WO2004059721A1 - 電子部品装置 - Google Patents
電子部品装置 Download PDFInfo
- Publication number
- WO2004059721A1 WO2004059721A1 PCT/JP2003/016632 JP0316632W WO2004059721A1 WO 2004059721 A1 WO2004059721 A1 WO 2004059721A1 JP 0316632 W JP0316632 W JP 0316632W WO 2004059721 A1 WO2004059721 A1 WO 2004059721A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electronic component
- epoxy resin
- ether
- liquid epoxy
- circuit board
- Prior art date
Links
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 claims abstract description 82
- 239000000203 mixture Substances 0.000 claims abstract description 72
- 239000004065 semiconductor Substances 0.000 claims abstract description 58
- 229920005989 resin Polymers 0.000 claims abstract description 39
- 239000011347 resin Substances 0.000 claims abstract description 39
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 38
- -1 Fluorine aromatic diamine compound Chemical class 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 21
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 18
- 239000011737 fluorine Substances 0.000 claims abstract description 18
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims abstract description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 59
- 150000004984 aromatic diamines Chemical class 0.000 claims description 22
- 150000001875 compounds Chemical class 0.000 claims description 16
- 239000001257 hydrogen Substances 0.000 claims description 16
- 229910052739 hydrogen Inorganic materials 0.000 claims description 16
- 125000000962 organic group Chemical group 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 13
- 239000011256 inorganic filler Substances 0.000 claims description 12
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 12
- 125000003700 epoxy group Chemical group 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- 150000001735 carboxylic acids Chemical class 0.000 claims description 5
- 125000001153 fluoro group Chemical group F* 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- VMSIYTPWZLSMOH-UHFFFAOYSA-N 2-(dodecoxymethyl)oxirane Chemical compound CCCCCCCCCCCCOCC1CO1 VMSIYTPWZLSMOH-UHFFFAOYSA-N 0.000 claims description 3
- AWMVMTVKBNGEAK-UHFFFAOYSA-N Styrene oxide Chemical compound C1OC1C1=CC=CC=C1 AWMVMTVKBNGEAK-UHFFFAOYSA-N 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 claims 1
- CUFXMPWHOWYNSO-UHFFFAOYSA-N 2-[(4-methylphenoxy)methyl]oxirane Chemical compound C1=CC(C)=CC=C1OCC1OC1 CUFXMPWHOWYNSO-UHFFFAOYSA-N 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 abstract description 14
- 238000006467 substitution reaction Methods 0.000 abstract description 2
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- 230000000996 additive effect Effects 0.000 abstract 1
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- 229920000647 polyepoxide Polymers 0.000 description 22
- 229910000679 solder Inorganic materials 0.000 description 18
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 125000003118 aryl group Chemical class 0.000 description 12
- 230000004907 flux Effects 0.000 description 12
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- 239000007788 liquid Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000003960 organic solvent Substances 0.000 description 9
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- 239000000758 substrate Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000004593 Epoxy Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical group C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 6
- 230000008439 repair process Effects 0.000 description 6
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- 238000012360 testing method Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 150000004985 diamines Chemical class 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- 150000002221 fluorine Chemical class 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 4
- 239000011342 resin composition Substances 0.000 description 4
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
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- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
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- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 3
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- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000007614 solvation Methods 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- DXBHBZVCASKNBY-UHFFFAOYSA-N 1,2-Benz(a)anthracene Chemical compound C1=CC=C2C3=CC4=CC=CC=C4C=C3C=CC2=C1 DXBHBZVCASKNBY-UHFFFAOYSA-N 0.000 description 2
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- IVIDDMGBRCPGLJ-UHFFFAOYSA-N 2,3-bis(oxiran-2-ylmethoxy)propan-1-ol Chemical compound C1OC1COC(CO)COCC1CO1 IVIDDMGBRCPGLJ-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- GJYCVCVHRSWLNY-UHFFFAOYSA-N 2-butylphenol Chemical compound CCCCC1=CC=CC=C1O GJYCVCVHRSWLNY-UHFFFAOYSA-N 0.000 description 2
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- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
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- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
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- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical class C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 2
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- MSTZGVRUOMBULC-UHFFFAOYSA-N 2-amino-4-[2-(3-amino-4-hydroxyphenyl)-1,1,1,3,3,3-hexafluoropropan-2-yl]phenol Chemical compound C1=C(O)C(N)=CC(C(C=2C=C(N)C(O)=CC=2)(C(F)(F)F)C(F)(F)F)=C1 MSTZGVRUOMBULC-UHFFFAOYSA-N 0.000 description 1
- ASLNDVUAZOHADR-UHFFFAOYSA-N 2-butyl-3-methylphenol Chemical compound CCCCC1=C(C)C=CC=C1O ASLNDVUAZOHADR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- 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 subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
- H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
- H01L21/563—Encapsulation of active face of flip-chip device, e.g. underfilling or underencapsulation of flip-chip, encapsulation preform on chip or mounting substrate
-
- 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
- H01L24/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L24/29—Structure, shape, material or disposition of the layer connectors prior to 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
- H01L24/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L24/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
-
- 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
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
- H01L2224/13001—Core members of the bump connector
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Definitions
- the present invention provides an electronic component device in flip-chip connection in which a semiconductor element and an opposing electrode of a circuit board are electrically connected via a connection electrode portion (bump).
