WO2008069179A1 - 封止材料及びその封止材料を用いる実装方法 - Google Patents
封止材料及びその封止材料を用いる実装方法 Download PDFInfo
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- WO2008069179A1 WO2008069179A1 PCT/JP2007/073332 JP2007073332W WO2008069179A1 WO 2008069179 A1 WO2008069179 A1 WO 2008069179A1 JP 2007073332 W JP2007073332 W JP 2007073332W WO 2008069179 A1 WO2008069179 A1 WO 2008069179A1
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- WIPO (PCT)
- Prior art keywords
- sealing material
- temperature
- electronic component
- glass transition
- circuit board
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the groups H01L21/18 - H01L21/326 or H10D48/04 - H10D48/07 e.g. sealing of a cap to a base of a container
- H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
- H01L21/563—Encapsulation of active face of flip-chip device, e.g. underfilling or underencapsulation of flip-chip, encapsulation preform on chip or mounting substrate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing compounds
- C08G59/4021—Ureas; Thioureas; Guanidines; Dicyandiamides
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- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
- C09K2200/0647—Polyepoxides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
- C09K2200/065—Polyurethanes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16151—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/16221—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/16225—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32225—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73201—Location after the connecting process on the same surface
- H01L2224/73203—Bump and layer connectors
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73201—Location after the connecting process on the same surface
- H01L2224/73203—Bump and layer connectors
- H01L2224/73204—Bump and layer connectors the bump connector being embedded into the layer connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01004—Beryllium [Be]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01012—Magnesium [Mg]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01019—Potassium [K]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/0102—Calcium [Ca]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
- Y10T29/49146—Assembling to base an electrical component, e.g., capacitor, etc. with encapsulating, e.g., potting, etc.
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49718—Repairing
- Y10T29/49721—Repairing with disassembling
- Y10T29/49723—Repairing with disassembling including reconditioning of part
- Y10T29/49725—Repairing with disassembling including reconditioning of part by shaping
- Y10T29/49726—Removing material
Definitions
- the present invention relates to a material for sealing an electrode joint portion of a circuit board on which an electronic component is mounted.
- circuit boards of electronic devices have been required to be mounted with high density in order to reduce the size, weight, performance, and speed of electronic devices.
- semiconductor devices including electronic components and chip components mounted on circuit boards, CSP (chip size package) ICs, and the like are also being reduced in size, thickness, speed, and number of terminals.
- CSP chip size package
- the mechanical strength of electronic components and / or semiconductor devices themselves is decreasing, and those that are more vulnerable to mechanical stress and temperature changes applied to them are increasing.
- the cost per electronic component and / or semiconductor device, as well as the cost per circuit board on which electronic components are mounted has increased.
- the electronic component and / or semiconductor device are arranged at predetermined positions on the circuit board so that the corresponding electrodes are in contact with each other.
- Solder material or conductive adhesive is supplied between the electrodes to be connected, and this is put into a reflow furnace or the like to join the electrodes of the electronic component and / or semiconductor device and the circuit board, and further the joining.
- a method of sealing between the electronic component and / or the semiconductor device and the circuit board including the periphery of the joint portion with a resin is generally performed.
- This resin sealing is used for adhering and fixing electronic components and / or semiconductor devices to circuit boards, even when exposed to high-temperature and high-humidity environments after heat cycles, and for electronic components and / or semiconductors. This is important to protect the joint between the device and circuit board with high reliability.
- an electronic component adhesive member with a low elastic modulus is used between the electronic component and the wiring board.
- An invention for relieving thermal stress is disclosed in Patent Document 1 (particularly paragraph No. 0032).
- Patent Document 1 there is a difference between the thermal expansion coefficient of a semiconductor chip and the thermal expansion coefficient of a circuit board.
- the low elastic modulus electronic component according to the invention adhesive member It is disclosed that it is effective to use.
- inspection / testing (hereinafter referred to as inspection, etc.) is performed at various assembly stages to find articles that do not meet the required standards.
- the found nonconforming product is excluded from the assembly process.
- products that are certified as conforming products through such inspections are sent to a further assembly process to produce electrical products.
- a circuit board on which electronic components and / or semiconductor devices are mounted (hereinafter also referred to as a mounted circuit board) is certified as a nonconforming product, the costs of the electronic components and / or semiconductor devices and mounted circuit boards are reduced. Because it is expensive, discarding the entire mounted circuit board as it is leads to an increase in the product cost at the end and an increase in the amount of industrial waste. , Which is preferable in terms of giving a load to the environment.
- a mounted circuit board that is regarded as a non-conforming product may have a damaged electronic component and / or semiconductor device for various reasons including thermal history.
- parts and / or semiconductor devices are installed, one or several electronic components and / or semiconductor devices are defective (or nonconforming to the specified standard), but other electronic components If the semiconductor device and / or the circuit board itself are not damaged, only electronic components and / or semiconductor devices that have been certified as defective (or nonconforming product) can be easily removed from the mounted circuit board. Instead, by mounting normal electronic components and / or semiconductor devices, the remaining part of the mounted circuit board can be used effectively.
