WO2016136741A1 - 封止用フィルム及びそれを用いた電子部品装置 - Google Patents
封止用フィルム及びそれを用いた電子部品装置 Download PDFInfo
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- WO2016136741A1 WO2016136741A1 PCT/JP2016/055264 JP2016055264W WO2016136741A1 WO 2016136741 A1 WO2016136741 A1 WO 2016136741A1 JP 2016055264 W JP2016055264 W JP 2016055264W WO 2016136741 A1 WO2016136741 A1 WO 2016136741A1
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- WIPO (PCT)
- Prior art keywords
- component
- film
- epoxy resin
- sealing
- mass
- Prior art date
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- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical group Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 229910002026 crystalline silica Inorganic materials 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- SJJCABYOVIHNPZ-UHFFFAOYSA-N cyclohexyl-dimethoxy-methylsilane Chemical compound CO[Si](C)(OC)C1CCCCC1 SJJCABYOVIHNPZ-UHFFFAOYSA-N 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- OTARVPUIYXHRRB-UHFFFAOYSA-N diethoxy-methyl-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](C)(OCC)CCCOCC1CO1 OTARVPUIYXHRRB-UHFFFAOYSA-N 0.000 description 1
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 description 1
- AHUXYBVKTIBBJW-UHFFFAOYSA-N dimethoxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](OC)(OC)C1=CC=CC=C1 AHUXYBVKTIBBJW-UHFFFAOYSA-N 0.000 description 1
- NHYFIJRXGOQNFS-UHFFFAOYSA-N dimethoxy-bis(2-methylpropyl)silane Chemical compound CC(C)C[Si](OC)(CC(C)C)OC NHYFIJRXGOQNFS-UHFFFAOYSA-N 0.000 description 1
- VHPUZTHRFWIGAW-UHFFFAOYSA-N dimethoxy-di(propan-2-yl)silane Chemical compound CO[Si](OC)(C(C)C)C(C)C VHPUZTHRFWIGAW-UHFFFAOYSA-N 0.000 description 1
- WHGNXNCOTZPEEK-UHFFFAOYSA-N dimethoxy-methyl-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](C)(OC)CCCOCC1CO1 WHGNXNCOTZPEEK-UHFFFAOYSA-N 0.000 description 1
- ZDSFBVVBFMKMRF-UHFFFAOYSA-N dimethyl-bis(prop-2-enyl)silane Chemical compound C=CC[Si](C)(C)CC=C ZDSFBVVBFMKMRF-UHFFFAOYSA-N 0.000 description 1
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- QBNKDNRLUFTYIN-UHFFFAOYSA-N dodecyl(methoxy)silane Chemical compound CCCCCCCCCCCC[SiH2]OC QBNKDNRLUFTYIN-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- MABAWBWRUSBLKQ-UHFFFAOYSA-N ethenyl-tri(propan-2-yloxy)silane Chemical compound CC(C)O[Si](OC(C)C)(OC(C)C)C=C MABAWBWRUSBLKQ-UHFFFAOYSA-N 0.000 description 1
- SBRXLTRZCJVAPH-UHFFFAOYSA-N ethyl(trimethoxy)silane Chemical compound CC[Si](OC)(OC)OC SBRXLTRZCJVAPH-UHFFFAOYSA-N 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- YSEZLNANHYQLGP-UHFFFAOYSA-N hexane phenol Chemical compound C1(=CC=CC=C1)O.C1(=CC=CC=C1)O.CCCCCC YSEZLNANHYQLGP-UHFFFAOYSA-N 0.000 description 1
- CZWLNMOIEMTDJY-UHFFFAOYSA-N hexyl(trimethoxy)silane Chemical compound CCCCCC[Si](OC)(OC)OC CZWLNMOIEMTDJY-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- POPACFLNWGUDSR-UHFFFAOYSA-N methoxy(trimethyl)silane Chemical compound CO[Si](C)(C)C POPACFLNWGUDSR-UHFFFAOYSA-N 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- 239000005055 methyl trichlorosilane Substances 0.000 description 1
- DRXHEPWCWBIQFJ-UHFFFAOYSA-N methyl(triphenoxy)silane Chemical compound C=1C=CC=CC=1O[Si](OC=1C=CC=CC=1)(C)OC1=CC=CC=C1 DRXHEPWCWBIQFJ-UHFFFAOYSA-N 0.000 description 1
- JLUFWMXJHAVVNN-UHFFFAOYSA-N methyltrichlorosilane Chemical compound C[Si](Cl)(Cl)Cl JLUFWMXJHAVVNN-UHFFFAOYSA-N 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 1
- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 description 1
- KBJFYLLAMSZSOG-UHFFFAOYSA-N n-(3-trimethoxysilylpropyl)aniline Chemical compound CO[Si](OC)(OC)CCCNC1=CC=CC=C1 KBJFYLLAMSZSOG-UHFFFAOYSA-N 0.000 description 1
- NXPPAOGUKPJVDI-UHFFFAOYSA-N naphthalene-1,2-diol Chemical compound C1=CC=CC2=C(O)C(O)=CC=C21 NXPPAOGUKPJVDI-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 1
- 150000002903 organophosphorus compounds Chemical class 0.000 description 1
- AFEQENGXSMURHA-UHFFFAOYSA-N oxiran-2-ylmethanamine Chemical compound NCC1CO1 AFEQENGXSMURHA-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920006122 polyamide resin Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical compound S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 description 1
- WUMSTCDLAYQDNO-UHFFFAOYSA-N triethoxy(hexyl)silane Chemical compound CCCCCC[Si](OCC)(OCC)OCC WUMSTCDLAYQDNO-UHFFFAOYSA-N 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- FBBATURSCRIBHN-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyldisulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSCCC[Si](OCC)(OCC)OCC FBBATURSCRIBHN-UHFFFAOYSA-N 0.000 description 1
- VTHOKNTVYKTUPI-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC VTHOKNTVYKTUPI-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
- XYJRNCYWTVGEEG-UHFFFAOYSA-N trimethoxy(2-methylpropyl)silane Chemical compound CO[Si](OC)(OC)CC(C)C XYJRNCYWTVGEEG-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- LFRDHGNFBLIJIY-UHFFFAOYSA-N trimethoxy(prop-2-enyl)silane Chemical compound CO[Si](OC)(OC)CC=C LFRDHGNFBLIJIY-UHFFFAOYSA-N 0.000 description 1
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- 239000005051 trimethylchlorosilane Substances 0.000 description 1
- NLSXASIDNWDYMI-UHFFFAOYSA-N triphenylsilanol Chemical compound C=1C=CC=CC=1[Si](C=1C=CC=CC=1)(O)C1=CC=CC=C1 NLSXASIDNWDYMI-UHFFFAOYSA-N 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 125000002256 xylenyl group Chemical class C1(C(C=CC=C1)C)(C)* 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
- C08L2203/162—Applications used for films sealable films
Definitions
- the present invention relates to a sealing film and an electronic component device using the same.
- semiconductor devices As the electronic devices become lighter and thinner, semiconductor devices are becoming smaller and thinner. For example, semiconductor devices having almost the same size as a semiconductor element, and a package-on-package method in which a semiconductor device is stacked on the semiconductor device are also actively performed. Therefore, it is expected that semiconductor devices will be further reduced in size and thickness in the future.
- Patent Documents 1 to 3 semiconductor elements manufactured from a semiconductor wafer and separated into pieces are rearranged so as to have an appropriate interval, and then these are used using a solid or liquid sealing resin.
- a mounting method including a sealing step and a semiconductor device manufactured using the method are disclosed. In this method, a process such as formation of wiring for arranging external connection terminals and external connection terminals, etc. is performed on a sealed molded product in which a plurality of semiconductor elements are sealed. As the number of semiconductor elements increases, the number of semiconductor devices that can be manufactured in a single process increases.
- the sealing of the rearranged semiconductor elements is performed by molding by molding a liquid or solid resin sealing material with a mold.
- transfer molding has been used in which a pellet-shaped resin sealing material is melted and sealed by pouring the sealing resin into a mold.
- transfer molding is performed by pouring molten resin, an unfilled portion may occur when a large area is to be sealed.
- the present inventors have been able to deal with a sealing molding method that does not require a mold, have little concern about dust generation, and can be expected to form a panel of the above-described sealing molding as a film. It was examined to laminate or press a sealing resin in the form of a tube.
- a film-like sealing resin After sealing the semiconductor element arranged on the temporary fixing material with the sealing resin, the sealing molded product is peeled off from the temporary fixing material, and this is cured, and then rewiring is performed. Enter the layer formation process. At this time, if the cured body after curing is warped, the rewiring layer cannot be formed horizontally.
- the cured body is adsorbed by an adsorber to be leveled.
- the cured body is not sufficiently adsorbed by the adsorber, and it tends to be difficult to form a rewiring layer.