- the present invention relates to an electronic component device having excellent repairability. Background technology>
- the liquid resin composition used for the underfill is generally a thermosetting resin composition containing an epoxy resin or the like as a main component, it does not melt after being cured by heating, and has an adhesive force.
- thermosetting resin composition containing an epoxy resin or the like as a main component
- it does not melt after being cured by heating, and has an adhesive force.
- thermosetting resin composition having a function of removing a metal oxide film or an antioxidant film present on the surface of a semiconductor element or a wiring circuit board electrode
- Another object of the present invention is to provide a semiconductor device using an epoxy resin composition having excellent productivity which enables a flip chip to be mounted by first applying an object.
- an electronic component device provides a semiconductor device on a circuit board with a connection electrode portion provided on a semiconductor element and a connection electrode portion provided on a circuit board facing each other.
- the composition is formed by a liquid epoxy resin composition containing the following component (D) together with the components (A) to (C).
- (D) Carboxylic acid ether ether adduct (D) Carboxylic acid ether ether adduct. That is, the present inventors have repeatedly studied on an epoxy resin composition which is an underfill material for sealing a gap between a circuit board and a semiconductor element with a resin in order to achieve the above object.
- thermosetting resin having the antioxidant film removing function is interposed and solder melting is performed on the wiring circuit board mounting of the semiconductor element, whereby the wiring circuit board and the semiconductor element
- the sealing of the voids and the metal bonding are formed, so that the conventional method involves connecting the semiconductor element bumps to the wiring circuit board electrodes using a metal flux and then injecting the sealing resin into the upper voids.
- the cured product of the epoxy resin composition is solvated with a specific solvent, and subsequently swells, and as a result, the film strength of the cured product as the sealing resin is reduced.
- the present inventors have found that the cured product can be mechanically peeled off and the semiconductor element (flip chip) can be repaired, and the present invention has been achieved.
- the fluorinated aromatic diamine reduces the solubility parameter [Solubility Parameter (SP)] value of the cured product by the trifluoromethyl substituent or the fluorine substituent, so that the specific solvent causes solvation and subsequent swelling.
- the N, N, N, ⁇ ′-substituted fluorine-containing aromatic diamine compound is used to further improve solvation and swellability, so that repair can be performed as described above. It was found that. Brief description of drawings>
- FIG. 1 is a sectional view showing an electronic component device of the present invention.
- FIG. 2 is a cross-sectional view showing a manufacturing process of the electronic component device.
- FIG. 3 is a cross-sectional view illustrating a manufacturing process of the electronic component device.
- connection electrode portion (joint ball) 2 provided on a semiconductor element (flip chip) 3 and a circuit electrode 5 provided on a printed circuit board 1 face each other.
- the semiconductor element (flip chip) 3 is mounted on the printed circuit board 1.
- the gap between the printed circuit board 1 and the semiconductor element (flip chip) 3 is resin-sealed by a sealing resin layer 4 made of a liquid epoxy resin composition.
- the plurality of connection electrodes 2 for electrically connecting the printed circuit board 1 and the semiconductor element 3 may be provided in advance on the printed circuit board 1 surface, or may be provided on the semiconductor element 3 surface. It may be provided. Furthermore, they may be provided in advance on both the three sides of the semiconductor element on the one side of the printed circuit board.
- the material of the plurality of connection electrode portions 2 is not particularly limited, and examples thereof include low melting point and high melting point bumps made of solder, tin bumps, silver-tin tin bumps, silver-tin tin-copper bumps, and the like.
- a gold bump, a copper bump, or the like may be used.
- the material of the printed circuit board 1 is not particularly limited, but is roughly classified into a ceramic substrate and a plastic substrate.
- the plastic substrate include an epoxy substrate, a bismaleimide triazine substrate, and a polyimide substrate. Is raised.
- the liquid epoxy resin composition used in the present invention is such that the bonding temperature cannot be set to a high temperature due to a problem of heat resistance, such as a combination of a plastic substrate and a connection electrode portion made of low melting point solder. Especially limited in some cases It is preferably used without being performed.
- connection electrode portion 2 provided on the semiconductor element 3 is formed in a bump shape.
- the present invention is not particularly limited to this shape, and the circuit provided on the wiring circuit board 1 is not limited to this shape.
- the electrode 5 may be provided in a bump shape.
