WO2016031555A1 - マレイミドフィルム - Google Patents
マレイミドフィルム Download PDFInfo
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- WO2016031555A1 WO2016031555A1 PCT/JP2015/072718 JP2015072718W WO2016031555A1 WO 2016031555 A1 WO2016031555 A1 WO 2016031555A1 JP 2015072718 W JP2015072718 W JP 2015072718W WO 2016031555 A1 WO2016031555 A1 WO 2016031555A1
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- maleimide
- adhesive film
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- resin
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/10—Adhesives in the form of films or foils without carriers
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J179/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09J161/00 - C09J177/00
- C09J179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C09J179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C09J179/085—Unsaturated polyimide precursors
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J179/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09J161/00 - C09J177/00
- C09J179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C09J179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J201/00—Adhesives based on unspecified macromolecular compounds
- C09J201/02—Adhesives based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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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
- H01L21/52—Mounting semiconductor bodies in containers
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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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6835—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L21/6836—Wafer tapes, e.g. grinding or dicing support tapes
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- 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
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2479/00—Presence of polyamine or polyimide
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2479/00—Presence of polyamine or polyimide
- C09J2479/08—Presence of polyamine or polyimide polyimide
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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
- H01L2224/80—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
- H01L2224/83—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
- H01L2224/838—Bonding techniques
- H01L2224/8385—Bonding techniques using a polymer adhesive, e.g. an adhesive based on silicone, epoxy, polyimide, polyester
Definitions
- the present invention relates to a maleimide adhesive film suitable for manufacturing electronic devices, integrated circuits, semiconductor elements, passive elements, solar cells, solar modules and / or light emitting diodes.
- the adhesive resin composition is used for various purposes in the manufacture and assembly of microelectronic devices such as semiconductor packages. More prominent applications include bonding electronic components such as integrated circuit chips to lead frames or other substrates, and bonding circuit packages or assembly to printed wiring boards.
- the adhesive resin composition flows so that bubbles (voids) do not enter the boundary with the adherend, and fills the adherends.
- sealing and reflow after the adhesion step It is required that voids are not generated by heating in a mounting process or the like. In the device in which the void has occurred, peeling occurs at the boundary, and the situation is not sufficient as reliability. Further, if the adhesion is not sufficient, wire bonding failure occurs, or the sealing resin enters the boundary during sealing.
- Patent Document 1 discloses an adhesive film for a semiconductor made of a glycidyl group-containing acrylic copolymer and a high molecular weight epoxy resin.
- the present applicant provides a maleimide film to which a maleimide resin, which is a resin having excellent resistance to thermal deterioration, is applied.
- this invention relates to the maleimide adhesive film characterized by including the maleimide resin and the radical initiator whose 1-hour half-life temperature is 140 degreeC or more.
- the maleimide resin is preferably a maleimide resin selected from the following general formulas (1) to (4) or having a repeating unit of the general formula (5) or (6).
- R 1 and Q 1 are each independently an unsubstituted or substituted aliphatic, alicyclic, alkenyl, aryl, heteroaryl, siloxane, poly (butadiene-co-acrylonitrile) and poly (alkylene oxide
- R 5 is independently derived from an unsubstituted or substituted aliphatic, alicyclic, alkenyl, aryl, heteroaryl, siloxane, poly (butadiene-co-acrylonitrile) and poly (alkylene oxide).
- Q 3 is each independently derived from an unsubstituted or substituted aliphatic, alicyclic, alkenyl, aryl, heteroaryl, siloxane, poly (butadiene-co-acrylonitrile) and poly (alkylene oxide).
- X 13 and X 14 are each independently H or an alkyl group having 1 to 6 carbon atoms, and Y is a substituted or unsubstituted aliphatic or aromatic group.
- X 15 and X 16 are each independently H or a carbon number of 1-6.
- any one of R 1 , R 2 , R 5 , Q 1 , Q 2 , Q 3 , Q 4 , and Q 5 preferably has a cyclic structure.
- the siloxane moiety is dimethylsiloxane, methylphenylsiloxane, diphenylsiloxane or a combination thereof.
- the structures derived from the above substituted aliphatic, alicyclic, alkenyl, aryl, heteroaryl, siloxane, poly (butadiene-co-acrylonitrile) and poly (alkylene oxide) are alkyl groups, alkenyl groups, alkynyl groups.
- the maleimide resin is preferably contained in an amount of 50% by mass or more of the resin component.
- a filler is included.