- An object of the present invention is to provide a sealing film that can satisfactorily seal an electronic component such as a semiconductor element and can form a cured body in which the amount of warping is sufficiently suppressed, and an electronic device using the film To provide parts.
- the inventors of the present invention attempted to reduce warpage by increasing the filler content in the film to bring the CTE (thermal expansion coefficient) of the sealing film closer to the CTE of the semiconductor chip.
- increasing the filler content deteriorated the fluidity, and caused another problem of generation of resin flow marks and generation of unfilled portions. Therefore, the present inventors, based on the assumption that the stress generated during the process of curing the molded product after sealing and the amount of cure shrinkage affect the warp after curing, the composition of the stress relaxation component and the sealed molded product The relationship with the amount of warpage of the cured product was examined.
- the present inventors have found that a sealed body in which a silicon chip is sealed with a sealing film containing a specific amount of a specific elastomer component has a sufficiently small amount of warping even after curing. Based on this, the present invention has been completed.
- the present invention comprises (A) an epoxy resin, (B) a curing agent, (C) one or more elastomers selected from the group consisting of butadiene rubber and silicone rubber, and (D) an inorganic filler.
- the content of the component (C) is 0.5 to 7.0% by mass based on the total mass of the component (A), the component (B), the component (C) and the component (D).
- a sealing film is provided.
- an electronic component such as a semiconductor element can be satisfactorily sealed, and a cured body in which the amount of warping is sufficiently suppressed can be formed. Formation is possible.
- the sealing film of the present invention is a liquid epoxy resin at 25 ° C. as the component (A), based on the total mass of the components (A), (B), (C) and (D). May be contained in an amount of 5% by mass or more. In this case, the curvature of the cured body can be further suppressed.
- the sealing film of the present invention may further contain (E) a curing accelerator.
- the sealing film of the present invention may contain 0.2 to 1.5% by mass of (F) an organic solvent based on the total mass of the sealing film.
- F an organic solvent
- the content of the component (D) is 65% by mass or more based on the total mass of the component (A), the component (B), the component (C), and the component (D). It may be.
- content of (D) component exists in the said range, the difference of the thermal expansion coefficient of the film for sealing and a to-be-sealed body can be decreased, and the curvature of a hardening body can be made smaller.
- the film for sealing of the present invention can have a thickness of 50 to 250 ⁇ m.
- the present invention also provides an electronic component device comprising an electronic component and the cured body of the sealing film that seals the electronic component.
- an electronic film such as a semiconductor element can be satisfactorily sealed, and a sealing film capable of forming a cured body in which the amount of warpage is sufficiently suppressed, and an electronic device using the film Parts can be provided.
- the present embodiment a mode for carrying out the present invention (hereinafter referred to as “the present embodiment”) will be described in detail.
- this invention is not limited to the following embodiment.
- the sealing film of the present embodiment includes (A) an epoxy resin (hereinafter sometimes referred to as “component (A)”), (B) a curing agent (hereinafter sometimes referred to as “component (B)”), and (C) butadiene.
- component (A) an epoxy resin
- component (B) a curing agent
- component (C) butadiene
- component (C) is 0.5 to 7.0% by mass based on the total mass of component (A), component (B), component (C) and component (D) .
- the resin film for sealing of this embodiment may further contain (E) a curing accelerator (hereinafter also referred to as “component (E)”).
- component (E) a curing accelerator
- the sealing resin film contains the component (E)
- the content of the component (C) is the total of the components (A), (B), (C), (D) and (E). It may be 0.5 to 7.0% by mass based on the mass.
- Epoxy resin (A)
- the epoxy resin can be used without particular limitation as long as it has two or more glycidyl groups in one molecule.
- the component (A) for example, bisphenol A type epoxy resin, bisphenol AP type epoxy resin, bisphenol AF type epoxy resin, bisphenol B type epoxy resin, bisphenol BP type epoxy resin, bisphenol C type epoxy resin, bisphenol E type epoxy resin Bisphenol F type epoxy resin, bisphenol G type epoxy resin, bisphenol M type epoxy resin, bisphenol S type epoxy resin, bisphenol P type epoxy resin, bisphenol PH type epoxy resin, bisphenol TMC type epoxy resin, bisphenol Z type epoxy resin, hexane Bisphenol S type epoxy resin such as diol bisphenol S diglycidyl ether, novolak phenol type epoxy resin, biphenyl type epoxy resin , Naphthalene type epoxy resins, dicyclopentadiene type epoxy resins, bixylenol type epoxy resins such as bixylenol diglycidyl ether, hydrogenated bisphenol
- a commercially available epoxy resin can also be used for component (A).
- epoxy resins for example, trade name: EXA4700 (tetrafunctional naphthalene type epoxy resin) manufactured by DIC Corporation, trade name: NC-7000 (polyfunctional solid epoxy resin containing naphthalene skeleton) manufactured by Nippon Kayaku Co., Ltd.
- Naphthalene type epoxy resins such as Nippon Kayaku Co., Ltd., trade name: EPPN-502H (trisphenol epoxy resin) and other epoxides of condensation products of phenols and aromatic aldehydes having a phenolic hydroxyl group (trisphenol type) Epoxy resin);
- liquid epoxy resin As a component, you may use a liquid epoxy resin at 25 degreeC.
- the liquid epoxy resin is not particularly limited as long as it is liquid at 25 ° C.
- liquid epoxy resins include bisphenol A, bisphenol F, biphenyl, novolac, dicyclopentadiene, polyfunctional phenol, naphthalene, aralkyl-modified, alicyclic, and alcoholic glycidyl.
- Examples include ether, glycidylamine-based resins, and glycidyl ester-based resins. These may be used alone or in combination of two or more.
- the liquid epoxy resin may be a bisphenol F type epoxy resin from the viewpoint of imparting handleability.
- the epoxy resin that is liquid at 25 ° C. refers to one having a viscosity at 25 ° C. of 400 Pa ⁇ s or less as measured with an E-type viscometer or a B-type viscometer.
- the content of the component (A) is based on the total mass of the component (A), the component (B), the component (C), and the component (D) from the viewpoint of imparting good handling properties to the sealing film. It may be 5 to 20% by mass, 5 to 15% by mass, or 6 to 11% by mass.
- content of (A) component is a (A) component and (B) component from a viewpoint which provides favorable handleability to the film for sealing.
- (C) component, (D) component and (E) component based on the total mass may be 5-20% by mass, 5-15% by mass, 6-11% by mass There may be.
- the content thereof is (A) component and (B) component from the viewpoint of imparting good handleability to the sealing film.
- (C) component and (D) component may be 5 mass% or more based on the total mass, and may be 6 mass% or more.
- the content of the liquid epoxy resin at 25 ° C. is the total mass of the component (A), component (B), component (C) and component (D).
- standard 20 mass% or less may be sufficient, 15 mass% or less may be sufficient, and 11 mass% or less may be sufficient.
- the content of the epoxy resin that is liquid at 25 ° C. is from the viewpoint of imparting good handleability to the film for sealing. 5% by mass or more, or 6% by mass or more may be used based on the total mass of the component (B), the component (C), the component (D) and the component (E).
- the content of the epoxy resin that is liquid at 25 ° C. is (A) component, (B) component, (C) component, (D) component, and (E). Based on the total mass of the components, it may be 20% by mass or less, 15% by mass or less, or 11% by mass or less.
- the curing agent can be used without particular limitation as long as it has two or more functional groups capable of reacting with a glycidyl group in one molecule.
- the functional group capable of reacting with the glycidyl group include a phenolic hydroxyl group, an amine, and an acid anhydride (such as phthalic anhydride).
- the component (B) include phenol resins, acid anhydrides, imidazole compounds, aliphatic amines, and alicyclic amines.
- one type may be used alone, or two or more types may be used in combination.
- phenol resin any known phenol resin can be used without particular limitation as long as it has two or more phenolic hydroxyl groups in one molecule.
- the phenol resin include phenols such as phenol, cresol, xylenol, resorcinol, catechol, bisphenol A, bisphenol F, and naphthols such as ⁇ -naphthol, ⁇ -naphthol, dihydroxynaphthalene, and formaldehyde, acetaldehyde, propionaldehyde, benzaldehyde.
- Resins obtained by condensation or cocondensation with aldehydes such as salicylaldehyde under acidic catalyst, biphenyl skeleton type phenol resin, paraxylylene modified phenol resin, metaxylylene / paraxylylene modified phenol resin, melamine modified phenol resin, terpene modified phenol resin , Dicyclopentadiene modified phenolic resin, cyclopentadiene modified phenolic resin, polycyclic aromatic ring modified phenolic resin, Examples include xylylene-modified naphthol resin.
- a phenol resin may be used individually by 1 type, and may be used in combination of 2 or more type.