- the liquid epoxy resin composition as the material for forming the sealing resin layer 4 includes a liquid epoxy resin (A component), a curing agent (B component), ⁇ , ⁇ , ⁇ ′, ⁇ ′ monosubstituted fluorine-containing resin. It is obtained by blending an aromatic diamine compound (C component) and a carboxylic acid ether (D component).
- the term “liquid” refers to a liquid that exhibits fluidity at 25 ° C. That is, the viscosity at 25 ° C. is in the range of 0.1 OlPas ⁇ : LOOOOPas. The viscosity can be measured using an EMD type rotational viscometer.
- the liquid epoxy resin (A component) is not particularly limited as long as it is a liquid epoxy resin containing two or more epoxy groups in one molecule.
- examples thereof include bisphenol A type, bisphenol F type, Various liquid epoxy resins such as hydrogenated bisphenol A type, bisphenol AF type and phenol nopolak type and derivatives thereof, liquid epoxy resins derived from polyhydric alcohol and epichlorohydrin and derivatives thereof, glycidyl Various glycidyl-type liquid epoxy resins such as amine-type, hydantoin-type, amino-phenol-type, aniline-type, and toluidine-type, and derivatives thereof (edited by the Editorial Committee for Practical Plastic Dictionary, “Material for Practical Plastic Dictionary”, First Edition No. 3 Reprint, issued on April 20, 1996, pages 211-225 And liquid mixtures of these liquid epoxy resins and various glycidyl-type solid epoxy resins. These may be used alone or in combination of two or more.
- the curing agent (component B) is not particularly limited as long as it can cure the liquid epoxy resin (component A), but it is preferable to use at least one of aromatic diamine and a derivative thereof. It is more preferable to use at least one of a fluorinated aromatic diamine and a derivative thereof from the viewpoint of solvation with a specific solvent and subsequent swelling.
- aromatic diamine in at least one of the above aromatic diamines and derivatives thereof examples include p-phenylenediamine, m-phenylenediamine, 2,5-toluenediamine, 2,4-tolenenediamine, .6-Dimethinole m-Phenylene diamine, aromatic mononuclear diamines such as 2,4-diaminomesitylene, 4, 4'-Diaminodipheninole ether, 3, 3'-Diaminodiphene-noretheneole, 3, 4'-Diamino Diphenyl ether, 4, A 'diaminodiphenylmethane, 3,3'-diaminodiphenylenolemethane, 4,4 diaminodiphenylenolesnorehone, 3,3'-diaminodiphenylsulfone, 4,4' —Diaminodiphenyl sulfide, 3, 3 ; —Diaminodip
- the fluorine-containing aromatic diamine in at least one of the above-mentioned fluorine-containing aromatic diamine and its derivative is not particularly limited as long as it is a fluorine-substituted aromatic diamine having a primary amino group.
- a fluorine-substituted or fluorinated alkyl-substituted diaminobiphenyl represented by the following general formula (2) is used. Therefore, it is preferably used.
- X is fluorine and or C n F 2n + 1 (n is Ru positive der 1-10.).
- the two m's may be different or the same and are integers from 1 to 4.
- R s to R s are hydrogen or a monovalent organic group, and at least one of R 5 to R 8 is hydrogen.
- R 5 to R 8 are hydrogen or a monovalent organic group, and at least one of R 5 to R 8 must be hydrogen.
- the monovalent organic group include a saturated alkyl group represented by one C n H 2n + 1 (n is a positive number of 1 to 10), an aryl group, and one CH 2 CH (OH) CH 2 — 3-alkoxy-substituted 1-2-hydroxypropyl group represented by OC n H 2n + 1 , 1 CH 2 CH (OH) CH 2 — O—
- R 5 to R 8 may be the same or different as long as the above conditions are satisfied.
- the aryl group is not particularly limited, but specifically includes a phenyl group (C 6 H 5 —), a tolyl group (CH 3 C 6 H 5 —), a xylyl group ((CH 3 ) 2 C 6 H 5 ), Biphenyl group (C 6 H 5 C 6 H 4 —), naphthyl group (C 10 H 7 —), There are a trinole group (C 14 H 9 —) and a phenanthryl group (C 14 H 9 —).
- the use of 2,2′-ditrifluoromethinolate 4,4′-diaminobiphenyl, which has the smallest active hydrogen equivalent, as the above-mentioned fluorinated aromatic diamine reduces the amount of compounding. It is preferable from the viewpoint that the viscosity of the one-component solventless epoxy resin composition can be reduced.
- the compounding ratio of the liquid epoxy resin (component A) and the curing agent (component B) is such that the curing agent is added to one epoxy group of the liquid epoxy resin (component A).