- the present invention relates to a maleimide adhesive film with a dicing tape, wherein the maleimide film is laminated on a dicing tape.
- the present invention has succeeded in providing a maleimide film using a highly reliable maleimide resin that is highly resistant to thermal history and an adhesive film with a dicing tape obtained by laminating the maleimide film.
- Adhesive film with dicing tape using the adhesive of the present invention Cross-sectional schematic diagram of an adhesive film with dicing tape in a different form from FIG.
- thermosetting in the “thermosetting” herein is irreversible which results in a single three-dimensional network in which a compound, composition, etc. has greater strength and less solubility compared to a non-cured product.
- the reaction refers to a thermosetting property, which is a characteristic that can be cured typically by a chemical reaction (for example, epoxy ring-opening, radical polymerization) via heat.
- crosslinking means that two or more elements, molecular groups, compounds, or other oligomers or polymers are bonded to each other, and the chain becomes long.
- Crosslinking can typically be performed upon exposure to light or energy rays, or upon heating. Some cross-linking processes can be performed at temperatures below room temperature. As the crosslink density increases, the material properties can change from curable to thermoplastic.
- C36 refers to all possible structural isomers of 36 aliphatic moieties including branched and cyclic isomers having up to 3 carbon-carbon double bonds in the main chain. Point to.
- One non-limiting example of the part referenced by the definition of “C36” is a part comprising a cyclohexane-based core and four long “arms” attached to the core, as shown by the following general formula (8): It is.
- heterocyclic group is a cyclic, ie, ring-structure-containing group that includes one or more heteroatoms (eg, N, O, S, etc.) as part of the ring structure, and 3 to 14
- heteroatoms eg, N, O, S, etc.
- substituted heterocyclic group refers to a heterocyclic group having one or more substituents as described above.
- imide means a functional group having two carbonyl groups bonded to a primary amine or ammonia.
- the general formula of the imide of the present invention is as shown in the following general formula (9). Note that R, R ′, and R ′′ refer to virtually any functional group that can be taken.
- polyimide is a polymer of an imide group-containing monomer.
- the polyimide is typically linear or cyclic.
- Non-limiting examples of linear and cyclic (eg, aromatic heterocyclic polyimide) polyimides are as shown in general formula (10) below. Note that R represents virtually any functional group that can be taken.
- maleimide refers to an N-substituted maleimide having a structure represented by the following general formula (11).
- R is an aromatic, heteroaromatic, aliphatic, or polymer moiety.
- X 19 and X 20 are each independently H or an alkyl group having 1 to 6 carbon atoms.
- bismaleimide or “BMI” means a polyimide compound in which two imide moieties are linked by crosslinking.
- the general structure is as shown in the following general formula (12).
- R is an aromatic, heteroaromatic, aliphatic, or polymer moiety.
- X 21 to X 24 are each independently H or an alkyl group having 1 to 6 carbon atoms.
- BMI can be cured by addition, thereby avoiding problems due to the formation of volatile materials.
- BMI can be cured by vinyl-based polymerization of pre-polymers terminated with two maleimide groups.
- imido-extended means that the compound contains at least one imide moiety at a position that is not a terminal of the molecule.
- pendant means that the structure described above is bonded to the polymer backbone by at least one covalent bond.
- thermoset resin When incorporated into thermoset compositions, imide-extended maleimide resins, particularly those listed below, reduce brittleness and increase toughness in the composition without sacrificing thermal stability. .
- R 1 and Q 1 are each independently an unsubstituted or substituted aliphatic, alicyclic, alkenyl, aryl, heteroaryl, siloxane, poly (butadiene-co-acrylonitrile) and poly (alkylene oxide
- R 5 is independently derived from an unsubstituted or substituted aliphatic, alicyclic, alkenyl, aryl, heteroaryl, siloxane, poly (butadiene-co-acrylonitrile) and poly (alkylene oxide).
- Q 3 is each independently derived from an unsubstituted or substituted aliphatic, alicyclic, alkenyl, aryl, heteroaryl, siloxane, poly (butadiene-co-acrylonitrile) and poly (alkylene oxide).
- X 13 and X 14 are each independently H or an alkyl group having 1 to 6 carbon atoms, and Y is a substituted or unsubstituted aliphatic or aromatic group.
- X 15 and X 16 are each independently H or a carbon number of 1-6.
- R 1 , R 2 , R 5 , Q 1 , Q 2 , Q 3, Q 4 and Q 5 are each independently substituted or unsubstituted linear, branched, or A cyclic aliphatic moiety having 2 to about 100 carbon atoms.