- Patent Document 2 and Patent Document 3 disclose an invention in which a defective electronic component and / or semiconductor device is repaired and the substrate is reused so that the substrate can be reused.
- Patent Document 4 proposes a method in which an even stronger adhesive is applied to the resin remaining on the circuit board, and heated and removed using a peeling plate. Further, Patent Document 5 proposes a method for removing the resin remaining on the substrate with a grinding cutter.
- Patent Document 1 JP 2000-154361 A
- Patent Document 2 Japanese Patent Laid-Open No. 10-107095
- Patent Document 3 JP-A-10-209342
- Patent Document 4 JP-A-5-109838
- Patent Document 5 JP-A-6-5664
- an electronic component adhesive member having a low elastic modulus is used to relieve the thermal stress generated between the electronic component and the wiring board.
- Inventors of the present application have peeled a weakened electronic component and / or semiconductor device only by preventing cracks if the joints are peeled off when heat and mechanical stress are applied from the outside.
- Various studies were conducted for the purpose of preventing cracks and cracks. As a result, contrary to the invention disclosed in Patent Document 1, rather, the elastic modulus is rather high!
- Patent Document 4 and Patent Document 5 it is necessary to apply a relatively large mechanical stress to the electronic component and / or the semiconductor device when performing the repair operation.
- the rate of damage to the substrate to be recovered during the repair operation was relatively high! /, And! /.
- This application solves the above-described conventional problems, and when mounting a relatively fragile electronic component and / or semiconductor device, the joint and the electronic component and / or semiconductor device are subjected to low stress.
- One object of the present invention is to provide an invention of a sealing material having the property of being able to be sealed with.
- the sealing material is also intended to have a suitable repairability that can easily repair only electronic components and / or semiconductor devices that have been certified as nonconforming after sealing.
- This application discloses an electronic component and / or a semiconductor device using a sealing material that has a characteristic that it can be sealed with low stress and a characteristic that it can be repaired relatively easily. Another object is to provide an invention of a method of implementation.
- This application discloses an electronic component and / or a semiconductor device using a sealing material that has both the characteristic that it can be sealed with low stress and the characteristic that it can be repaired relatively easily. Another object is to provide an invention of a mounted structure.
- thermosetting resin component in the first invention, comprises at least (a) a thermosetting resin component and (b) a curing agent component thereof, the thermosetting resin component comprising an epoxy resin composition, a urethane resin.
- a sealing material that is one or more resin compositions selected from the group consisting of a composition, a phenol resin composition, and an acrylic resin composition, and a cured product obtained by heating at 80 ° C or higher. And a sealing material characterized by having a glass transition temperature (Tg) in a temperature range of 50 ° C. or lower.
- Tg glass transition temperature
- the thermosetting resin component is preferably an epoxy resin composition from the viewpoint of properties such as hygroscopicity, thermal expansion and curing shrinkage.
- the thermosetting resin component may be characterized by not containing a silicone resin.
- epoxy resin compositions that are generally used can be used for the epoxy resin of the present invention.
- Preferred epoxy resin compositions include difunctional or higher polyfunctional epoxy resins such as bisphenol type epoxy resins (bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol AD type epoxy resin), Novo Examples thereof include a rack type epoxy resin (phenol nopolac type epoxy resin, cresol nopolac type epoxy resin), naphthalene type epoxy resin, biphenyl type epoxy resin, and cyclopentagen type epoxy resin. These epoxy resins may be used as a mixture of two or more.
- the epoxy resin can be selected in consideration of viscosity and physical properties, but it is most preferable to include bisphenol A type epoxy resin in the polyfunctional epoxy resin at a rate of 10 to; 100%, especially 50 to 100%. preferable.
- the above epoxy resins further include rubber-modified epoxy resins (polyisoprene-modified epoxy resins, polychloroprene-modified epoxy resins, polybutadiene-modified epoxy resins, etc.), urethane-modified epoxy resins, and dimer acid-modified epoxy resins.
- One or more of the modified epoxy resins selected from the above can be added as appropriate.
- a monofunctional epoxy resin as a reactive diluent component (or a crosslinking density modifier) (preferably all It can be added at a ratio of about weight% in the total epoxy resin).
- a monofunctional epoxy resin a compound having one epoxy group in the molecule and having an alkyl group having 6 to 28 carbon atoms is preferable.
- the alkyl group may have, for example, 8 or more carbon atoms, 10 or more carbon atoms, or 12 or more carbon atoms.
- the carbon number of the alkyl group may be, for example, 26 or less, 24 or less, or 22 or less.
- At least one resin selected from alkyl glycidyl ethers, fatty acid glycidyl esters, and alkylphenol glycidyl ethers having the carbon number in the above range can be used.
- two or more types of monofunctional epoxy resins that are preferred for ricidyl ether can also be used in combination.
- (d) as the reactive diluent component in addition to this, one or more kinds selected from the group consisting of monoepoxide, geoikido, triepoxide, polyol, polythiol, polycarboxy and urethane Compounds can also be used.