- the number of active hydrogen (B component) in the range of 0.4 to 1.6. More preferably, it is in the range of 0.6 to 1.2. That is, when the number of active hydrogens per epoxy group exceeds 1.6, the viscosity of the liquid epoxy resin composition tends to increase, and when it is less than 0.4, the liquid epoxy resin composition hardens. The glass transition temperature of the body tends to decrease.
- a liquid epoxy resin (A component), especially a polyfunctional aliphatic liquid epoxy resin is used, at least one of the above-mentioned fluorinated aromatic diamine and a derivative thereof, and a polyfunctional aliphatic liquid epoxy resin
- a component especially a polyfunctional aliphatic liquid epoxy resin
- the above prepolymer is obtained, for example, by reacting at least one of a fluorine-containing aromatic diamine and a derivative thereof with a polyfunctional aliphatic liquid epoxy compound having two or more epoxy groups in one molecule.
- a predetermined amount of each component is charged into a reaction vessel without a catalyst, heated to about 60 to 120 ° C under a nitrogen stream, and reacted until a predetermined molecular weight is reached. Is prepared.
- the molecular weight of the prepolymer is preferably a prepolymer which is reacted until the weight average molecular weight in terms of polystyrene reaches about 400 to 500,000. It is possible to prevent generation of voids in the underfill sealing resin layer due to evaporation and volatilization of the low-boiling low-molecular-weight compound.
- polyfunctional aliphatic liquid epoxy resin examples include ethylene glycol diglycidyl ether, propylene glycol diglycidinole ether, and butane.
- Aliphatic diols and triols, and polyfunctional glycidyl ethers of aliphatic polyfunctional alcohols examples include ethylene glycol diglycidyl ether, propylene glycol diglycidinole ether, and butane.
- the N, N,, ⁇ '-4-substituted fluorinated aromatic diamine compound (component C) used together with the liquid epoxy resin (component A) and the curing agent (component B) is specifically represented by the following general formula ( And is obtained by, for example, reacting the fluorinated aromatic diamine with a monoepoxy compound having one epoxy group in one molecule.
- X is fluorine and / or C n F 2n + 1 (n is Ru positive der 1-10.).
- the two m's may be different or the same and are each an integer from 1 to 4.
- R 1 ⁇ ! 4 is a monovalent organic group other than hydrogen, which may be the same or different.
- R 1 ! ⁇ 4 is a monovalent organic group other than hydrogen, and for example, a saturation represented by one C n H 2n + 1 (n is a positive number of 1 to 10).
- Ri R 4 may be the same or different.
- aryl group examples include, but are not limited to, a phenyl group (C 6 H 5 —), a tolyl group (CH 3 C B H 5 —), and a xylyl group ((CH 3 ) 2 C 6 H 5 ), Biphenyl group (C 6 H 5 C 6 H 4 _), naphthyl group (C 10 H 7 _), anthryl group ( C i4 H 9 —), and phenanthryl group (C 14 H 9 —).
- a phenyl group C 6 H 5 —
- a tolyl group CH 3 C B H 5 —
- a xylyl group ((CH 3 ) 2 C 6 H 5 )
- Biphenyl group C 6 H 5 C 6 H 4 _
- naphthyl group C 10 H 7 _
- anthryl group C i4 H 9 —
- phenanthryl group C 14 H 9 —
- the monoepoxy compound is not particularly limited as long as it is an epoxy compound containing one epoxy group in one molecule, and examples thereof include n-butylglycidyl ether, arylinglycidyl ether, and Ethylhexylglycidinolete, styrene oxide, phenyldaricidinoleether, cresylglycidinolete, laurylglycidylether, -sec-petit / rephenyldaricidyl ethereinol, nunolefeninoleglyce Ginoleatenole, glycidyl ether of canolebino monolate, glycidinolemetharylate, bininolecyclohexene monoepoxide, H-binenoxide and the like. These may be used alone or in combination of two or more.
- the compounding ratio of the above ⁇ , ⁇ , ⁇ ', ⁇ '—4-substituted fluorinated aromatic diamine compounds (component C) is set in the range of 10 to 70% by weight based on the whole organic components of the liquid epoxy resin composition. Is preferred. It is more preferably set to 30 to 60% by weight, particularly preferably to 20 to 40% by weight. In other words, if the content is less than 10% by weight, it is difficult to develop a repair due to rapid swelling, while if it exceeds 70% by weight, the strength of the liquid epoxy resin composition cured product is insufficient, and the material can withstand a temperature cycle. This is because there is a tendency that the mechanical strength cannot be maintained.
- various known curing accelerators can be used to shorten the curing time.
- tertiary amines such as 1,8-diazabicyclo (5,4,0) indene-1, triethylenediamine, imidazonoles such as 2-methylimidazole, triphenylenolephosphine, tetraphene Phosphorus curing accelerators such as enolephosphonium tetraphenylenolate, acidic catalysts such as salicylic acid, copper acetyl acetate And a Lewis acid such as zinc acetyl acetonate. These may be used alone or in combination of two or more.