- a commercially available phenol resin can also be used for the phenol resin.
- examples of commercially available phenol resins include trade names of DIC Corporation: Phenolite LF2882, Phenolite LF2822, Phenolite TD-2090, Phenolite TD-2149, Phenolite VH-4150, Phenolite VH4170, Mitsui Chemicals, Inc.
- the content of the component (B) may be 50 to 75 parts by mass with respect to 100 parts by mass of the component (A) from the viewpoint of reducing unreacted components (A) and (B). It may be ⁇ 60 parts by mass, or may be 60 to 65 parts by mass.
- the ratio of the component (A) and the component (B) is the ratio of the equivalent of the glycidyl group of the component (A) to the equivalent of the functional group capable of reacting with the glycidyl group in the component (B) (equivalent of the glycidyl group in the epoxy resin /
- the equivalent of the functional group that reacts with the glycidyl group in the curing agent) may be 0.7 to 2.0, 0.8 to 1.8, or 0.9 to 1.7. May be. When this ratio is in the above range, the unreacted component (A) or component (B) is decreased, and desired cured film properties tend to be easily obtained when the sealing film is cured.
- the (C) elastomer is preferably at least one elastomer selected from the group consisting of butadiene rubber and silicone rubber from the viewpoint of dispersibility and solubility.
- examples of such component (C) include styrene butadiene particles, silicone powder, silicone oligomer, and silicone rubber subjected to resin modification with silicone resin. These may be used alone or in combination of two or more.
- core-shell type particles containing a skeleton derived from butadiene or silicone as a block copolymer or a graft copolymer are preferred.
- C Some commercially available components (C) are sold not in the form of an elastomer but in a liquid epoxy resin in advance, and these can be used without any problem.
- examples of those in which the elastomer is previously dispersed in the liquid epoxy resin include trade names: MX-136, MX-217, MX-267, and MX-965 manufactured by Kaneka Corporation.
- the content of the component (C) may be 0.5 to 7.0% by mass based on the total mass of the components (A), (B), (C), and (D), It may be 1.0 to 6.0% by mass or less, 1.0 to 5.7% by mass, or 1.0 to 4.6% by mass.
- content of a component is the said range, when hardening the sealing molding which sealed electronic components, such as a semiconductor element, with the film for sealing, it fully suppresses the curvature of a hardening body. And a subsequent rewiring layer can be formed.
- content of (C) component is (A) component, (B) component, (C) component, (D) component, and (E) component.
- the average particle size of component (C) can be used without any particular limitation.
- the average particle size of component (C) may be 50 ⁇ m or less, or 20 ⁇ m or less. It may be 0 ⁇ m or less.
- the average particle size of the component (C) may be 0.05 ⁇ m or more, 0.1 ⁇ m or more, 0.5 ⁇ m or more, 1.0 ⁇ m It may be the above.
- Inorganic filler As an inorganic filler, a conventionally well-known inorganic filler can be used and it is not limited to a specific thing.
- the component (D) include barium sulfate, barium titanate, amorphous silica, crystalline silica, fused silica, spherical silica, talc, clay, magnesium carbonate, calcium carbonate, aluminum oxide, aluminum hydroxide, silicon nitride, An example is aluminum nitride.
- component (D) the desired cured film characteristics can be obtained because it is easy to improve dispersibility in the resin and to suppress sedimentation in the varnish by surface modification or the like, and since it has a relatively small coefficient of thermal expansion. Since it is easy to obtain, silicas may be used.
- (D) Component may be subjected to surface modification.
- the method of surface modification is not particularly limited. For example, even if a method using a silane coupling agent is used because the surface modification is simple and there are many types of functional groups, and it is easy to impart desired characteristics. Good.
- the silane coupling agent include alkyl silane, alkoxy silane, vinyl silane, epoxy silane, amino silane, acrylic silane, methacryl silane, mercapto silane, sulfide silane, isocyanate silane, sulfur silane, styryl silane, alkyl chloro silane, and the like.
- silane coupling agent examples include methyltrimethoxysilane, dimethyldimethoxysilane, trimethylmethoxysilane, methyltriethoxysilane, methyltriphenoxysilane, ethyltrimethoxysilane, n-propyltrimethoxysilane, diisopropyldimethoxysilane, isobutyltrimethoxysilane.
- the content of the component (D) may be 65 to 95% by mass based on the total mass of the components (A), (B), (C) and (D), and 75 to 90% by mass. % Or 80 to 90% by mass.
- content of the component (D) is 65% by mass or more, the thermal expansion coefficient of the sealing film can be effectively reduced, and the warpage of the semiconductor device or the electronic component device tends to be reduced.
- content of (D) component is 95 mass% or less, it exists in the tendency for the crack of the film for sealing or the raise of the melt viscosity of the film for sealing to be suppressed in the drying process at the time of coating.
- the content of the component (D) is 90% by mass or less, this tendency is further increased.
- the content of the component (D) may be 65% by mass or more. 70 mass% or more may be sufficient and 80 mass% or more may be sufficient.
- content of (D) component is (A) component, (B) component, (C) component, (D) component, and (E) component. 65 to 95% by mass, 75 to 90% by mass, or 80 to 90% by mass based on the total mass.
- the thermal expansion coefficient of the sealing film can be effectively reduced, and the warpage of the semiconductor device or the electronic component device tends to be reduced.
- content of (D) component is 95 mass% or less, it exists in the tendency for the crack of the film for sealing or the raise of the melt viscosity of the film for sealing to be suppressed in the drying process at the time of coating.
- the content of the component (D) is 90% by mass or less, this tendency is further increased.
- the content of the component (D) may be 65% by mass or more. 70 mass% or more may be sufficient and 80 mass% or more may be sufficient.
- the average particle diameter of the component (D) may be 0.01 to 50 ⁇ m, 0.1 to 25 ⁇ m, or 0.3 to 10 ⁇ m.
- the average particle diameter is 0.01 ⁇ m or more, the aggregation of the inorganic filler is suppressed, and the inorganic filler tends to be easily dispersed.
- the average particle size is 50 ⁇ m or less, sedimentation of the inorganic filler in the varnish is suppressed, and the production of the sealing film tends to be easy.
- the average particle diameter is a particle diameter at a point corresponding to a volume of 50% when a cumulative frequency distribution curve based on the particle diameter is obtained with the total volume of the particles being 100%, and a particle size distribution measuring apparatus using a laser diffraction scattering method. Etc. can be measured.
- the sealing film of this embodiment may further contain (E) a curing accelerator.
- the curing accelerator can be used without particular limitation, and may be an amine-based or phosphorus-based curing accelerator.
- amine-based curing accelerators include imidazole compounds, aliphatic amines, aromatic amines, modified amines, and polyamide resins.
- phosphorus curing accelerator include organic phosphorus compounds such as phosphine oxide, phosphonium salt, and diphosphine.
- the component (E) may be an imidazole compound from the viewpoint of being rich in derivatives and easily obtaining a desired activation temperature.
- the content of component (E) may be 0.01 to 5% by mass or 0.1 to 3% by mass based on the total mass of component (A) and component (B). 0.3 to 1.5% by mass.
- the content of the component (E) is 0.01% by mass or more, a sufficient curing acceleration effect is easily obtained.
- the content of the component (E) is 5% by mass or less, the progress of curing during the drying process during storage or during storage is suppressed, and the molding accompanying cracking of the sealing film or an increase in melt viscosity There is a tendency for defects to decrease.
- the sealing film of this embodiment may further contain (F) an organic solvent (hereinafter sometimes referred to as component (F)).
- component (F) an organic solvent
- a conventionally well-known organic solvent can be used for (F) component.
- the component (F) is preferably one that can dissolve components other than the component (D).
- components other than the component (D) For example, aliphatic hydrocarbons, aromatic hydrocarbons, terpenes, halogens, esters, ketones, alcohols, aldehydeskind.
- the component (F) may be an ester, a ketone, or an alcohol from the viewpoint that the environmental load is small and the component (A) and the component (B) are easily dissolved.
- the component (F) may be a ketone from the viewpoint that the component (A) and the component (B) are particularly easily dissolved.
- the ketones acetone, methyl ethyl ketone, and methyl isobutyl ketone may be used from the viewpoint of low volatility at room temperature and easy removal during drying.
- the content of the component (F) contained in the sealing film may be 0.2 to 1.5% by mass, based on the total mass of the sealing film, and 0.3 to 1% by mass. There may be.
- the content of the component (F) is 0.2% by mass or more based on the total mass of the sealing film, defects such as film cracking are suppressed, and the minimum melt viscosity is suppressed to a low level, so that satisfactory embedding is achieved. There is a tendency to gain.
- the content of the component (F) is 1.5% by mass or less based on the total mass of the sealing film, the tackiness of the sealing film is suppressed, and the handleability of the film is good. In addition to being obtained, there is a tendency that problems such as foaming due to volatilization of the organic solvent hardly occur during thermosetting.