- R and Q are each independently substituted or unsubstituted aromatic or heteroaromatic moieties having from 6 to about 14 carbon atoms.
- R and Q are each independently a substituted or unsubstituted siloxane moiety having from 2 to about 50 silicon atoms.
- R and Q are each independently a polysiloxane moiety such as, for example, dimethylsiloxane, methylphenylsiloxane, diphenylsiloxane, or combinations thereof.
- the siloxane moiety is preferably dimethylsiloxane, methylphenylsiloxane, diphenylsiloxane, or a combination thereof.
- Structures derived from substituted aliphatic, alicyclic, alkenyl, aryl, heteroaryl, siloxane, poly (butadiene-co-acrylonitrile) and poly (alkylene oxide) include alkyl groups, alkenyl groups, alkynyl groups, hydroxyl groups , Oxo group, alkoxy group, mercapto group, cycloalkyl group, substituted cycloalkyl group, heterocyclic group, substituted heterocyclic group, aryl group, substituted aryl group, heteroaryl group, substituted heteroaryl group, aryloxy group, substituted aryl Oxy group, halogen, haloalkyl group, cyano group, nitro group, nitrone group, amino group, amide group, -C (O) H, acyl group, oxyacyl group, carboxyl group, carbamate group, sulfonyl group, sulfonamide group, sulfuryl Group, or —
- Such maleimide resins are used, for example, to contact dianhydride and diamine under conditions suitable to form an imide having a terminal amino moiety, to form a maleimide with maleic anhydride at the terminal amino moiety. It can be carried out by contacting under appropriate conditions to produce an imide-extended maleimide resin.
- R 1 , R 2 , R 5 , Q 1 , Q 2 , Q 3, Q 4 and Q 5 are substituted substituted aliphatic, alicyclic, alkenyl, aryl, heteroaryl, siloxane, poly (butadiene
- substituents include alkyl groups, alkenyl groups, alkynyl groups, hydroxyl groups, oxo groups, alkoxy groups, mercapto groups, cycloalkyl groups , Substituted cycloalkyl group, heterocyclic group, substituted heterocyclic group, aryl group, substituted aryl group, heteroaryl group, substituted heteroaryl group, aryloxy group, substituted aryloxy group, halogen, haloalkyl group, cyano group, nitro group , Nitrone group, amino group, amide group, -C (O) H,
- any one of R 1 , R 2 , R 5 , Q 1 , Q 2 , Q 3 , Q 4 , and Q 5 preferably has a cyclic structure.
- the cyclic structure it is more preferable to have a structure represented by the following general formula (7).
- Y is a substituted or unsubstituted linear, branched or cyclic aliphatic moiety having 2 to about 100 carbon atoms.
- R 1 is a substituted or unsubstituted aromatic or heteroaromatic moiety having from 6 to about 14 carbon atoms.
- maleimide represented by the general formula (2) include, but are not limited to, those represented by the following general formula (13).
- maleimide represented by the general formula (3) include, but are not limited to, those represented by the following general formula (14) (n is 0 to 20).
- polyimide represented by the general formula (4) for example, a substituted or unsubstituted aliphatic or aromatic group is added to the double bond of the maleimide structure at one end of the compounds of the general formulas (1) to (3). Structure.
- polyimide represented by the general formula (4) include those represented by the following general formula (15).
- Precursor polymers or oligomers with succinic anhydride functionality in the pendant (top) or main chain (bottom) are known in the art. Examples of such materials include polyolefins grafted with succinic anhydride residues (eg, polyethylene, polypropylene and the like), polybutadiene grafted with succinic anhydride residues, maleic anhydride and styrene or alpha -Alternating or random copolymers with olefins and the like.
- RN is an aromatic, heteroaromatic, aliphatic, or polymer moiety.
- X N are each independently H or an alkyl group having 1 to 6 carbon atoms.
- polyimide represented by the general formula (5) examples include those represented by the following general formula (16).
- X N is each independently H or an alkyl group having 1 to 6 carbon atoms, m is 1 to 10, and n is 3 to 20.
- maleimide other than those described above include, for example, those shown in the following general formula (17), but are not limited thereto.
- the maleimide resin may be used independently in the film, or may be combined with other adhesive compounds and resins.
- maleimide resin may be used as the only thermosetting resin in the adhesive composition.
- one or more maleimide resins can be used in combination, and maleimide resins and other thermosetting resins can be used together.