- a phosphonium salt such as tetraphenylphosphorumtetraphenylporate or a Lewis acid such as copper acetyl acetate, zinc acetylacetonate, etc.
- a Lewis acid such as copper acetyl acetate, zinc acetylacetonate, etc.
- the amount of the curing accelerator is not particularly limited, but the liquid epoxy resin (component A), the curing agent (component B), and N, N, ⁇ ′, N′—4-substituted fluorinated aromatic. It is preferable to appropriately set the ratio of the mixture with the diamine compound (component C) so that a desired curing rate can be obtained. For example, as an index of the curing speed, the amount of the gelling time can be easily determined while measuring the gel time with a hot platen. As an example, it is preferable to set the amount within a range from 0.01 to 3% by weight in the whole liquid epoxy resin composition.
- Carboxylic acid butyl ether which is a flux component used together with the above liquid epoxy resin (component (I)), curing agent (component (II)) and ⁇ , ⁇ , ⁇ ′, ⁇ / ⁇ -substituted fluorinated aromatic diamine compounds (component C)
- the adduct (component D) include an adduct of a carboxylic acid monobutyl ether represented by the following general formula (3), which is composed of an organic carboxylic acid and a vinyl ether compound, and a general formula (4) below.
- the polyvalent carboxylic acid polyvalent vinyl ether adduct and the like are not limited, as long as they have these structures.
- the above organic carboxylic acids include formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, lauric acid, myristylic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, Cyclohexancarboxylic acid, phenylacetic acid, benzoic acid, o, m, D-toluic acid, o, m, p-chlorobenzoic acid, o, m, ⁇ -promobenzoic acid, o, m, p —Monocarboxylic acids such as dinitrobenzoic acid, oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, phthalic acid, isophthalic acid, terephthalic acid, itaconic acid, acrylic acid And other polycarboxylic acids such
- vinyl ether compounds examples include vinyl ether compounds having a monovalent or higher valent organic group such as a butyl group, an ethyl group, a propyl group, an isopropyl group, a cyclohexyl group, and an aryl group.
- the D component which is a flux active agent, exerts a flux effect during the semiconductor mounting process and can react with the epoxy resin composition. It is suitably used as a material having the function of
- R 1 (3 is a monovalent or higher valent organic group
- R 11 is a monovalent or higher valent organic group, and may be the same or different from each other.
- R 12 and R 13 are divalent organic groups, and may be the same or different.
- N is a positive integer, preferably a positive integer of 1 to 4.
- adipic acid as the rubonic acid and a cycloadipate obtained using a butyl ether compound having a cyclohexyl group as the beer ether compound, since it has a three-dimensional crosslinked structure with the epoxy resin.
- examples include adducts of xyldibutyl ether and adducts of hexaldibutylether maleate.
- 0.5 wt% or more is preferable because there is no tendency for rapid flux activity to be insufficient, and 15 wt% or less because the glass transition temperature of the cured product does not tend to decrease slightly. Is preferred.
- an inorganic filler can be added within a range that does not cause a problem in metal bonding between the bump electrode portion of the semiconductor element flip chip and the electrode portion of the printed circuit board.
- examples of such an inorganic filler include silica powders such as synthetic silica and fused silica, various powders such as alumina, silicon nitride, aluminum nitride, boron nitride, magnesia, calcium silicate, magnesium hydroxide, aluminum hydroxide, and titanium oxide. Is raised.
- silica powders such as synthetic silica and fused silica
- various powders such as alumina, silicon nitride, aluminum nitride, boron nitride, magnesia, calcium silicate, magnesium hydroxide, aluminum hydroxide, and titanium oxide. Is raised.
- it is particularly preferable to use spherical silica powder because the effect of reducing the viscosity of the liquid epoxy resin composition is large.
- the inorganic filler having a maximum particle diameter of 24 ⁇ ⁇ ⁇ or less. Further, those having an average particle diameter of not more than 10 ⁇ together with the maximum particle diameter are preferably used, and those having an average particle diameter of 1 to 8 / m are particularly preferably used.
- the maximum particle size and the average particle size can be measured, for example, using a laser diffraction / scattering particle size distribution analyzer.
- the amount of the inorganic filler is preferably set in the range of 10 to 80% by weight of the entire liquid epoxy resin composition, and particularly preferably 40 to 70% by weight / 0 . That is, the blending amount is 10 weight. /.
- the effect of the reduction of the linear expansion coefficient of the liquid epoxy resin composition cured product tended to be less, and when it exceeds 8 0 wt ° / 0, a tendency that the viscosity of the liquid epoxy resin composition is increased Is seen.