- the content of the component (F) contained in the sealing film can be calculated by the method used in the examples of this specification.
- additives can be used as long as the effects of the present invention are not impaired.
- Specific examples of such additives include pigments, dyes, mold release agents, antioxidants, surface tension adjusting agents and the like.
- you may contain a silicone oil in order to improve the dispersibility and solubility of said each component.
- the sealing film of the present embodiment can be manufactured, for example, as follows. Prepare the varnish which mixed the above-mentioned (A) component, the (B) component, the (C) component, the (D) component, and the (E) component and the additive as necessary in the above-mentioned (F) organic solvent. .
- the mixing method is not particularly limited, for example, a mill, a mixer, or a stirring blade can be used.
- the component (F) can assist in dissolving or dispersing the component (A), the component (B), the component (C), and the component (D) according to this embodiment to form a varnish, or a varnish. .
- the resin film for sealing contains (E) component
- (F) component is (A) component which concerns on this embodiment, (B) component, (C) component, (D) component, and (E )
- the component can be dissolved or dispersed to form a varnish, or the varnish can be assisted.
- the varnish produced in this manner is applied to a film-like support and then heated and dried by hot air blowing or the like.
- the film-like support for example, a polymer film, a metal foil or the like can be used.
- polystyrene film examples include polyolefin films such as polyethylene films, polypropylene films, and polyvinyl chloride films, polyester films such as polyethylene terephthalate films, polycarbonate films, acetylcellulose films, and tetrafluoroethylene films.
- polystyrene film examples include polyethylene terephthalate films, polycarbonate films, acetylcellulose films, and tetrafluoroethylene films.
- metal foil examples include copper and aluminum.
- the thickness of the film-like support is not particularly limited, and may be 2 to 200 ⁇ m from the viewpoint of workability and drying property.
- the thickness of the film-like support is 2 ⁇ m or more, there is a tendency that problems such as cutting during coating or bending due to the weight of the varnish are suppressed.
- the thickness of the support is 200 ⁇ m or less, it is easy to suppress problems that hinder solvent drying in the varnish mainly in a dryer in which hot air is blown from both the coated surface and the back surface.
- the coating method used for coating is not particularly limited, and for example, a coating device such as a comma coater, a bar coater, a kiss coater, a roll coater, a gravure coater, a die coater, or the like can be used.
- a coating device such as a comma coater, a bar coater, a kiss coater, a roll coater, a gravure coater, a die coater, or the like can be used.
- the method of heating and drying the varnish applied to the support is not particularly limited, and examples thereof include hot air blowing.
- Examples of the heat drying conditions include heating at 100 to 140 ° C. for 5 to 20 minutes.
- the sealing film of this embodiment is formed by removing the component (F).
- the varnish can be dried so that the (F) component remaining in the film has the above-described content.
- the sealing film of this embodiment may have a film thickness of 50 to 250 ⁇ m. Also, a plurality of sealing films of this embodiment can be laminated to produce a sealing film exceeding 250 ⁇ m.
- a layer for the purpose of protection may be formed on the sealing film formed on the film-like support.
- the handleability tends to be improved.
- a layer for protection on the sealing film for example, even when the sealing film is wound up, avoid the problem that the sealing film sticks to the back surface of the film-like support. Can do.
- a polymer film or a metal foil can be used as the layer for the purpose of protection.
- the polymer film include a polyolefin film such as a polyethylene film, a polypropylene film, and a polyvinyl chloride film, a polyester film such as a polyethylene terephthalate film, a polycarbonate film, an acetylcellulose film, and a tetrafluoroethylene film.
- the metal foil include copper or aluminum.
- FIG. 1 is a schematic cross-sectional view for explaining an embodiment of a method for manufacturing a semiconductor device.
- the method according to the present embodiment includes a support 1 and a sealing film 2 provided on the support 1 on a semiconductor element 20 to be embedded arranged side by side on a substrate 30 having a temporary fixing material 40.
- FIG. 1C an electronic component device including a semiconductor element 20 embedded in a cured product 2a obtained by sealing a semiconductor element with a sealing film by a laminating method is obtained.
- the laminator to be used is not particularly limited, and examples thereof include a roll type and a balloon type laminator.
- the laminator may be a balloon type capable of vacuum pressurization from the viewpoint of embedding.
- the laminating temperature is usually below the softening point of the support. Further, the laminating temperature is preferably near the minimum melt viscosity of the sealing film.
- the pressure at the time of lamination varies depending on the size and density of the semiconductor element or electronic component to be embedded, and may be in the range of 0.2 to 1.5 MPa or in the range of 0.3 to 1.0 MPa.
- the laminating time is not particularly limited, and may be 20 to 600 seconds, 30 to 300 seconds, or 40 to 120 seconds.
- Curing can be performed, for example, in an air atmosphere or an inert gas atmosphere.
- the curing temperature is not particularly limited, and may be 80 to 280 ° C., 100 to 240 ° C., or 120 to 200 ° C. If the curing temperature is 80 ° C. or higher, the curing of the sealing film proceeds sufficiently and the occurrence of defects can be further suppressed. When the curing temperature is 280 ° C. or lower, the occurrence of heat damage to other materials tends to be further suppressed.
- the curing time is not particularly limited, and may be 30 to 600 minutes, 45 to 300 minutes, or 60 to 240 minutes. If the curing time is within these ranges, curing of the sealing film proceeds sufficiently, and better production efficiency is obtained. A plurality of curing conditions may be combined.
- sealing film and the electronic component device according to the present invention have been described above.
- the present invention is not necessarily limited to the above-described embodiments, and modifications may be made as appropriate without departing from the spirit of the present invention.
- an electronic component other than the semiconductor element for example, it can be applied to a wiring board material.
- Epoxy resin A1 Bisphenol F type epoxy resin (trade name: grade 806 manufactured by Mitsubishi Chemical Corporation, epoxy equivalent: 160, liquid at 25 ° C.)
- Epoxy resin A2 Naphthalene skeleton-containing polyfunctional solid epoxy resin (trade name: EXA-4750, epoxy equivalent: 182 manufactured by DIC Corporation)
- Epoxy resin A3 epoxy resin C4: bisphenol F type epoxy resin containing butadiene elastomer with an average particle size of 0.1 ⁇ m (trade name: MX-136 manufactured by Kaneka Corporation, butadiene elastomer content 25 mass%, liquid at 25 ° C.)
- Epoxy resin A4 (elastomer C5) bisphenol F type epoxy resin and bisphenol A type epoxy resin containing butadiene elastomer having an average particle size of 0.2 ⁇ m (trade name: MX-267 manufactured by Kaneka Corporation, butadiene elastomer content: 37% by mass,
- Example 1 673.2 g of organic solvent F was put in a 10 L polyethylene container, 3962 g of inorganic filler D3 was added thereto, and inorganic filler D3 was dispersed with a stirring blade.
- 100 g of epoxy resin A1 which is liquid at 25 ° C. 70 g of epoxy resin A2 which is not liquid at 25 ° C.
- 180 g of bisphenol F-type epoxy resin A3 containing 0.1 ⁇ m butadiene elastomer 180 g of bisphenol F-type epoxy resin A3 containing 0.1 ⁇ m butadiene elastomer
- At 25 ° C. 183 g of a curing agent B1 that does not show liquid state was added and stirred.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- the sealing films having a film thickness of 185 ⁇ m and 225 ⁇ m were laminated so that the two sealing films were in contact with each other, and were bonded together with a vacuum pressure laminator under the following conditions.
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- Example 2 Into a 10 L polyethylene container, 1945 g of organic solvent F was added, 9700 g of inorganic filler D1 and 1712 g of D2 were added thereto, and inorganic fillers D1 and D2 were dispersed with stirring blades. In this dispersion, 134 g of epoxy resin A2 that does not show liquid at 25 ° C., 1206 g of bisphenol F type epoxy resin A3 containing 0.1 ⁇ m butadiene elastomer with a particle size of 106 g, no liquid at 25 ° C. 684 g of curing agent B2 was added and stirred. After visually confirming that the curing agent B2 that does not show liquid at 25 ° C.
- This varnish-like epoxy resin composition was applied on a support (38 ⁇ m thick polyethylene terephthalate) using a coating machine under the following conditions, and a film for sealing having a film thickness of 185 ⁇ m, 200 ⁇ m and 225 ⁇ m was obtained. Each was produced.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- Example 3 Into a 10 L polyethylene container, 1217 g of organic solvent F was added, 6070 g of inorganic filler D1 and 1071 g of D2 were added thereto, and inorganic fillers D1 and D2 were dispersed with stirring blades. In this dispersion, 808 g of bisphenol F type epoxy resin A4 containing 0.2 ⁇ m particle size butadiene elastomer, 90 g of phenol novolac type epoxy resin A6 containing butadiene elastomer, 66 g of silicone powder C1, and a curing agent that does not show liquid at 25 ° C. 369 g of B2 was added and stirred.