- the film when the maleimide resin has a mass average molecular weight of 1,000 or more, the film is easily formed, preferably 2,000 or more, and more preferably 3,000 or more. Moreover, it is excellent in sclerosis
- hardenability as a mass mean molecular weight is 30,000 or less, 10,000 or less are more preferable, and 5,000 or less are still more preferable.
- the mass average molecular weight can be measured by gel permeation chromatography (GPC) (in terms of standard polystyrene).
- the maleimide resin is present in an amount from 2 to 98% by weight, based on the total weight of the resin components in the film. Moreover, when the maleimide resin is contained in an amount of 50% by mass or more of the resin component constituting the film, it is preferable in terms of excellent reactivity and resistance to thermal deterioration.
- the at least one cure initiator is typically present in the composition in an amount of from 0.1% to 5% by weight, typically based on the total weight of the resin components in the film, and is typically free radical initiated It is an agent.
- a radical initiator is a species that acts as a reactant in the initiation stage of a radical chain reaction but does not participate in any process of propagation. As used herein, any that, when exposed to sufficient energy (eg, light, heat, or the like), decomposes into two parts that are not charged but each have at least one unpaired electron The chemical species.
- the radical initiator include azo compounds, peroxides, and hydrocarbon radical initiators.
- Hydrocarbon radical initiators are disclosed, for example, in JP-A-2009-203384, and are preferable in terms of excellent electrical characteristics of the resulting effect resin composition.
- Preferred radical initiators contemplated for use in practicing the present invention have a one hour half-life temperature of 140 ° C or higher. More preferably, it is 170 degreeC or more, More preferably, it is 200 degreeC or more.
- the upper limit of the one-hour half-life temperature of the radical polymerization initiator is not particularly limited, but is preferably 250 ° C. or lower.
- a radical initiator having a one-hour half-life temperature of 140 ° C. or higher is preferred because of excellent film storage stability.
- Typical radical initiators contemplated for use in the practice of the present invention include 3,4-di-tert-butyl-2,2,5,5-tetramethylhexane, di-tert-amyl. Peroxide, di-t-butyl peroxide, 3,6,9-triethyl-3,6,9-trimethyl-1,4,7-triperoxonane, di-t-butyl peroxide, 2,5-dimethyl -2,5-di (t-butylperoxy) hexyne-3, p-menthane hydroperoxide, isopropylcumyl hydroperoxide, 1,1,3,3-tetramethylbutyl hydroperoxide, 2,4, 5,7-tetramethyl-4,5-diphenyloctane, diisopropylbenzene hydroperoxide, 1,1,3,3-tetramethylbutyl hydroper Oxide, tert-amyl hydroperoxide, cumene hydroperoxide, 4,5-d
- the radical initiator further includes a photoinitiator.
- a photoinitiator for an adhesive composition of the present invention that includes a photoinitiator, the curing process can be initiated by UV radiation.
- the photoinitiator is present at a concentration of 0.1% to 5% by weight, based on the total weight of resin components in the film. In one embodiment, the photoinitiator is present at a concentration of 0.1% to 3% by weight, based on the total weight of resin components in the film.
- Photoinitiators include benzoin derivatives, benzyl ketals, alpha, alpha-dialkoxyacetophenones, alpha-hydroxyacetophenones, alpha-aminoalkylphenones, acylphosphine oxides, titanocene compounds, benzophenones and amines or Michler's ketones. Combinations and the like are included.
- a polymer component may be included in order to facilitate the formation of a film.
- the polymer component can also contribute to impart stress relaxation properties.
- the polymer component may be any one that is easy to handle and compatible with the maleimide resin.
- suitable polymer components include thermoplastic resins that are hydrophobic and soluble in toluene. When having compatibility with the maleimide resin, it is conceivable that both the thermoplastic resin and the maleimide resin are soluble in the same solvent, and examples of such a solvent include aromatic solvents. Examples of useful solvents include toluene and xylene.
- the styrene and butadiene block copolymers useful in the present invention may be diblock copolymers having styrene polymer segments and butadiene polymer segments covalently bonded together.
- the block copolymer of styrene and butadiene useful in the present invention may be a triblock copolymer, having two segments of styrene polymer and one segment of butadiene polymer, each segment of styrene polymer being shared with segments of butadiene polymer Are connected. Additional styrene and butadiene block copolymers useful in the present invention may be styrene and butadiene block copolymers in which the butadiene segment is hydrogenated. Further, it may be a triblock copolymer having a styrene polymer segment, a butadiene polymer segment, and a methacrylate ester polymer segment.