- thermosetting resin component those suitable for curing the (a) thermosetting resin component to be used are used.
- a compound selected from the group consisting of an amine compound, an imidazole compound, a modified amine compound, a modified imidazole compound, a polyphenol compound, and a sulfur-containing compound (b) ) Preferable to use as a curing agent component.
- Examples of the amine compound include aliphatic polyamines such as dicyandiamide, diethylenetriamine, triethylenetetramine, and jetylaminopropylamine, aromatic polyamines such as m-xylenediamine and diaminodiphenylmethane, isophorone diamine, Examples thereof include alicyclic polyamines such as mensendiamine and polyamides.
- imidazole compound examples include 2-methylimidazole, 2-ethyl-4-methylimidazole, 2-phenylimidazole, and the like.
- Examples of the modified amine compound include an epoxy compound-added polyamine obtained by adding an amine compound to an epoxy compound.
- examples of the modified imidazole compound include an imidazole adduct obtained by adding an imidazole compound to an epoxy compound. Can be mentioned.
- a latent curing agent used for a one-component epoxy resin is preferable.
- a latent curing agent means that even if the latent curing agent is mixed with an epoxy resin, curing does not substantially proceed while a temperature near normal temperature is applied, and the temperature exceeds a predetermined temperature. It is a kind of curing agent in which the progress of curing is recognized only when heated to a temperature.
- modified amine compound-based curing agents are particularly known.
- the modified amine in an amount of 5 to 95% by weight based on the total weight of the curing agent and dicyandiamide in an amount of 95 to 5% by weight based on the total weight of the curing agent.
- the amount of the curing agent is usually 3 to 60 parts by weight with respect to 100 parts by weight of the epoxy resin. Yes, preferably 5 to 40 parts by weight.
- the form of the sealing material of the present invention may be a one-pack type in which all of the constituent components are mixed before use, but before use (a) a thermosetting resin component and (b ) It may be a two-component type in which the curing agent component is stored separately and mixed during use.
- the form of such a sealing material can be determined according to the composition of (a) the thermosetting resin component and (b) the curing agent component, based on the technical level known to those skilled in the art.
- the sealing material of the present invention includes (c) one component of an insulating filler: alumina, silica, alumina, boron nitride, aluminum nitride, silicon nitride, magnesia, magnesium silicate, talc, calcium carbonate, And one or more compounds selected from the group consisting of calcium hydroxide and the like can be used.
- One component of the insulating filler is blended mainly for the purpose of controlling the coefficient of thermal expansion, fluidity, and adhesion.
- One component of the insulating filler is also formulated for the purpose of serving as a function of adjusting and / or optimizing viscosity and fluidity.
- the sealing material of this invention can contain an additive further if desired. Such additives include curing accelerators (polyamines, etc.), dyes, pigments and the like.
- the cured sealing material of the present invention is 80 ° C or higher, and in some cases, for example, 70 ° C or higher, 60 ° C or higher, 50 ° C or higher, 40 ° C or higher, 30 ° C or higher, 20 It preferably has a glass transition temperature (Tg) of at least 10 ° C and at least 10 ° C.
- Tg glass transition temperature
- the sealing material after curing of the present invention is 100 ° C or less, and in some cases, for example, 90 ° C or less, 80 ° C or less, 70 ° C or less, 60 ° C or less, 50 ° C or less, 40 ° It is preferable to have a glass transition temperature (Tg) of C or lower, 30 ° C or lower, 20 ° C or lower, 10 ° C or lower, or 0 ° C or lower! /.
- Tg glass transition temperature
- the cured sealing material of the present invention is in one embodiment! /, And has a storage elastic modulus of 500 MPa or more at a temperature lower than the glass transition temperature (Tg), and In addition, this means that it has a storage elastic modulus of 200 MPa or less at a temperature higher than the glass transition temperature (Tg).
- the cured sealing material of the present invention is preferably! /, In an embodiment! /, And has a storage elastic modulus of 800 MPa or more at a temperature lower than the glass transition temperature (Tg). This is characterized by the power S.
- the cured sealing material of the present invention is preferred! /, In an embodiment! /, Depending on the glass transition temperature (Tg). It can be characterized by a storage elastic modulus force GPa or higher at a lower temperature.
- the cured sealing material of the present invention is preferred! /, In an embodiment! /, And has a storage elastic modulus of 50 MPa or less at a temperature higher than the glass transition temperature (Tg). It is characterized by the fact that the power S is used.
- the cured sealing material of the present invention is preferred! /, In an embodiment! /, And has a storage elastic modulus of not more than lOMPa at a temperature higher than the glass transition temperature (Tg). It is characterized by the fact that the power S is used.
- the sealing material of the present invention has the composition as described above, and the temperature is set within a temperature range including the glass transition point (Tg) of the cured sealing material.
- Tg glass transition point
- the ratio ( ⁇ ⁇ / ⁇ ) of the change ( ⁇ E) of the storage elastic modulus to the temperature change ( ⁇ ) is 30 MPa / ° C or less, and 0 It is characterized by showing a value in the range of 5MPa / ° C or more.
