufacturing electronic device |
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US8270177B2 (en) * | 2007-07-27 | 2012-09-18 | Renesas Electronics Corporation | Electronic device and method for manufacturing electronic device |
WO2013027464A1 (ja) * | 2011-08-19 | 2013-02-28 | 富士フイルム株式会社 | 撮像素子モジュール及びその製造方法 |
JP2013243340A (ja) * | 2012-04-27 | 2013-12-05 | Canon Inc | 電子部品、実装部材、電子機器およびこれらの製造方法 |
JP6296687B2 (ja) * | 2012-04-27 | 2018-03-20 | キヤノン株式会社 | 電子部品、電子モジュールおよびこれらの製造方法。 |
JP5885690B2 (ja) | 2012-04-27 | 2016-03-15 | キヤノン株式会社 | 電子部品および電子機器 |
GB2508837A (en) * | 2012-12-12 | 2014-06-18 | Univ Warwick | Multilayer manufacturing method utilising mould |
TWI514938B (zh) * | 2013-12-26 | 2015-12-21 | Ind Tech Res Inst | 撓性電子模組 |
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WO2008053849A1 (en) * | 2006-11-02 | 2008-05-08 | Toppan Printing Co., Ltd. | Solid-state imaging device and method for manufacturing the same |
JP2008197357A (ja) | 2007-02-13 | 2008-08-28 | Olympus Corp | 照明装置 |
US8270177B2 (en) * | 2007-07-27 | 2012-09-18 | Renesas Electronics Corporation | Electronic device and method for manufacturing electronic device |
JP2009130220A (ja) * | 2007-11-26 | 2009-06-11 | Sharp Corp | 固体撮像装置およびその製造方法 |
US7813043B2 (en) * | 2008-08-15 | 2010-10-12 | Ether Precision, Inc. | Lens assembly and method of manufacture |
WO2010113712A1 (ja) * | 2009-03-31 | 2010-10-07 | アルプス電気株式会社 | 容量型湿度センサ及びその製造方法 |
JP5445695B2 (ja) * | 2010-12-27 | 2014-03-19 | 日産自動車株式会社 | 半導体モジュール、モールド装置及びモールド成形方法 |
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US8986588B2 (en) | 2015-03-24 |
US20100142169A1 (en) | 2010-06-10 |
US20120282740A1 (en) | 2012-11-08 |
JP2010135523A (ja) | 2010-06-17 |
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