- polyimide precursors such as polyamic acid, polyamic acid ester, polyamic acid amide, polyTHF, carboxy-terminated butadiene acrylonitrile rubber, and polypropylene glycol are also preferable.
- high molecular components such as phenoxy, acrylic rubber, polyimide, polyamide, polyacrylate, polyether, polysulfone, polyethylene, polypropylene, polysiloxane, polyvinyl acetate / polyvinyl ester, polyolefin, polycyanoacrylate, etc., compatible with maleimide resin If it has property, it can be used suitably.
- thermoplastic resins containing polymer segments with reactive double bonds can react with the maleimide resin during a radical activated curing process.
- the mass average molecular weight of the polymer component is 10,000 or more, the film is easily formed. Moreover, it is excellent in the fluidity
- the mass average molecular weight can be measured by gel permeation chromatography (GPC) (in terms of standard polystyrene).
- GPC gel permeation chromatography
- the blending ratio of the polymer component is excellent in ease of film formation when it is 5% by mass or more based on the total mass of the resin component in the film. Moreover, it is excellent in the fluidity
- a curable component other than the maleimide resin may be contained. Although it does not specifically limit as a sclerosing
- numerator is used preferably.
- a (meth) acrylate compound having an amide bond in the molecule a bisphenol A (meth) acrylate, a compound obtained by reacting a polyhydric alcohol with an ⁇ , ⁇ -unsaturated carboxylic acid, a glycidyl group-containing compound with ⁇
- examples include compounds obtained by reacting ⁇ -unsaturated carboxylic acids, urethane monomers such as (meth) acrylate compounds having a urethane bond in the molecule, or urethane oligomers.
- nonylphenoxy polyoxyethylene acrylate Phthalic acid compounds such as ⁇ -chloro- ⁇ -hydroxypropyl- ⁇ '-(meth) acryloyloxyethyl-o-phthalate, ⁇ -hydroxyalkyl- ⁇ '-(meth) acryloyloxyalkyl-o-phthalate, ) Acrylic acid alkyl ester, EO-modified nonylphenyl Meth) acrylate or the like can be exemplified.
- a compound having an isocyanurate ring can be used.
- a compound having a tetrahydrofuran structure can be used. These may be used alone or in combination of two or more.
- the blending ratio of the curable component other than the maleimide resin is 2% by mass or more based on the total mass of the resin component in the film. It is excellent in terms of improving curability and is more preferably 5% by mass or more. Moreover, 50 mass% or less is preferable from a heat resistant viewpoint of a film, 30 mass% or less is more preferable, and 10 mass% or less is still more preferable.
- a coupling agent may be contained.
- the coupling agent facilitates the bonding between the maleimide film and the adherend.
- the coupling agent those compatible with the other components of the present invention can be used.
- Silicate esters metal acrylate salts (eg, aluminum (meth) acrylate), titanates (eg, titanium (meth) acryloxyethyl acetoacetate triisopropoxide), or compounds containing a copolymerizable group and a chelating ligand (eg, Phosphine, mercaptan, acetoacetate and the like).
- the coupling agent has both copolymerizable functional groups (eg, vinyl groups, acrylate groups, methacrylate groups, and the like) and silicate ester functional groups.
- the silicate ester portion of the coupling agent can condense with the metal hydroxide present on the surface when the adherend and the filler described below are metals.
- the copolymerizable functional group can be copolymerized with other reactive components of the maleimide film of the present invention.
- a coupling agent contemplated for use in the practice of the present invention is an oligomeric silicate coupling agent such as poly (methoxyvinylsiloxane).
- the coupling agent can be added in the range of 0.1% by mass to 5% by mass based on the total mass of the resin components in the film.
- a filler may be contained. By adding a filler, a function corresponding to the filler can be imparted to the maleimide film. On the other hand, when a filler is not added, the film has excellent fluidity.
- the filler generally known fillers can be used as appropriate, and there are an organic filler, an inorganic filler, and a metal filler.
- the organic filler is preferable in that it can impart toughness to the film, and examples thereof include fillers such as acrylic, polyimide, polyamideimide, polyetheretherketone, polyetherimide, polyesterimide, nylon, and silicone.
- Inorganic fillers or metal fillers can improve handling properties, improve thermal conductivity, impart conductivity, adjust melt viscosity, impart thixotropic properties, and the like.
- a metal filler For example, gold
- the inorganic filler is not particularly limited.