- the rate of change in storage modulus ( ⁇ ⁇ / ⁇ ) (hereinafter also referred to as the rate of change in storage modulus) is preferably 10 MPa / ° C or less, particularly preferably lMPa / ° C or less. It may be. In some cases, the rate of change of the storage elastic modulus is preferably 20 MPa / ° C or more, for example, 25 MPa / ° C or more. When the rate of change of the storage elastic modulus is within this range, plot the value of the storage elastic modulus (E) measured corresponding to the temperature rise, with the temperature on the horizontal axis and the storage elastic modulus on the vertical axis.
- the rate of change in storage modulus can be expressed as the slope of a straight line.
- the sealed electronic component is sealed while heating to a predetermined temperature. Place a jig or similar tool near the boundary between the stopper material and the substrate to remove the sealing material from the substrate. In this repair operation, if the sealing material has a gentle gradient as in the present invention, a large stress cannot be applied in a short time, that is, an impact force or an excessive force is applied.
- the sealing material can be peeled from the substrate by pressing the jig with the minimum necessary force. Therefore, when the sealing material of the present invention is used, the so-called base material destruction is not caused during the repair operation. Thus, the sealing material and the substrate can be separated in a so-called interface failure manner. Thus, the substrate and / or electronic component and / or semiconductor device can be recovered without substantial damage while sacrificing the sealing material. Substrates recovered substantially intact in this way can be recycled or reused after being treated as necessary. If the rate of change in storage modulus exceeds 30 MPa / ° C, the property of sealing under low stress cannot be fully exhibited. On the other hand, if the rate of change in storage elastic modulus is less than 0.5 MPa / ° C, sufficient reliability as an elastic sealing material cannot be obtained.
- FIG. 1 A graph showing the change rate ( ⁇ E / ⁇ ) of the storage elastic modulus with respect to the temperature change as described above is shown in FIG.
- This graph shows 0.8MPa / in the temperature range including the glass transition temperature (Tg). Show the value of ( ⁇ E / ⁇ ) of the same! /
- the temperature range that includes this glass transition point (Tg) is the temperature range that sandwiches the glass transition point (Tg), and it can be replaced by a temperature lower than the glass transition point (Tg) and the glass transition point. It means a temperature in the range between the temperature higher than (Tg).
- the sealing material that covers at least the junction between the circuit board and the electronic component and / or the semiconductor device is used at a practical use temperature. Since a relatively high adhesive strength (for example, 0.5 kg / mm 2 ) is maintained, the joint can be suitably sealed. On the other hand, if the sealing material is sufficiently softened when heated to, for example, about 220 ° C. after sealing, the sealing material adhering to the electronic component and / or the semiconductor device to be repaired is relatively It can be easily separated. Therefore, this sealing material can show suitable repairability after sealing.
- the sealing material of the present invention has an elastic modulus of lOOMPa or higher, preferably an elastic modulus of 500 MPa or higher, more preferably an elastic modulus of 800 MPa or higher, at a temperature T1 lower than the glass transition point (Tg). More preferably, it can be characterized by exhibiting an elastic modulus of 1 GPa or more. Furthermore, the sealing material of the present invention has an elastic modulus of 200 MPa or less, preferably 50 MPa or less, more preferably 1 OMPa or less at a temperature T2 higher than the glass transition point (Tg). It can be characterized by showing. The sealing material of the present invention showing such an elastic modulus in the temperature range lower and higher than the glass transition point (Tg) can exhibit suitable sealing properties.
- the sealing material of the present invention may exhibit suitable repair properties. It can.
- the lower limit temperature (for example, temperature T1) of the temperature range in which the rate of change of storage modulus ( ⁇ E / ⁇ ) with respect to temperature change is measured is higher than 50 ° C.
- temperature T2 is lower than 200 ° C
- the elastic modulus of the sealing material changes from a value greater than or equal to lOOMPa at the lower temperature T1 to less than or equal to lOMPa at the higher temperature T2.
- the value of change rate of storage elastic modulus ( ⁇ E / ⁇ ) with respect to temperature change is a value that is too larger than the preferred value of the present invention.
- the elastic modulus changes too rapidly near the glass transition point (Tg), so that sealing at low stress cannot be achieved. The possibility of damaging the parts increases.
- the sealing material can exhibit good repairability at the peeling temperature of the bonding material.
- Tg glass transition point
- the sealing material is sufficiently softened at the melting point of the solder material of about 220 ° C. And can be easily peeled off.
- the sealing material when mounted a fragile electronic component and / or semiconductor device, it is possible to seal the electronic component and / or the semiconductor device itself at a low stress simultaneously with the joint portion. Also, when heated to the temperature at which the bonding material peels, generally the melting point of the bonding material, the sealing material is sufficiently softened and easily peeled off, and the electronic component and / or the semiconductor device can be removed at the same time as the sealing material is removed. .
- this application relates to a junction between an electrode of a circuit board and an electronic component and / or an electrode of a semiconductor device attached to the electrode, and the circuit board and the electronic component.