- the liquid epoxy resin composition of the present invention includes the above liquid epoxy resin (component A), a curing agent (component B), an N, N, ⁇ ′, ⁇ ′—4-substituted fluorine-containing aromatic diamine compound (component C). ), Carboxylate butyl ether adduct (component D), curing accelerators and inorganic fillers, as well as silane coupling agents to promote adhesion to adherends and strengthen interfacial adhesion with various inorganic fillers. Can also be used in combination.
- the above silane coupling is not particularly limited, and examples thereof include ⁇ - (3,4-epoxycyclohexyl) ethyltrimethoxysilane, ⁇ -glycidoxypropyltrimethoxysilane, and ⁇ -glycidoxypropylmethylethoxysilane. Is raised. Further, in addition to the above components, a reactive diluent may be appropriately mixed for the purpose of lowering the viscosity, etc., but as described above, this reactive diluent contains a volatile low-boiling compound.
- Examples of the reactive diluent include ⁇ -butyl glycidyl ether, aryl glycidyl ether, 2-ethylhexyl glycidyl ether, styrene oxide, phenoleglycidinoleate ethere, cresinole glycidinoleate ethereol, lauryl glycidyl ether.
- liquid epoxy resin composition of the present invention may further comprise a flame retardant such as antimony trioxide, antimony pentoxide, or a brominated epoxy resin, a flame retardant auxiliary, or a silicone.
- a flame retardant such as antimony trioxide, antimony pentoxide, or a brominated epoxy resin
- a flame retardant auxiliary such as a silicone
- a low-stressing agent such as corn, a coloring agent, and the like can be appropriately combined without departing from the spirit of the present invention.
- the liquid epoxy resin composition of the present invention can be produced, for example, as follows. That is, the liquid epoxy resin (component A), curing agent (component B), inorganic filler (component C), N, N, ⁇ ′, ⁇ ′ monosubstituted fluorinated aromatic diamine compound (component D) If necessary, each component such as a curing accelerator is blended in a predetermined amount, and this is mixed and dispersed under a high shearing force such as a three-roll or homomixer, and optionally defoamed under reduced pressure to achieve the intended purpose. Thus, a one-part solvent-free liquid epoxy resin composition can be produced.
- a semiconductor element is mounted on a printed circuit board via a plurality of connection electrodes, and a gap between the printed circuit board and the semiconductor element is formed by the liquid epoxy resin composition.
- a sealing resin layer can be formed by interposing the liquid epoxy resin composition between the printed circuit board and the semiconductor element, melting the liquid epoxy resin composition, and then curing the liquid epoxy resin composition.
- liquid epoxy resin composition 10 of the present invention is placed on the printed circuit board 1 on which the circuit electrodes 5 are provided.
- a semiconductor element 3 provided with a plurality of spherical connection electrode portions (joint poles) 2 is placed at predetermined positions on the liquid epoxy resin composition 10.
- the liquid epoxy resin composition 10 is melted on a heating stage to lower the viscosity, and the connection electrode part 2 of the semiconductor element 3 is pushed away from the liquid epoxy resin composition 10 in the above state, and the wiring epoxy resin composition 10 is placed on the wiring circuit board 1.
- the circuit electrode 5 and the connection electrode portion 2 are in contact with each other, and the gap between the semiconductor element 3 and the wiring circuit board 1 is filled with the liquid epoxy resin composition 10 in the low viscosity state. .
- the liquid crystal epoxy resin composition 10 is cured to seal the gap, thereby forming a sealing resin layer 4. I do.
- the solder reflow method may be a bonding method using a reflow furnace or a bonding method in which the heater is heated to a temperature equal to or higher than the melting point of the solder and the solder is melted at the same time as mounting the chip.
- the connection electrode portion (joint ball) 2 provided on the semiconductor element (flip chip) 3 and the circuit electrode 5 provided on the printed circuit board 1 are opposed to each other.
- the semiconductor element 3 was mounted on the printed circuit board 1, and the gap between the printed circuit board 1 and the semiconductor element 3 was sealed with a sealing resin layer 4 made of a liquid epoxy resin composition 10. It manufactures electronic component devices.
- the thickness and the weight of the liquid epoxy resin composition 10 are the same as those described above, and the size of the semiconductor element 3 to be mounted and the size of the spherical connection electrode portion 2 provided on the semiconductor element 3 are as follows. That is, it is appropriately set according to the volume occupied by the sealing resin layer 4 formed by filling and sealing the gap between the semiconductor element 3 and the printed circuit board 1.
- the heating temperature for heating the liquid epoxy resin composition 10 to a low viscosity state includes the heat resistance of the semiconductor element 3 and the wiring circuit board 1, the melting point of the connection electrode part 2, In addition, it is appropriately set in consideration of the room temperature viscosity, heat resistance, and the like of the liquid epoxy resin composition 10.
- the gap distance between the semiconductor element (flip chip) 3 and the printed circuit board 1 is generally about 30 to 300 ⁇ m.