- aluminum hydroxide, magnesium hydroxide, calcium carbonate, magnesium carbonate, calcium silicate, magnesium silicate, calcium oxide, magnesium oxide, alumina, aluminum nitride, aluminum borate whisker, nitriding Boron, crystalline silica, amorphous silica and the like can be mentioned, and the shape of the filler is not particularly limited.
- These fillers can be used alone or in combination of two or more.
- silica is more preferable from the viewpoint of versatility.
- the silica is preferably spherical silica in that the maleimide film can be thinned and can contain a high proportion of filler.
- the specific surface area of the silica filler is preferably 70 ⁇ 150m 2 / g, more preferably 100 ⁇ 130m 2 / g.
- the specific surface area of the silica filler is 70 to 150 m 2 / g, there is an advantage that the heat resistance can be improved with a small amount.
- the specific surface area of the silica filler is preferably 3 to 12 m 2 / g, and more preferably 5 to 10 m 2 / g.
- the specific surface area of the silica filler is 3 to 12 m 2 / g, there is an advantage that the maleimide film can contain the filler in a high ratio and heat resistance can be improved.
- the average particle size of the silica filler is preferably from 0.01 to 0.05 ⁇ m, more preferably from 0.012 to 0.03 ⁇ m, because the heat resistance can be improved with a small amount. It is particularly preferably from 014 to 0.02 ⁇ m. In another embodiment, the average particle size of the silica filler is preferably 0.2 to 1 ⁇ m, more preferably 0.3 to 0.8 ⁇ m, because it can contain a high proportion of filler. It is particularly preferably 4 to 0.6 ⁇ m. When a plurality of types of silica fillers are contained, the average particle size of at least one type of silica filler is preferably 0.01 to 0.05 ⁇ m. Of the remaining types of silica fillers, the average particle size of at least one silica filler is preferably 0.2 to 1 ⁇ m.
- the content of the silica filler is preferably 5 to 70% by mass based on the total mass of the film from the viewpoint that both the heat resistance of the maleimide film can be improved and the fluidity can be maintained. Further, in terms of the relationship with the average particle size, the silica filler having an average particle size of 0.01 to 0.05 ⁇ m has an average particle size of 0.2 to 15% based on the total mass of the film.
- the silica filler of ⁇ 1 ⁇ m is preferably 10 to 70% by mass, more preferably 20 to 60% by mass, respectively, from the viewpoint that both improvement of heat resistance and fluidity of the maleimide film can be achieved.
- a filler having a thermal conductivity of 20 W / m ⁇ K or more when applied, it is preferable in terms of improving thermal conductivity, more preferably 30 W / m ⁇ K or more, and high thermal conductivity with a small filling amount. From the viewpoint that the rate can be secured, it is particularly preferably 100 W / m ⁇ K or more.
- the thermal conductivity of the filler is measured by measuring the thermal diffusivity by a laser flash method (for example, measurement conditions: laser pulse width 0.4 ms, laser wavelength 1.06 ⁇ m, measuring device: TC7000 manufactured by ULVAC, Inc.) The value calculated by the product of the value, the density of the filler species, and the specific heat.
- fillers examples include gold (320 W / m ⁇ K), silver (420 W / m ⁇ K), copper (398 W / m ⁇ K), aluminum (236 W / m ⁇ K), iron (84 W / m). K), indium (84 W / m ⁇ K), tin (64 W / m ⁇ K), alumina (Al 2 O 3, 30 W / m ⁇ K), aluminum nitride (AlN, 260 W / m ⁇ K), boron nitride (BN, 275 W / m ⁇ K (in-plane direction)), silicon nitride (Si 3 N 4, 23 W / m ⁇ K), and the like, but are not limited thereto.
- a metal filler or aluminum nitride is preferable, and from the viewpoint of exhibiting excellent thermal conductivity and electrical insulation, aluminum nitride or alumina is preferable.
- One kind may be used alone, or two or more kinds may be used in combination.
- a filler having a relatively small average particle diameter for example, about 0.1 to 2 ⁇ m, preferably about 0.2 to 1.8 ⁇ m, and a filler having a relatively large average particle diameter, for example, about 2 to 10 ⁇ m, preferably 2.5 to
- the heat conduction path between fillers with a large average particle diameter is connected by a filler with a small average particle diameter, so that a high filling can be achieved as compared with the case of using only one with the same average particle diameter. In some cases, higher thermal conductivity can be obtained.
- the filler having a small average particle diameter and the filler having a large average particle diameter are preferably used in a mass ratio of 1: 0.1 to 1.0 in terms of forming a heat conduction path.