- An invention of a method for mounting an electronic component on a substrate, comprising sealing between a semiconductor device and / or a semiconductor device by the sealing material according to the first invention of the present application is provided. Specifically, the implementation method is
- This application is also an invention of a method of mounting an electronic component on a substrate.
- (ii) a step of supplying a sealing material containing a thermosetting resin composition to the conductive connecting portion and the periphery thereof, and after curing, from the glass transition point (Tg) of the cured sealing material
- the storage elastic modulus (E) is measured while raising the temperature from T1, and the ratio ( ⁇ E / ⁇ ) of the change in storage elastic modulus ( ⁇ E) to the temperature change ( ⁇ ) is 0 ⁇ 5MPa / ° C Supplying a sealing material in the range of ⁇ 30 MPa / ° C;
- an electronic component is disposed at a predetermined position on the circuit board, and a conductive connection portion is formed between corresponding electrodes of the circuit board and the electronic component.
- the present invention provides an invention of a mounting structure that is sealed.
- the sealing material according to the invention of this application is used when a relatively fragile electronic component and / or semiconductor device is mounted on a circuit board, and its joint portion and electronic component and / or semiconductor. If the device can be sealed with a relatively low stress, it can exhibit good characteristics and good initial and durable sealing characteristics. On the other hand, if this sealing material can be repaired properly even after sealing! /, It can exhibit the strength (repairability). That is, according to this sealing material, the joint part of the electronic component and / or the semiconductor device mounted on the circuit board and the electronic component and / or the semiconductor device are sealed on the substrate for a relatively long period of time with low stress. Can do.
- the damage of the parts in the sealing process and the damage of the parts due to the temperature cycle are greatly reduced, and the occurrence of the damage is reduced. It can be substantially prevented. Furthermore, if necessary, the cured sealing material is sealed by sealing its joints and electronic components and / or semiconductor devices by heating to a temperature above the glass transition point (Tg). Therefore, it maintains a suitable repair property that it can be removed relatively easily.
- Tg glass transition point
- the joint and the electronic component and / or the semiconductor device can be sealed with relatively low stress. Therefore, it is possible to mount the electronic component and / or the semiconductor device while substantially preventing the damage of the component in the sealing process and the occurrence of the damage of the component due to the temperature cycle. Furthermore, repair can be suitably performed even after sealing.
- the mounting structure on which the electronic component and / or the semiconductor device sealed with the sealing material according to the first invention is mounted includes the junction and the electronic component. And / or because the semiconductor device is sealed with relatively low stress! /, It is possible to substantially prevent the occurrence of damage during the manufacturing stage and during use. By sealing with relatively low stress, good initial sealing characteristics and durable sealing characteristics can also be exhibited. Accordingly, it is possible to obtain a mounting structure on which electronic components and / or semiconductor devices are mounted by substantially preventing the occurrence of damage to the components in the sealing process and the occurrence of damage to the components by being subjected to a temperature cycle. it can. Furthermore, repair can be suitably performed even after sealing.
- the sealing material according to the invention of the present application can maintain a durable seal with low stress even after sealing for a conforming product, while repairing a non-conforming product is relatively easy. It is possible to achieve the seemingly contradictory effect of being able to do it with force S.
- FIG. 1 is a schematic diagram showing a state where a semiconductor chip is mounted on a circuit board.
- FIG. 1 schematically showing a preferred embodiment of the present invention.
- FIG. 1 schematically shows a semiconductor device 1 and a glass epoxy circuit board 6 to which the semiconductor device 1 is to be attached.
- the semiconductor device 1 is provided with solder balls (electrodes) 2, and lands (electrodes) 5 are provided on the circuit board 6 corresponding to the respective electrodes.
- the solder ball (electrode) 2 on the semiconductor device 1 side and the land (electrode) 5 on the circuit board 6 side are joined by the solder 3 to form an electrical connection.
- a sealing material 4 is applied between the joint portion by solder 3 and the circuit board 6 around the joint portion and the semiconductor device 1, and a seal is formed between the circuit board 6 and the semiconductor device 1 around the joint portion and the periphery thereof. It has been stopped.
- a specific mounting operation was performed as follows. Wiring-thickness 1. 6mm glass Epoxy substrate with cream solder (Senju Metal Industry Co., Ltd., M705-221B M5—K) applied, chip size 13mm XI 3mm package, electrode diameter ( (Diameter) 0.5 mm, electrode pitch 0 ⁇ 8 mm, CSP with carrier substrate made of alumina was soldered by reflow.
- thermosetting resin composition is applied to the periphery of the joint between the CSP and the circuit board using a dispenser, followed by heating at 80 ° C for 30 minutes, and further raising the temperature to 150 ° C.
- the thermosetting resin composition was sufficiently cured by heating for a minute.
- the heated thermosetting resin composition has sufficient fluidity before being cured and penetrates into the gap between the CSP and the circuit board.
- the insulating filler slightly The thermosetting resin composition was cured in the settling state. Therefore, the gap between the CSP and the circuit board was sealed to obtain a desired CSP mounting structure.
- the obtained cured product had a Tg of 40 ° C.