- organic solvent F 6070 g of inorganic filler D1 and 1071 g of D2 were added thereto, and inorganic fillers D1 and D2 were dispersed with stirring blades.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- Example 4 100 g of organic solvent F was put in a 1 L polyethylene container, 713 g of inorganic filler D1 and 126 g of D2 were added thereto, and inorganic fillers D1 and D2 were dispersed with a stirring blade. To this dispersion, 104 g of bisphenol F type epoxy resin A3 containing butadiene elastomer having a particle size of 0.1 ⁇ m and 52 g of curing agent B2 that does not show a liquid state at 25 ° C. were added and stirred. After visually confirming that the curing agent B2 that does not show liquid at 25 ° C. was dissolved, 0.4 g of the curing accelerator E was added to the dispersion, followed by further stirring for 1 hour.
- This dispersion was filtered through nylon # 200 mesh (opening 75 ⁇ m), and the filtrate was collected to prepare a varnish-like epoxy resin composition.
- This varnish-like epoxy resin composition was applied on a support (38 ⁇ m thick polyethylene terephthalate) using a coating machine under the following conditions, and a film for sealing having a film thickness of 185 ⁇ m, 200 ⁇ m and 225 ⁇ m was obtained. Each was produced.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- Example 5 100 g of organic solvent F was put in a 1 L polyethylene container, 713 g of inorganic filler D1 and 126 g of D2 were added thereto, and inorganic fillers D1 and D2 were dispersed with a stirring blade. To this dispersion, 34 g of epoxy resin A1 which is liquid at 25 ° C., 71 g of bisphenol F type epoxy resin A4 containing butadiene elastomer having a particle size of 0.2 ⁇ m, and 52 g of curing agent B2 which does not show liquid at 25 ° C. are added. Stir. After visually confirming that the curing agent B2 that does not show liquid at 25 ° C.
- varnish-like epoxy resin composition is applied on a support (38 ⁇ m-thick polyethylene terephthalate) using a coating machine under the following conditions, and the film-like epoxy resin composition has a film thickness of 185 ⁇ m, 200 ⁇ m and 225 ⁇ m. Each thing was produced.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- Example 6 Into a 1 L polyethylene container, 41 g of organic solvent F was added, 204 g of inorganic filler D1 and 36 g of D2 were added thereto, and inorganic fillers D1 and D2 were dispersed with a stirring blade. In this dispersion, 0.2 g of epoxy resin A1 which is liquid at 25 ° C., 30 g of silicone elastomer-containing bisphenol F type epoxy resin and bisphenol A type epoxy resin (epoxy resin A5), and no liquid state at 25 ° C. 15 g of curing agent B2 was added and stirred. After visually confirming that the curing agent B2 that does not show liquid at 25 ° C.
- epoxy resin A1 which is liquid at 25 ° C.
- silicone elastomer-containing bisphenol F type epoxy resin and bisphenol A type epoxy resin epoxy resin A5
- This varnish-like epoxy resin composition was applied on a support (38 ⁇ m thick polyethylene terephthalate) using a coating machine under the following conditions, and a film for sealing having a film thickness of 185 ⁇ m, 200 ⁇ m and 225 ⁇ m was obtained. Each was produced.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- Example 7 100 g of organic solvent F was put in a 1 L polyethylene container, 713 g of inorganic filler D1 and 126 g of D2 were added thereto, and inorganic fillers D1 and D2 were dispersed with a stirring blade. To this dispersion, 78 g of epoxy resin A1 showing liquid at 25 ° C., 26 g of silicone powder C2, and 53 g of curing agent B2 showing no liquid at 25 ° C. were added and stirred. After visually confirming that the curing agent B2 that does not show liquid at 25 ° C. was dissolved, 0.3 g of the curing accelerator E was added to the dispersion, followed by further stirring for 1 hour.
- This dispersion was filtered through nylon # 200 mesh (opening 75 ⁇ m), and the filtrate was collected to prepare a varnish-like epoxy resin composition.
- This varnish-like epoxy resin composition was applied on a support (38 ⁇ m thick polyethylene terephthalate) using a coating machine under the following conditions, and a film for sealing having a film thickness of 185 ⁇ m, 200 ⁇ m and 225 ⁇ m was obtained. Each was produced.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- Example 8 100 g of organic solvent F was put in a 1 L polyethylene container, 713 g of inorganic filler D1 and 126 g of D2 were added thereto, and inorganic fillers D1 and D2 were dispersed with a stirring blade. To this dispersion liquid, 78 g of epoxy resin A1 showing liquid at 25 ° C., 26 g of silicone powder C3, and 53 g of curing agent B2 showing no liquid at 25 ° C. were added and stirred. After visually confirming that the curing agent B2 that does not show liquid at 25 ° C. was dissolved, 0.3 g of the curing accelerator E was added to the dispersion, followed by further stirring for 1 hour.
- This dispersion was filtered through nylon # 200 mesh (opening 75 ⁇ m), and the filtrate was collected to prepare a varnish-like epoxy resin composition.
- This varnish-like epoxy resin composition was applied on a support (38 ⁇ m thick polyethylene terephthalate) using a coating machine under the following conditions, and a film for sealing having a film thickness of 185 ⁇ m, 200 ⁇ m and 225 ⁇ m was obtained. Each was produced.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- Example 9 100 g of organic solvent F was put in a 1 L polyethylene container, 713 g of inorganic filler D1 and 126 g of D2 were added thereto, and inorganic fillers D1 and D2 were dispersed with a stirring blade. To this dispersion, 78 g of epoxy resin A1 showing liquid at 25 ° C., 26 g of silicone powder C1, and 53 g of curing agent B2 showing no liquid at 25 ° C. were stirred. After visually confirming that the curing agent B2 that does not show liquid at 25 ° C. was dissolved, 0.3 g of the curing accelerator E was added to the dispersion, followed by further stirring for 1 hour.
- This dispersion was filtered through nylon # 200 mesh (opening 75 ⁇ m), and the filtrate was collected to prepare a varnish-like epoxy resin composition.
- This varnish-like epoxy resin composition was applied on a support (38 ⁇ m thick polyethylene terephthalate) using a coating machine under the following conditions, and a film for sealing having a film thickness of 185 ⁇ m, 200 ⁇ m and 225 ⁇ m was obtained. Each was produced.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- This dispersion was filtered through nylon # 200 mesh (opening 75 ⁇ m), and the filtrate was collected to prepare a varnish-like epoxy resin composition.
- This varnish-like epoxy resin composition was applied on a support (38 ⁇ m thick polyethylene terephthalate) using a coating machine under the following conditions, and a film for sealing having a film thickness of 185 ⁇ m, 200 ⁇ m and 225 ⁇ m was obtained. Each was produced.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- This dispersion was filtered through nylon # 200 mesh (opening 75 ⁇ m), and the filtrate was collected to prepare a varnish-like epoxy resin composition.
- This varnish-like epoxy resin composition was applied on a support (38 ⁇ m thick polyethylene terephthalate) using a coating machine under the following conditions, and a film for sealing having a film thickness of 185 ⁇ m, 200 ⁇ m and 225 ⁇ m was obtained. Each was produced.
- ⁇ Coating head method Comma ⁇ Coating and drying speed: 1 m / min ⁇ Drying conditions (temperature / furnace length): 110 ° C./3.3 m, 130 ° C./3.3 m, 140 ° C./3.3 m
- sealing films having a film thickness of 370 ⁇ m and 450 ⁇ m were prepared.
- the mass of the support cut into a 5 cm square separately measured and the mass of the aluminum cup are subtracted, and the sealing before heating and after heating is performed.
- the mass of each film was determined.
- the value which deducted the mass of the sealing film after a heating from the mass of the sealing film before a heating was made into the quantity of the organic solvent contained in the sealing film.
- the ratio of the quantity of the organic solvent with respect to the mass of the film for sealing before a heating was made into the content rate of the organic solvent.
- ⁇ Evaluation method> Method for evaluating warpage of cured product when sealing silicon chip using sealing film to make eWLB package
- sealing film two sealing films with a thickness of 185 ⁇ m are stacked, A film having a thickness of 370 ⁇ m was used.
- a silicon chip having a thickness of 350 ⁇ m on a SUS plate was sealed using a sealing film to prepare an 8-inch sized eWLB package.
- the sealing film produced by the method shown in the examples was cut into a circle having a diameter of 20 cm. The entire support was peeled off, placed on a silicon chip placed on a SUS plate, and the chip was sealed under the following conditions using a compression molding apparatus to produce a sealed body.
- FIG. 2 shows a layout of silicon chips in this measurement system.