- the particle size is too large, the surface shape of the cured product is deteriorated, and if it is too small, it tends to aggregate and the dispersibility is deteriorated. It is preferable to use those.
- an agglomerated filler it is preferable to use one having an average crystal diameter of 10 to 5000 nm and an average aggregate diameter of 1 to 1000 ⁇ m.
- the content of the filler having a thermal conductivity of 20 W / m ⁇ K or more is preferably 30% by volume or more of the film from the viewpoint of improving thermal conductivity, and more preferably 40% by volume or more. Moreover, it is excellent in film forming property that content of the filler whose heat conductivity is 20 W / m * K or more is 70 volume% or less, and it is more preferable that it is 60 volume% or less.
- fillers include carbon particles, silver, copper, nickel, aluminum, gold, tin, zinc, platinum, palladium, iron, tungsten, molybdenum, and other metal particles, alloys thereof, solder particles, metals, or alloys.
- Particles prepared by surface coating or coating with a conductive coating agent such as, but not limited to. As particles whose surface is coated with a conductive coating agent, conductive particles different from the coating agent may be applied, or non-conductive particles may be used.
- Non-conductive particles include, for example, particles made of polyethylene, polystyrene, phenol resin, epoxy resin, acrylic resin or benzoguanamine resin, or glass beads, silica, or ceramic. One kind may be used alone, or two or more kinds may be used in combination.
- the melting point is 200 ° C. or lower in that the filler is melted and fused in the curing process of the maleimide film, and the conductivity becomes high.
- Sn42-Bi58 solder (melting point 138 ° C.), Sn48-In52 solder (melting point 117 ° C.), Sn42-Bi57-Ag1 solder (melting point 139 ° C.), Sn90-Ag2-Cu0.5-Bi7.5 solder ( Melting point 189 ° C.), Sn89-Zn8-Bi3 solder (melting point 190 ° C.), Sn91-Zn9 solder (melting point 197 ° C.) and the like, and alloys having a melting point of 180 ° C.
- An alloy containing Sn is preferable in that the melting point is easily adjusted to 200 ° C. or less, and an alloy of Sn and Bi is more preferable.
- the filler having conductivity as described above is preferably a filler capable of forming a sintered body in that the conductivity is further improved and the adhesiveness of the maleimide film can be improved by making a strong connection.
- Sintering is a phenomenon in which particles in contact are held at a temperature below the melting point, and the coalescence of the particles proceeds in a direction that reduces the surface energy of the entire particle system, thereby densifying the particle system.
- sintering is facilitated by the filler containing metal nanofillers or consisting only of metal nanofillers.
- the smaller the particle size of the filler the greater the total surface area per unit mass and the greater the contribution of surface energy, so the thermal energy required for melting is reduced and sintering at low temperatures is possible.
- the filler can be prepared by a method described in JP-A-2005-146408 or JP-A-2012-082516.
- Liquid phase sintering is a special form of sintering in which solid powder particles coexist with the liquid phase.
- the metals diffuse into each other, creating new alloys and / or intermetallic species. By forming, the mixture is densified and homogenized.
- transitional liquid phase sintering the time present in the liquid phase as a result of metal homogenization is very short. That is, the liquid phase has a very high solubility in the surrounding solid phase and thus diffuses rapidly into the solid and eventually solidifies. Diffusion homogenization produces the final composition without the need to heat above the equilibrium melting temperature of the mixture of metal particles.
- combinations with excellent conductivity include copper-indium alloys, copper-tin alloys, silver-indium alloys, silver-tin alloys, gold-indium alloys, gold-tin alloys, gold-lead alloys.
- examples include, but are not limited to, alloys. All of the systems containing In have an eutectic point near 150 ° C., which is excellent in that low-temperature sintering easily proceeds. Moreover, since the system containing Sn has a eutectic point around 200 ° C., it is preferable in terms of heat resistance reliability.
- the filler having conductivity as described above may be spherical, non-spherical, dendritic, flake, plate-like, porous, or the like.
- the average particle diameter is preferably 30 ⁇ m or less in terms of facilitating thinning of the maleimide film, and more preferably 10 ⁇ m or less.
- the thickness is 5 ⁇ m or less, the surface area is increased, so that the particles are easily wetted with each other.
- the thickness is 1 ⁇ m or less, the total surface area per unit mass rapidly increases and the contribution of surface energy increases, so it is necessary for melting. It is particularly excellent in that it can reduce the thermal energy and sinter at a low temperature.