- the initial sealing characteristics were evaluated as follows. Cracks are generated on the surface of the CSP by observing the sealing part by visual observation and / or microscopic observation of the CSP mounting structure in which the thermosetting resin composition is cured and sealing of the joint is completed We examined whether abnormalities such as the above were observed. As a result of inspection of 100 test samples, 0 test samples were found to have anomaly ⁇ (passed), test samples with anomaly were found;! To 3 test samples ⁇ (passed practically) ), 4 or more test samples with abnormalities were evaluated as X (failed).
- Durable sealing characteristics Evaluation of durable sealing characteristics (La, so-called heat cycle test) was performed as follows. A CSP mounting structure with an initial sealing property of ⁇ is evaluated as one cycle from -40 ° CX 30 minutes to + 85 ° CX 30 minutes with a heat cycle tester (compliant with JISC60068, manufactured by Etak). It was subjected to a temperature cycle test. When the specified number of cycles was reached, a continuity test of the test sample was performed to confirm the electrical connection between the CSP and the substrate. Those that were conducting for 1000 cycles or more were evaluated as ⁇ (passed), and those that became non-conductive due to disconnection before reaching 1000 cycles were evaluated as X (failed). All of the semiconductor element mounting structures of the examples described later were evaluated as passing even after exceeding 1000 cycles.
- the glass transition point (Tg) and the storage elastic modulus E ′ of the cured sealing material were measured using a dynamic viscoelasticity measuring device (DVA-200, manufactured by IT Measurement & Control Co., Ltd.). Test sample dimensions: Measured under the conditions of 20 mm in the vertical direction, 5 mm in the horizontal direction, l mm in the height direction, the heating rate: 10 ° C / min, tensile mode, 10 Hz, and automatic static load. The peak top temperature of the loss modulus E ” was measured as the glass transition point (Tg).
- DVA-200 dynamic viscoelasticity measuring device
- the repairability of the mounting structure in which the CSP was mounted with the sealing material of the present invention was evaluated. From the 100 CSP mounting structures that have been mounted as described above, 10 CSP mounting structures are randomly extracted, and a heatable suction tool is pressed against the upper surface of the CSP for suction. The tool was heated to 250 ° C for 1 minute. After that, when a metal separation lever was inserted between the CSP and the circuit board and the CSP was lifted, the sealing material was sufficiently softened, and the CSP was easily removed while easily breaking the sealing material. I was able to.
- the glass epoxy circuit board after removing the CSP is placed on a hot plate and kept at a temperature of about 100 ° C while using a solvent (for example, PS-1 manufactured by Daiichi Kogyo Seiyaku Co., Ltd., 7360 manufactured by Loctite).
- a solvent for example, PS-1 manufactured by Daiichi Kogyo Seiyaku Co., Ltd., 7360 manufactured by Loctite.
- the sealing material left on the glass epoxy circuit board was swollen and scraped with a plastic spatula.
- the solder material remaining on the glass epoxy circuit board was removed using solder suction / braiding wire.
- heating may be performed using a far infrared heater or the like instead of the operation of placing on a hot plate and keeping the temperature at about 100 ° C.
- Cream solder was applied again on the glass epoxy circuit board from which the CSP was removed in this way, and a new CSP was mounted. At this time, cream solder may be printed on the new CSP side.
- thermosetting resin composition was applied to the periphery of the CSP joint and subjected to heat treatment to cure the thermosetting resin composition to obtain a CSP mounting structure.
- the mounting structure in which the CSP is mounted after being repaired in this way, as well as the mounting structure that has not undergone the repair, is also securely connected and will not be repaired even in the heat shock test. As with the case, excellent characteristics were exhibited.
- thermosetting resin component 100 parts by weight of bisphenol A type epoxy resin as thermosetting resin component, Corresponding (b) 8 parts by weight of dicyandiamide as a hardener component, (c) 0, 10 parts by weight of alumina filler with 50% average particle size 5 ⁇ m as one component of insulating filler, (d) Reactive diluent (
- a sealing material was prepared by mixing 10 parts by weight of alkyl glycidyl ether as a crosslinking regulator component and 1 part by weight of a curing accelerator suitable for the combination of the thermosetting resin component and the curing agent component. The viscosity immediately after mixing was 28000 mPa's.
- the obtained sealing material was cured under the above-described sealing operation conditions, and the glass transition point (Tg) and the storage elastic modulus E of the cured sealing material were measured.
- the glass transition point (Tg) was 2 ⁇ 8 ° C.
- the storage elastic modulus E was measured while increasing the temperature from the temperature Tl (50 ° C) to the temperature T2 (200 ° C), the temperature is plotted on the horizontal axis, and the storage elastic modulus E indicated on a logarithmic scale is plotted on the vertical axis.
- a graph inflected into an S shape as shown in Fig. 2 was obtained.
- the storage elastic modulus E does not show a substantial change with respect to the temperature.
- Tg glass transition point
- the glass transition point (Tg) and the storage elastic modulus E were measured in the same manner as in Example 1. The results are shown in Table 1.
- the cured product had a glass transition temperature (Tg) in a temperature range of 80 ° C or higher and 50 ° C or lower.