- the cured epoxy resin composition of the resin-encapsulated portion of the electronic component device obtained in this way swells with a specific organic solvent to reduce the adhesive strength even after curing, and repairs the electronic component device. You can do one.
- a ketone solvent As the specific organic solvent, a ketone solvent, a glycol diether solvent, a nitrogen-containing solvent, and the like are preferable. These may be used alone or in combination of two or more.
- the ketone solvents include acetophenone, isophorone, ethyl-1-n-butyl ketone, diisoptino-leketone, getinole-ketone, cyclohexyl ketone, di-n-propynole-ketone, methyl oxide, methino-le-amino-ketone, methino-le-iso-ptino-le-ketone, and methino-le-ketone.
- Reketone, methinolecyclohexanone, methinole n-heptyl ketone, holone and the like These can be used alone or in combination. Used.
- glycol diether-based solvent examples include ethylene glycol getyl ether, ethylene glycol diol resin butyl phenol, ethylene glycol diol methyl butyl phenol, ethylene glycol glycol dimethyl butyl alcohol, and diethylene glycol diol chlorophenol. And diethylene glycolone resin butynoate ether, diethylene glycolone dimethyl ether, triethylene glycol dimethyl ether and the like. These may be used alone or in combination of two or more.
- nitrogen-containing solvent examples include N, N'-dimethylformamide, N, N'-dimethylacetamide, N-methyl-2-pyrrolidone, ⁇ , ⁇ '-dimethylsulfoxide, and hexamethylphosphortriamide. And the like. These may be used alone or in combination of two or more.
- a semiconductor device flip chip
- a portion corresponding to the repair of a printed circuit board is heated using a hot plate or the like to remove the semiconductor device.
- the cured body of the epoxy resin composition of the present invention is heated at a temperature of about + 50 ° C. or more from the glass transition temperature of the cured body, whereby the cured body undergoes cohesive failure or one (a semiconductor element or Both can be easily peeled off in a state of being bonded to the printed circuit board.
- the organic solvent is applied directly, or the organic solvent is impregnated with absorbent cotton, and the exposed portion of the cured body of the epoxy resin composition of the printed circuit board is contacted at room temperature with the swelling of the cured body. After confirming that the residue is removed, the printed circuit board can be reused.
- a semiconductor element (flip chip) to which the residue of the cured product of the liquid epoxy resin composition adheres must be immersed in the above-mentioned organic solvent in a predetermined container at room temperature to remove the cured product by swelling. As a result, the semiconductor element (flip chip) can be reused.
- the whole of the repaired part of the printed circuit board is coated directly with the organic solvent or covered with absorbent cotton impregnated with the organic solvent.
- the semiconductor element can be removed from the printed circuit board after the cured body is swelled by gradually penetrating the organic solvent from the end of the element to reduce the strength and adhesion of the cured body.
- Epoxy resin represented by the following structural formula (5) Epoxy resin represented by the following structural formula (5).
- n is a positive number of 0 or more (preferably a positive number of 0 to 300, and more preferably a positive number of 0 to 10). Purity 99%, viscosity 22 dPas (25 ° C), epoxy equivalent 165 gZe q)
- a polyfunctional epoxy compound represented by the following structural formula (6) A polyfunctional epoxy compound represented by the following structural formula (6).
- Spherical particles (maximum particle diameter 12 ⁇ , average particle diameter 4 ⁇ m, specific surface area 3.0 m 2 / g).
- a main component acid equivalent: 273 g / mo1, viscosity: 26 dPa ⁇ s, weight average molecular weight: 2050 , Number average molecular weight 1405.
- the mixture was filled into a polypropylene syringe having a needle with a needle inner diameter of 0.56 mm.
- the thickness of the opening of 64 (300- ⁇ m) diameter wiring pads (board-side electrodes) ⁇ ! ⁇ ! ! of ! ⁇ The liquid epoxy resin composition was previously applied to the surface of the semiconductor element mounting surface including the solder pads (board-side electrodes) of the glass / epoxy wiring circuit board using the syringe described above.
- a silicon chip (thickness: 370 m, size: 1 Omm X 1 Omm) having 64 solder bump electrodes having a diameter of 200 ⁇ ⁇ was prepared, and the substrate side electrode of the wiring circuit board was prepared. And the bump electrode of the face-down silicon chip were aligned, and the silicon chip was allowed to stand on the printed circuit board.
- the gap between the flip chip and the printed circuit board was 210 ⁇ . Then, it was cured at 150 ° C. for 4 hours and sealed with a resin to produce an electronic component device. After the curing was completed, the mixture was gradually cooled to room temperature, and the electrical connection was examined by a conduction test. As a result, “ ⁇ ” indicates that an electrical connection was obtained, and “X” indicates that no electrical connection was obtained.