- a 7.3 mm square silicon chip 60 and a 3 mm square silicon chip 70 are arranged on the SUS plate 50 as shown in FIG.
- Compression mold equipment Product name WCM-300 manufactured by Apic Yamada Co., Ltd.
- Compression mold molding temperature 140 °C
- Compression mold pressure 2.5MPa -Compression mold time: 10 minutes
- the produced sealing body was hardened on the following conditions, and the hardening body was produced.
- ⁇ Oven Trade name SAFETY OVEN SPH-201 manufactured by ESPEC Corporation
- Oven temperature 140 °C -Time: 120 minutes
- the amount of warpage of the produced cured body was measured using the following apparatus.
- Warp measurement stage device name Combs Co., Ltd., trade name CP-500 -Warp measurement laser beam device name: Product name LK-030 manufactured by Keyence Corporation
- the center portion of the surface of the cured body was set to 0 (reference point), and the height of the end portion was measured as the amount of warpage, and evaluated based on the following evaluation criteria.
- Laminator Vacuum pressure laminator (trade name MVLP-500, manufactured by Meiki Seisakusho Co., Ltd.) ⁇ Lamination temperature: 90 °C ⁇ Lamination pressure: 0.5 MPa -Vacuum drawing time: 30 seconds-Laminating time: 40 seconds The produced sealing body was hardened on the following conditions, and the hardening body was produced.
- Oven Trade name SAFETY OVEN SPH-201 manufactured by ESPEC Corporation
- Oven temperature 140 °C -Time: 120 minutes
- the amount of warpage of the produced cured body was measured using the following apparatus.
- Warp measurement stage device name Combs Co., Ltd., trade name CP-500 -Warp measurement laser beam device name: Product name LK-030 manufactured by Keyence Corporation
- the center of the wafer surface was set to 0 (reference point), the height of the wafer edge was measured as a warp, and evaluated based on the following evaluation criteria.
- Warp measurement stage device name Combs Co., Ltd., trade name CP-500 -Warp measurement laser beam device name: Product name LK-030 manufactured by Keyence Corporation
- the center part of the separated silicon wafer surface was set to 0 (reference point), and the height of the end part was measured as a warp, and evaluated based on the following evaluation criteria.
- Example 1 and Comparative Examples 1 and 2 shown in Table 2 it was found that the desired effect can be obtained with respect to the warpage of the cured body evaluated by the eWLB package by increasing the addition amount of the elastomer component. Further, from the results of Examples 2 and 3 and Comparative Example 2, it was found that the desired effect can be obtained by increasing the amount of the elastomer added with respect to the warpage of the cured body evaluated with a 12-inch silicon wafer.
- the elastomer component is added to the sealing film in an amount of 0.5 to 7.0% by mass based on the total mass of the components (A), (B), (C) and (D). By doing, it turned out that the curvature amount of a hardening body can be suppressed.
- SYMBOLS 1 Support body, 2 ... Sealing film, 2a ... Hardened
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Abstract
Description
(A)エポキシ樹脂としては、1分子中に2個以上のグリシジル基を有するものであれば特に制限なく用いることができる。(A)成分としては、例えば、ビスフェノールA型エポキシ樹脂、ビスフェノールAP型エポキシ樹脂、ビスフェノールAF型エポキシ樹脂、ビスフェノールB型エポキシ樹脂、ビスフェノールBP型エポキシ樹脂、ビスフェノールC型エポキシ樹脂、ビスフェノールE型エポキシ樹脂、ビスフェノールF型エポキシ樹脂、ビスフェノールG型エポキシ樹脂、ビスフェノールM型エポキシ樹脂、ビスフェノールS型エポキシ樹脂、ビスフェノールP型エポキシ樹脂、ビスフェノールPH型エポキシ樹脂、ビスフェノールTMC型エポキシ樹脂、ビスフェノールZ型エポキシ樹脂、ヘキサンジオールビスフェノールSジグリシジルエーテル等のビスフェノールS型エポキシ樹脂、ノボラックフェノール型エポキシ樹脂、ビフェニル型エポキシ樹脂、ナフタレン型エポキシ樹脂、ジシクロペンタジエン型エポキシ樹脂、ビキシレノールジグリシジルエーテル等のビキシレノール型エポキシ樹脂、水添ビスフェノールAグリシジルエーテル等の水添ビスフェノールA型エポキシ樹脂、及びそれらの二塩基酸変性ジグリシジルエーテル型エポキシ樹脂、脂肪族エポキシ樹脂等が挙げられる。(A)成分は、1種を単独で用いてもよく、2種以上を併用して用いてもよい。
(B)硬化剤としては、グリシジル基と反応できる官能基を1分子中に2個以上有するものであれば特に制限なく用いることができる。グリシジル基と反応できる官能基としては、例えば、フェノール性水酸基、アミン、酸無水物(無水フタル酸等)が挙げられる。(B)成分としては、例えば、フェノール樹脂、酸無水物、イミダゾール化合物、脂肪族アミン、脂環族アミンが挙げられる。(B)成分は、1種を単独で用いてもよく、2種以上を併用して用いてもよい。
(C)エラストマーとしては、分散性・溶解性の観点から、ブタジエン系ゴム及びシリコーン系ゴムからなる群より選択される1種以上のエラストマーが好ましい。このような(C)成分としては、例えば、スチレンブタジエン粒子、シリコーンパウダ、シリコーンオリゴマー、シリコーンレジンによる樹脂改質を行ったシリコーンゴム等が挙げられる。これらは、1種を単独で用いてもよく、2種類以上を併用してもよい。本実施形態においては、ブタジエン又はシリコーンに由来する骨格をブロック共重合体、又はグラフト共重合体として含有するコアシェル型の粒子が好ましい。
(D)無機充填材としては、従来公知の無機充填材が使用でき、特定のものに限定されない。(D)成分としては、例えば、硫酸バリウム、チタン酸バリウム、無定形シリカ、結晶性シリカ、溶融シリカ、球状シリカ、タルク、クレー、炭酸マグネシウム、炭酸カルシウム、酸化アルミニウム、水酸化アルミニウム、窒化ケイ素、窒化アルミニウムが挙げられる。(D)成分としては、表面改質等により、樹脂中への分散性の向上及びワニス中での沈降抑制がしやすいこと、また比較的小さい熱膨張率を有することから所望の硬化膜特性が得られやすいことから、シリカ類であってもよい。
本実施形態の封止用フィルムは、(E)硬化促進剤を更に含有してもよい。(E)硬化促進剤としては、特に制限なく用いることができ、アミン系又はリン系の硬化促進剤であってもよい。アミン系の硬化促進剤としては、例えば、イミダゾール化合物、脂肪族アミン、芳香族アミン、変性アミン、ポリアミド樹脂等が挙げられる。リン系の硬化促進剤としては、例えば、ホスフィンオキサイド、ホスホニウム塩、ダイホスフィン等の有機リン化合物が挙げられる。これらの硬化促進剤の中でも、誘導体が豊富であり、所望の活性温度を得やすい観点から、(E)成分はイミダゾール化合物であってもよい。
本実施形態の封止用フィルムには、(F)有機溶剤(以下、(F)成分という場合もある。)を更に含有させることができる。(F)成分は、従来公知の有機溶剤が使用できる。(F)成分は、(D)成分以外の成分を溶解できるものが好ましく、例えば、脂肪族炭化水素類、芳香族炭化水素類、テルペン類、ハロゲン類、エステル類、ケトン類、アルコール類、アルデヒド類が挙げられる。(F)成分は、環境負荷が小さく、(A)成分及び(B)成分を溶解しやすいという観点から、エステル類、ケトン類、アルコール類であってもよい。(F)成分としては、これらの中でも、(A)成分及び(B)成分を特に溶解しやすいという観点から、ケトン類であってもよい。ケトン類としては、中でも、室温での揮発が少なく、乾燥時に除去しやすいという観点から、アセトン、メチルエチルケトン、メチルイソブチルケトンであってもよい。