- thermosetting resin component (a) bisphenol A type epoxy resin is used as the thermosetting resin component, (b) acid anhydride is used as the corresponding (b) curing agent component, (c) one insulating filler component and (d
- the reactive diluent (crosslinking regulator) component was the same as in Example 1.
- the glass transition point (Tg) of the cured product was 164 ° C in Comparative Example 1 and 90 ° C in Comparative Example 2.
- the reflow simulator (Coars) was used for the curing process of the sealing material and the subsequent cooling process for producing the respective mounting structures obtained by Examples;! -11 and Comparative Examples;!-2. Was used for observation. In the process, examples;! No power was observed for the sealing materials of 11 to 11. For the sealing materials of Comparative Examples 1 and 2, the temperature was raised to 150 ° C (curing process) and then room temperature. In the cooling process of cooling to (about 25 ° C), it was observed that cracks occurred on the surface of the CSP at a temperature around 30 ° C, which is lower than its glass transition temperature (Tg). .
- the sealing materials of Examples 1 to 11 each have a glass transition temperature (Tg) in the range of 80 ° C to 50 ° C.
- the sealing material can maintain a so-called rubber state for substantially the majority of the temperature range subject to temperature changes, while the sealing materials of Comparative Examples 1 and 2 are in the range of 50 ° C or higher. Since it has a glass transition temperature (Tg), it is considered that the sealing material exists in a glassy state in the low temperature region where the sealing material is subject to temperature changes. It is done. In other words, the encapsulating material cured by heating keeps the encapsulating material itself firmly adhered to the CSP and the circuit board in the cooling process, and all of them shrink together.
- Tg glass transition temperature
- the encapsulant In the temperature range below the glass transition temperature (Tg), the encapsulant becomes glassy, and the CSP, circuit board, and encapsulant in the glassy state are distorted because they try to shrink with their inherent linear expansion coefficients. Weakest! /, CSP (electronic components and / or semiconductor devices) is considered to be damaged without enduring the strain.
- Tg glass transition temperature
- the sealing material of each embodiment of the present invention is a sealing material having a wide temperature range in a rubber state, that is, a sealing material having a lower glass transition temperature (Tg).
- Tg glass transition temperature
- the repairability of the mounting structure in which the CSP was mounted with the sealing material of the present invention was evaluated. From the 100 CSP mounting structures that have been mounted as described above, the CSP mounting structure Ten structures were randomly extracted, and a heatable suction tool was pressed against the upper surface of the CSP, and the suction tool was heated to 250 ° C for 1 minute. After that, when a metal separation lever (separation jig) was inserted between the CSP and the circuit board and the CSP was lifted, the sealing material was sufficiently softened and the sealing material was easily broken. However, the CSP could be removed easily.
- separation jig separation lever
- the glass epoxy circuit board after removing the CSP is placed on a hot plate and kept at a temperature of about 100 ° C, and a solvent (for example, PS-1 manufactured by Daiichi Kogyo Seiyaku Co., Ltd., 7360 manufactured by Loctite Co., Ltd.) is used.
- a solvent for example, PS-1 manufactured by Daiichi Kogyo Seiyaku Co., Ltd., 7360 manufactured by Loctite Co., Ltd.
- the sealing material left on the glass epoxy circuit board was swollen and scraped with a plastic spatula. Also, the solder material remaining on the glass epoxy circuit board was removed using solder suction / braiding wire.
- the repair operation was carried out 10 times for the mounting structure of each example.
- scraping operation of the sealing material with a spatula and removal of the solder material by the braiding wire for sucking the solder The operation was smoothly performed as a series of operations within 5 minutes. Therefore, this repair operation is a sufficiently practical operation.
- heating may be performed using a far infrared heater or the like instead of the operation of placing on a hot plate and keeping the temperature at about 100 ° C.
- Cream solder was applied again on the glass epoxy circuit board from which the CSP was removed in this manner, and a new CSP was mounted. At this time, cream solder may be printed on the new CSP side.
- thermosetting resin composition was applied to the periphery of the CSP joint and subjected to heat treatment to cure the thermosetting resin composition to obtain a CSP mounting structure.
- the mounting structure in which the CSP is mounted after being repaired in this way, as well as the mounting structure that has not been repaired, is also securely connected, and will not be repaired in the heat shock test. As with the case, excellent characteristics were exhibited.
- thermosetting resin component 100 parts by weight of bisphenol A type epoxy resin as thermosetting resin component, corresponding to this (b) 8 parts by weight of dicyandiamide as curing agent component, (c) 50% average particle as one component of insulating filler 0, 10 parts by weight of an alumina filler with a diameter of 5 ⁇ m, (d) a reactive diluent (crosslinking A sealing material was prepared by mixing 10 parts by weight of an alkyl glycidyl ether as a modifier component and 1 part by weight of a curing accelerator suitable for the combination of the thermosetting resin component and the curing agent component. The viscosity immediately after mixing was 28000 mPa's.
- the obtained sealing material was cured under the sealing operation conditions described above, and the glass transition point (Tg) and the storage elastic modulus E of the cured sealing material were measured.