- the gap between the printed circuit board and the semiconductor element is filled and sealed by the ultrasonic testing equipment. The presence or absence of voids in the sealed sealing resin layer was observed. Then, the case where no void was observed was evaluated as ⁇ , the case where one or two voids were observed was evaluated as ⁇ , and the case where more voids were observed was evaluated as X.
- the conduction failure rate of the electronic component device immediately after resin sealing was measured. After that, a temperature cycle test was performed on the electronic component device for 30 minutes at 25 ° C for 10 minutes using a thermal test device, and electrical continuity after 100 cycles was performed. Inspection was performed, and a connection reliability test was performed on all 64 copper wiring pads (board-side electrodes) of the above-mentioned glass / epoxy wiring circuit board, and the conduction failure rate (%) was calculated.
- the silicon chip was peeled off from the electronic component device on a hot plate heated to 200 ° C., and after returning to room temperature, the epoxy resin composition remaining at the connection portion was removed.
- Absorbent cotton containing a mixed solvent of equal amounts of N, N'-dimethylformamide and dimethylene glycol dimethyl ether was allowed to stand on the residue of the cured product, and allowed to stand at room temperature (22 ° C) for 1 hour. Thereafter, the absorbent cotton is removed, the wipe is thoroughly wiped with methanol, the cured epoxy resin composition is peeled off, and the peelable electronic component device is again supplied with the solder paste to the pad portion of the printed circuit board, and after the solder is melted. Then, a silicon chip was mounted on the printed circuit board in the same manner as described above, and the electrical conductivity was examined. Thereafter, the resin was sealed in the same manner as above, and the repairability (rework) property was evaluated.
- the liquid epoxy resin compositions of all the examples showed no voids in the sealing resin layer and no defective conduction due to the use of the carboxylic acid vinyl ether adduct as a flux component, and were not repairable. It is clear that it is also excellent. In addition, it can be seen that, in combination with the low viscosity, it is excellent as a voidless one-part solvent-free liquid epoxy resin composition.
- the gap between the circuit board and the semiconductor element includes a liquid epoxy resin (A component), a curing agent (B component), and N, N, ⁇ ′, N′_4 substitution.
- a component liquid epoxy resin
- B component curing agent
- N, N, ⁇ ′, N′_4 substitution is an electronic component device sealed with a sealing resin layer made of a liquid epoxy resin composition containing a carboxylic acid vinyl ether adduct (component D) together with a fluoroaromatic diamine compound (component C).
- component D component is a flux component
- the electrical connection between the flip chip, which is a semiconductor element, and the printed circuit board is achieved simultaneously with the sealing. Because you can do it, you will be more productive.
- an electronic component device obtained by resin sealing using the above-mentioned liquid epoxy resin composition has excellent productivity and connection reliability, and even if a connection failure occurs due to a displacement between electrodes or the like, An electronic component device with excellent repairability can be obtained without discarding the electronic component device itself.
- the fluorine-containing aromatic diamine represented by the general formula (2) is used as a curing agent (component (2)) and a prepolymer obtained by reacting the fluorine-containing aromatic diamine with a liquid epoxy resin (component (II)) is used.
- the curing speed can be improved.
- the liquid epoxy resin composition can be easily obtained without requiring a complicated step in the measurement and the subsequent dispersion step.
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Abstract
Description
Claims
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US10/540,863 US7352069B2 (en) | 2002-12-25 | 2003-12-24 | Electronic component unit |
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JP2002374735A JP3971995B2 (ja) | 2002-12-25 | 2002-12-25 | 電子部品装置 |
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US (1) | US7352069B2 (ja) |
JP (1) | JP3971995B2 (ja) |
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CN102057475B (zh) * | 2008-06-05 | 2013-01-02 | 住友电木株式会社 | 半导体装置的制造方法以及半导体装置 |
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- 2003-12-24 WO PCT/JP2003/016632 patent/WO2004059721A1/ja active Application Filing
- 2003-12-24 CN CNB2003801073508A patent/CN100376023C/zh not_active Expired - Fee Related
- 2003-12-24 US US10/540,863 patent/US7352069B2/en not_active Expired - Fee Related
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JP2000060464A (ja) * | 1998-08-19 | 2000-02-29 | Ishino Seisakusho:Kk | 握り寿司製造装置 |
EP1233446A2 (en) * | 2001-02-14 | 2002-08-21 | Nitto Denko Corporation | Thermosetting resin composition and semiconductor device using the same |
JP2003119454A (ja) * | 2001-10-16 | 2003-04-23 | Nec Corp | 電子部品装置 |
Also Published As
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CN100376023C (zh) | 2008-03-19 |
JP2004207483A (ja) | 2004-07-22 |
JP3971995B2 (ja) | 2007-09-05 |
CN1732562A (zh) | 2006-02-08 |
US7352069B2 (en) | 2008-04-01 |
US20060103028A1 (en) | 2006-05-18 |
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