(A成分:エポキシ樹脂)
エポキシ樹脂A1:ビスフェノールF型エポキシ樹脂(三菱化学株式会社製の商品名:グレード806、エポキシ当量:160、25℃において液状)
エポキシ樹脂A2:ナフタレン骨格含有多官能固形エポキシ樹脂(DIC株式会社製の商品名:EXA-4750、エポキシ当量:182)
エポキシ樹脂A3(エラストマーC4):平均粒径0.1μmブタジエンエラストマー含有ビスフェノールF型エポキシ樹脂(株式会社カネカ製の商品名:MX-136、ブタジエンエラストマー含有量25質量%、25℃において液状)
エポキシ樹脂A4(エラストマーC5):平均粒径0.2μmブタジエンエラストマー含有ビスフェノールF型エポキシ樹脂及びビスフェノールA型エポキシ樹脂(株式会社カネカ製の商品名:MX-267、ブタジエンエラストマー含有量37質量%、25℃において液状)
エポキシ樹脂A5(エラストマーC6):平均粒径0.1μmシリコーンエラストマー含有ビスフェノールF型エポキシ樹脂及びビスフェノールA型エポキシ樹脂(株式会社カネカ製の商品名:MX-965、シリコーンエラストマー含有量25質量%、25℃において液状)
エポキシ樹脂A6(エラストマーC7):平均粒径0.1μmブタジエンエラストマー含有フェノールノボラック型エポキシ樹脂(株式会社カネカ製の商品名:MX-217、ブタジエンエラストマー含有量25質量%、25℃において液状)
(B成分:硬化剤)
硬化剤B1:フェノールノボラック(旭有機材工業株式会社製の商品名:PAPS-PN2、フェノール性水酸基当量:104)
硬化剤B2:ナフタレンジオールノボラック(新日鉄住金化学株式会社製の商品名:SN-395)
(C成分:エラストマー)
エラストマーC1:シリコーンパウダ(信越化学工業株式会社製の商品名:KMP-605、平均粒径2μm)
エラストマーC2:シリコーンパウダ(信越化学工業株式会社製の商品名:KMP-600、平均粒径5μm)
エラストマーC3:シリコーンパウダ(信越化学工業株式会社製の商品名:KMP-602、平均粒径30μm)
(D成分:無機充填材)
無機充填材D1:シリカ(電気化学工業株式会社製の商品名:FB-5SDC、フェニルアミノシラン処理、平均粒径5.0μm)
無機充填材D2:シリカ(電気化学工業株式会社製の商品名:SFP-20M、フェニルアミノシラン処理、平均粒径0.5μm)
無機充填材D3:シリカ(株式会社アドマテックス製の商品名:SX-E2、フェニルアミノシラン処理、/平均粒径5.8μm)
(E成分:硬化促進剤)
硬化促進剤E:イミダゾール(四国化成工業株式会社製の商品名:2P4MZ)
(F成分:有機溶剤)
有機溶剤F:メチルエチルケトン
(実施例1)
10Lのポリエチレン容器に有機溶剤Fを673.2g入れ、これに無機充填材D3を3962g加え、撹拌羽で無機充填材D3を分散させた。この分散液に、25℃にて液状を示すエポキシ樹脂A1を100g、25℃にて液状を示さないエポキシ樹脂A2を70g、粒径0.1μmブタジエンエラストマー含有ビスフェノールF型エポキシ樹脂A3を180g、及び25℃にて液状を示さない硬化剤B1を183g加えて撹拌した。25℃にて液状を示さない硬化剤B1が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを2.1g加え、更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過し、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmの封止用フィルムをそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
・ラミネーター装置:真空加圧ラミネーター(株式会社名機製作所製の商品名MVLP-500)
・ラミネート温度:90℃
・ラミネート圧力:0.15MPa
・真空引き時間:10秒
・ラミネート時間:5秒
10Lのポリエチレン容器に有機溶剤Fを1945g入れ、これに無機充填材D1を9700g、D2を1712g加え、撹拌羽で無機充填材D1及びD2を分散させた。この分散液に、25℃にて液状を示さないエポキシ樹脂A2を134g、粒径0.1μmブタジエンエラストマー含有ビスフェノールF型エポキシ樹脂A3を1206g、シリコーンパウダC1を106g、25℃にて液状を示さない硬化剤B2を684g加えて撹拌した。25℃にて液状を示さない硬化剤B2が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを5.4g加え、更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過し、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmの封止用フィルムをそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
10Lのポリエチレン容器に有機溶剤Fを1217g入れ、これに無機充填材D1を6070g、D2を1071g加え、撹拌羽で無機充填材D1及びD2を分散させた。この分散液に、粒径0.2μmブタジエンエラストマー含有ビスフェノールF型エポキシ樹脂A4を808g、ブタジエンエラストマー含有フェノールノボラック型エポキシ樹脂A6を90g、シリコーンパウダC1を66g、25℃にて液状を示さない硬化剤B2を369g加えて撹拌した。25℃にて液状を示さない硬化剤B2が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを2.7g加え、更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過し、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmの封止用フィルムをそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
1Lのポリエチレン容器に有機溶剤Fを100g入れ、これに無機充填材D1を713g、D2を126g加え、撹拌羽で無機充填材D1及びD2を分散させた。この分散液に、粒径0.1μmブタジエンエラストマー含有ビスフェノールF型エポキシ樹脂A3を104g、25℃にて液状を示さない硬化剤B2を52g加えて撹拌した。25℃にて液状を示さない硬化剤B2が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを0.4g加え、更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過し、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmの封止用フィルムをそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
1Lのポリエチレン容器に有機溶剤Fを100g入れ、これに無機充填材D1を713g、D2を126g加え、撹拌羽で無機充填材D1及びD2を分散させた。この分散液に、25℃にて液状を示すエポキシ樹脂A1を34g、粒径0.2μmブタジエンエラストマー含有ビスフェノールF型エポキシ樹脂A4を71g、25℃にて液状を示さない硬化剤B2を52g加えて撹拌した。25℃にて液状を示さない硬化剤B2が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを0.4g加え、更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過し、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmのフィルム状エポキシ樹脂組成物をそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
1Lのポリエチレン容器に有機溶剤Fを41g入れ、これに無機充填材D1を204g、D2を36g加え、撹拌羽で無機充填材D1及びD2を分散させた。この分散液に、25℃にて液状を示すエポキシ樹脂A1を0.2g、シリコーンエラストマー含有ビスフェノールF型エポキシ樹脂及びビスフェノールA型エポキシ樹脂(エポキシ樹脂A5)を30g、25℃にて液状を示さない硬化剤B2を15g加えて撹拌した。25℃にて液状を示さない硬化剤B2が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを0.1g加え、更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過し、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmの封止用フィルムをそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
1Lのポリエチレン容器に有機溶剤Fを100g入れ、これに無機充填材D1を713g、D2を126g加え、撹拌羽で無機充填材D1及びD2を分散させた。この分散液に、25℃にて液状を示すエポキシ樹脂A1を78g、シリコーンパウダC2を26g、25℃にて液状を示さない硬化剤B2を53g加えて撹拌した。25℃にて液状を示さない硬化剤B2が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを0.3g加えて更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過し、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmの封止用フィルムをそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
1Lのポリエチレン容器に有機溶剤Fを100g入れ、これに無機充填材D1を713g、D2を126g加え、撹拌羽で無機充填材D1及びD2を分散させた。この分散液に、25℃にて液状を示すエポキシ樹脂A1を78g、シリコーンパウダC3を26g、25℃にて液状を示さない硬化剤B2を53g加えて撹拌した。25℃にて液状を示さない硬化剤B2が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを0.3g加えて更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過し、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmの封止用フィルムをそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
1Lのポリエチレン容器に有機溶剤Fを100g入れ、これに無機充填材D1を713g、D2を126g加え、撹拌羽で無機充填材D1及びD2を分散させた。この分散液に、25℃にて液状を示すエポキシ樹脂A1を78g、シリコーンパウダC1を26g、25℃にて液状を示さない硬化剤B2を53g加えて撹拌した。25℃にて液状を示さない硬化剤B2が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを0.3g加えて更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過し、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmの封止用フィルムをそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