- the glass transition point (Tg) was -48 ° C.
- the storage elastic modulus E is measured while the temperature is increased from temperature T1 (50 ° C) to temperature T2 (200 ° C), the temperature is plotted on the horizontal axis, and the storage elastic modulus E shown on a logarithmic scale is plotted on the vertical axis.
- a graph inflected into an S shape as shown in Fig. 2 was obtained.
- the storage elastic modulus E did not change substantially with respect to the temperature change, but the temperature Tl In the temperature range including the glass transition point (Tg) from (50 ° C) to the temperature T2 (200 ° C), there was a relatively large change as shown in the figure.
- Example 13 (a) a bisphenol A type epoxy resin was used as a thermosetting resin component, and (b) a combination of dicyandiamide and a modified amine was used as a curing agent component. (c) One component of the insulating filler and (d) the reactive diluent (crosslinking regulator) component were the same as in Example 11.
- a urethane resin composition was used as (a) a thermosetting resin component and (b) a curing agent component.
- (C) One component of the insulating filler was the same as in Example 11.
- the sealing material of Comparative Example 3 has a glass transition point (Tg) of 150 ° C after curing, and the storage elasticity against temperature change measured near the glass transition point (Tg).
- the rate of change in rate ( ⁇ E / ⁇ T) was 33 MPa / ° C.
- the sealing material of Comparative Example 4 has a glass transition point of 160 ° C after curing.
- the change rate of storage elastic modulus ( ⁇ E / ⁇ T) with respect to temperature change measured near the glass transition point (Tg) was 40 MPa / ° C.
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Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/517,460 US20100006329A1 (en) | 2006-12-04 | 2007-12-03 | Sealing material and mounting method using the sealing material |
| JP2008548278A JP5143020B2 (ja) | 2006-12-04 | 2007-12-03 | 封止材料及び実装構造体 |
| CN2007800446398A CN101553910B (zh) | 2006-12-04 | 2007-12-03 | 密封材料以及使用该密封材料的安装方法 |
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| JP2006326819 | 2006-12-04 | ||
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| JP2006-331733 | 2006-12-08 |
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| PCT/JP2007/073332 Ceased WO2008069179A1 (ja) | 2006-12-04 | 2007-12-03 | 封止材料及びその封止材料を用いる実装方法 |
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| JP2010226040A (ja) * | 2009-03-25 | 2010-10-07 | Asahi Kasei E-Materials Corp | 太陽電池モジュール |
| US20120046390A1 (en) * | 2010-08-18 | 2012-02-23 | Jui-Hung Chen | Epoxy resin composition |
| JP2013120804A (ja) * | 2011-12-06 | 2013-06-17 | Daicel Corp | シート状カバリング剤、カバリング方法又は電子デバイスの製造方法 |
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| JP2009212104A (ja) * | 2008-02-29 | 2009-09-17 | Toshiba Corp | プリント回路板の製造方法、プリント回路板およびそのプリント回路板を備えた電子機器 |
| CN102224198A (zh) * | 2008-11-21 | 2011-10-19 | 汉高公司 | 相分离的可固化组合物 |
| MX2013003295A (es) | 2010-09-23 | 2013-05-22 | Henkel Corp | Composicion epoxica resistente a vapor quimico. |
| KR20150097359A (ko) * | 2014-02-18 | 2015-08-26 | 주식회사 엘지화학 | 봉지 필름 및 이를 포함하는 유기전자장치 |
| DE102017223046A1 (de) * | 2017-12-18 | 2019-06-19 | Zf Friedrichshafen Ag | Verfahren zum Aufwärmen eines pneumatischen Kupplungsstellers |
| CN108981121A (zh) * | 2018-05-25 | 2018-12-11 | 广州市设计院工程建设总承包公司 | 空调系统安装方法 |
| WO2021033329A1 (ja) * | 2019-08-21 | 2021-02-25 | ナミックス株式会社 | エポキシ樹脂組成物 |
| JP7770269B2 (ja) * | 2022-08-02 | 2025-11-14 | 三菱電機株式会社 | 半導体装置および半導体装置の製造方法 |
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| JP2010226040A (ja) * | 2009-03-25 | 2010-10-07 | Asahi Kasei E-Materials Corp | 太陽電池モジュール |
| US20120046390A1 (en) * | 2010-08-18 | 2012-02-23 | Jui-Hung Chen | Epoxy resin composition |
| JP2013120804A (ja) * | 2011-12-06 | 2013-06-17 | Daicel Corp | シート状カバリング剤、カバリング方法又は電子デバイスの製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2008069179A1 (ja) | 2010-03-18 |
| US20100084174A1 (en) | 2010-04-08 |
| JP5143019B2 (ja) | 2013-02-13 |
| US20100006329A1 (en) | 2010-01-14 |
| US8217275B2 (en) | 2012-07-10 |
| JP5143020B2 (ja) | 2013-02-13 |
| JPWO2008069178A1 (ja) | 2010-03-18 |
| WO2008069178A1 (ja) | 2008-06-12 |
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