10Lのポリエチレン容器に有機溶剤Fを406.8g入れ、これに無機充填材D3を2394g加え、撹拌羽で無機充填材D3を分散させた。この分散液に、25℃にて液状を示すエポキシ樹脂A1を160g、25℃にて液状を示さないエポキシ樹脂A2を40g、25℃にて液状を示さない硬化剤B1を122g加えて撹拌した。25℃にて液状を示さない硬化剤B1が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを1.2g加えて更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過し、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmの封止用フィルムをそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
10Lのポリエチレン容器に有機溶剤Fを1329.1g入れ、これに無機充填材D3を7821g加え、撹拌羽で無機充填材D3を分散させた。この分散液に、25℃にて液状を示すエポキシ樹脂A1を382g、25℃にて液状を示さないエポキシ樹脂A2を134g、粒径0.1μmブタジエンエラストマー含有ビスフェノールF型エポキシ樹脂A3を111g、シリコーンエラストマー含有ビスフェノールF型エポキシ樹脂及びビスフェノールA型エポキシ樹脂(エポキシ樹脂A5)を43g、25℃にて液状を示さない硬化剤B1を382g加えて撹拌した。25℃にて液状を示さない硬化剤B1が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを4.0g加えて更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過して、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmの封止用フィルムをそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
1Lのポリエチレン容器に有機溶剤Fを100g入れ、これに無機充填材D1を713g、D2を126g加え、撹拌羽で無機充填材D1及びD2を分散させた。この分散液に、25℃にて液状を示すエポキシ樹脂A1を93g、25℃にて液状を示さない硬化剤B2を64g加えて撹拌した。25℃にて液状を示さない硬化剤B2が溶解したのを目視にて確認した後、分散液に、硬化促進剤Eを0.4g加えて更に1時間撹拌した。この分散液をナイロン製#200メッシュ(開口75μm)でろ過して、ろ液を採取してワニス状エポキシ樹脂組成物を作製した。このワニス状エポキシ樹脂組成物を、塗工機を使用して支持体(38μm厚のポリエチレンテレフタレート)上に、以下の条件で塗布し、フィルムの厚みが185μm、200μm及び225μmの封止用フィルムをそれぞれ作製した。
・塗布ヘッド方式:コンマ
・塗布及び乾燥速度:1m/分
・乾燥条件(温度/炉長):110℃/3.3m、130℃/3.3m、140℃/3.3m
なお、封止用フィルムにおける(F)成分の含有量は以下のように算出した。得られた支持体付きの封止用フィルムを5cm角の試料に切り出した。この試料を予め質量を測定したアルミカップに入れて、試料が入ったアルミカップの質量を測定した。次いで、試料をアルミカップに入れたまま、180℃のオーブンで10分間加熱し、室温にて10分間放置した後、試料が入ったアルミカップの質量を再度測定した。次いで、加熱前又は加熱後の試料が入ったアルミカップの質量の測定値から、別途測定した5cm角にカットした支持体の質量及びアルミカップの質量を差し引いて、加熱前及び加熱後の封止用フィルムの質量をそれぞれ求めた。そして、加熱前の封止用フィルムの質量から加熱後の封止用フィルムの質量を差し引いた値を封止用フィルムに含まれる有機溶剤の量とした。そして、加熱前の封止用フィルムの質量に対する有機溶媒の量の割合を有機溶媒の含有率とした。
(1)封止用フィルムを用いてシリコンチップを封止し、eWLBパッケージとした際の硬化物の反り評価方法
封止用フィルムとしては、厚みが185μmの封止用フィルムを2枚重ね、厚みを370μmとしたフィルムを用いた。以下の手順で、封止用フィルムを用いて、SUS板上の厚さ350μmのシリコンチップを封止し、8インチサイズのeWLBパッケージを作製した。実施例に示す方法で作製した封止用フィルムを直径20cmの円に切り取った。支持体を全て剥離し、SUS板上に配置されたシリコンチップの上に載せ、コンプレッションモールド装置を用いて、以下の条件でチップを封止し、封止体を作製した。図2には、本測定系におけるシリコンチップの配置図を示す。SUS板50上に、7.3mm角シリコンチップ60及び3mm角シリコンチップ70を図2のように配置した。
・コンプレッションモールド装置:アピックヤマダ株式会社製の商品名WCM-300
・コンプレッションモールド成型温度:140℃
・コンプレッションモールド圧力:2.5MPa
・コンプレッションモールド時間:10分
作製した封止体を以下の条件で硬化し、硬化体を作製した。
・オーブン:エスペック株式会社製の商品名SAFETY OVEN SPH-201
・オーブン温度:140℃
・時間:120分
作製した硬化体の反り量を、以下の装置を用いて測定した。
・反り測定ステージ装置名:コムス株式会社製の商品名CP-500
・反り測定レーザー光装置名:株式会社キーエンス製の商品名LK-030
硬化体表面の中心部を0(基準点)として、端部の高さを反り量として測定し、以下の評価基準に基づいて評価した。
○:反り量≦2.0mm
×:反り量>2.0mm
封止用フィルムとしては、厚み200μmであるフィルムを用いた。以下の手順で、封止用フィルムを用いて、厚さが800μmであり、12インチサイズのシリコンウェハにラミネートし、硬化させて封止体を作製した。ラミネートは以下の条件で実施した。
・ラミネーター装置:真空加圧ラミネーター(株式会社名機製作所製の商品名MVLP-500)
・ラミネート温度:90℃
・ラミネート圧力:0.5MPa
・真空引き時間:30秒
・ラミネート時間:40秒
作製した封止体を以下の条件で硬化し、硬化体を作製した。
・オーブン:エスペック株式会社製の商品名SAFETY OVEN SPH-201
・オーブン温度:140℃
・時間:120分
作製した硬化体の反り量を以下の装置を用いて測定した。
・反り測定ステージ装置名:コムス株式会社製の商品名CP-500
・反り測定レーザー光装置名:株式会社キーエンス製の商品名LK-030
ウェハ表面の中心部を0(基準点)として、ウェハ端部の高さを反りとして測定し、以下の評価基準に基づいて評価した。
○:反り量≦2.0mm
×:反り量>2.0mm
封止用フィルムとしては、厚みが225μmの封止用フィルムを2枚重ね、厚みを450μmとしたフィルムを用いた。封止用フィルムを120mm×10mmのサイズにカットし、120mm×10mmのサイズにカットした厚さ725μmのシリコンウェハ上に載せ、プレス成型で圧着し、封止体を得た。プレス成型は、以下の条件で実施した。
・圧着装置:株式会社マサダ製作所製の商品名MH-50Y
・圧着温度:140℃
・ラミネート圧力:1.0MPa
・圧着時間:20分
作製した封止体を以下の条件で硬化し、硬化体を作製した。
・オーブン:エスペック株式会社製の商品名SAFETY OVEN SPH-201
・オーブン温度:140℃
・時間:120分
作製した硬化体の反り量を、以下の装置を用いて測定した。
・反り測定ステージ装置名:コムス株式会社製の商品名CP-500
・反り測定レーザー光装置名:株式会社キーエンス製の商品名LK-030
個片化したシリコンウェハ表面の中心部を0(基準点)として、端部の高さを反りとして測定し、以下の評価基準に基づいて評価した。
○:反り量≦1.5mm
×:反り量>1.5mm
表2に示す実施例1及び比較例1、2の結果から、エラストマー成分の添加量の増加により、eWLBパッケージで評価した硬化体の反りに関して所望の効果を得られることが分かった。また、実施例2、3及び比較例2の結果から、12インチのシリコンウェハで評価した硬化体の反りに関しても、エラストマーの添加量の増加により所望の効果が得られることが分かった。
Claims (7)
- (A)エポキシ樹脂、(B)硬化剤、(C)ブタジエン系ゴム及びシリコーン系ゴムからなる群より選択される1種以上のエラストマー、並びに(D)無機充填材を含有し、
前記(C)成分の含有量が、前記(A)成分、前記(B)成分、前記(C)成分及び前記(D)成分の総質量を基準として、0.5~7.0質量%である、封止用フィルム。 - 前記(A)成分として、25℃において液状のエポキシ樹脂を、前記(A)成分、前記(B)成分、前記(C)成分及び前記(D)成分の総質量を基準として、5質量%以上含有する、請求項1に記載の封止用フィルム。
- (E)硬化促進剤を更に含有する、請求項1又は2に記載の封止用フィルム。
- (F)有機溶剤を、前記封止用フィルムの総質量を基準として、0.2~1.5質量%含有する、請求項1~3のいずれか一項に記載の封止用フィルム。
- 前記(D)成分の含有量が、前記(A)成分、前記(B)成分、前記(C)成分及び前記(D)成分の総質量を基準として、65質量%以上である、請求項1~4のいずれか一項に記載の封止用フィルム。
- フィルムの厚みが50~250μmである、請求項1~5のいずれか一項に記載の封止用フィルム。
- 電子部品と、該電子部品を封止する、請求項1~6のいずれか一項に記載の封止用フィルムの硬化体と、を備える、電子部品装置。
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JP2019085514A (ja) * | 2017-11-08 | 2019-06-06 | パナソニックIpマネジメント株式会社 | エポキシ樹脂組成物、エポキシ樹脂組成物の製造方法及び半導体装置 |
CN113056519A (zh) * | 2018-11-14 | 2021-06-29 | 长濑化成株式会社 | 固化性树脂组合物及固化性片材 |
KR20220041756A (ko) | 2020-09-25 | 2022-04-01 | 토요잉크Sc홀딩스주식회사 | 무용제형의 경화성 조성물, 경화물 및 그 제조 방법 |
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KR102463618B1 (ko) * | 2020-07-22 | 2022-11-04 | 가부시키가이샤 아리사와 세이사쿠쇼 | 열경화성 수지 조성물, 커버레이 필름, 접착 시트 및 플렉시블 프린트 배선판 |
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JP6749887B2 (ja) | 2020-09-02 |
TW201703207A (zh) | 2017-01-16 |
JPWO2016136741A1 (ja) | 2017-09-28 |
KR20170121171A (ko) | 2017-11-01 |
CN107210274B (zh) | 2021-09-03 |
CN107210274A (zh) | 2017-09-26 |
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