- the average particle size of the filler is generally 0.005 ⁇ m or more, and 0.1 ⁇ m or more is preferable in that it hardly aggregates and is excellent in dispersibility with a solvent or a resin. Moreover, in order to increase the contact point between fillers, it is preferable that it is 75 mass% or more based on the total mass of a film, It is more preferable that it is 85 mass% or more, 90 mass% or more is further more preferable. In order to exhibit the dispersion effect by a solvent or resin and the auxiliary effect of adhesion, 99 mass% or less is preferable, and 98 mass% or less is more preferable.
- the maleimide film preferably contains a flux.
- the flux serves to remove the surface oxide film of the conductive filler.
- known compounds can be used without particular limitation as long as they are compounds that do not inhibit the curing reaction of maleimide resin or other curable resins. Examples thereof include carboxylic acids, inorganic acids, alkanolamines, phenols, rosin, chloride compounds and salts thereof, halogenated compounds and salts thereof.
- the flux may comprise a carboxylic acid and tertiary amine salt or mixture and have a potential.
- the flux may be deactivated at the end of the heat treatment of the maleimide film, in which case the flux functional groups and the curable resin are reacted and incorporated to reactivate.
- carboxylic acid examples include acrylic acid, methacrylic acid, maleic acid, fumaric acid, valeric acid, hexanoic acid, heptanoic acid, 2-ethylhexanoic acid, octanoic acid, 2-methylheptanoic acid, and 4-methyloctanoic acid.
- the carboxylic acid has a molecular weight of 150-300.
- the molecular weight of the carboxylic acid is a dicarboxylic acid.
- dicarboxylic acids include oxalic acid, malonic acid, succinic acid, glutaric acid, fumaric acid, maleic acid and the like.
- Tertiary amines are used in the form of a mixture or salt with acid functional groups and form a buffer or salt with the acidic functional groups of the carboxylic acid to prevent premature reaction with other resin components.
- a tertiary amine may be a monomer, oligomer or polymer and a combination of one or more molecules.
- Triethanolamine and tertiary alkanolamines such as N, N, N include N, N, N′N ′ tetrakis (2-hydroxyethyl) ethylenediamine, and buffer mixtures or salts with carboxylic acid functional groups. Suitable for forming.
- Flux can be introduced into maleimide films in a wide variety of forms.
- a state compatible with a resin, a state mixed as particles, a state coated with a conductive filler, and the like can be mentioned.
- the average particle size of the particulate flux is 30 ⁇ m or less, preferably 15 ⁇ m or less. When the average particle size is 15 ⁇ m or less, the metal is more easily melted. It is presumed that the average particle size becomes smaller, the apparent melting point of the flux is lowered and the flux is easily melted, and the oxide film can be easily removed.
- the average particle size is preferably 10 ⁇ m or less, more preferably 6 ⁇ m or less from the viewpoint of enabling a thin coating of a maleimide film, and 2 ⁇ m or less from the viewpoint of improving the printability of the conductive adhesive composition. Further preferred. Further, from the viewpoints of handleability, thin film application, and printability, the average particle size is preferably 0.01 ⁇ m or more.
- the thin film indicates a thickness of 20 ⁇ m or less, and that the applicability is good means that when the conductive adhesive composition is applied, for example, when a line is drawn using a dispenser, the line width is It means that the surface roughness is uniform within 10% of the film thickness when formed into a film with a coater.
- printability means that when applying a conductive adhesive composition to an object, for example, when continuously printed by screen printing, the paste viscosity on the object does not increase with time and is stable.
- average particle diameter means a D50 value of a cumulative volume distribution curve in which 50% by volume of particles measured by a laser diffraction method have a diameter smaller than this value.
- the laser diffraction method is preferably performed using a Malvern Mastersizer 2000 manufactured by Malvern Instruments. In this technique, the size of particles in a suspension or emulsion is measured using laser beam diffraction, based on either Fraunhofer or Mie theory applications. In the present invention, Mie theory or modified Mie theory for non-spherical particles is used, and the average particle diameter or D50 value relates to scattering measurement at 0.02 to 135 ° with respect to the incident laser beam.
- a diameter is obtained by taking an electron micrograph using a scanning electron microscope (SEM), measuring the cross-sectional area of the particle, and setting the measured value as the area of a corresponding circle. was determined as the particle size.
- SEM scanning electron microscope
- a method of pulverizing can be mentioned.
- a method for pulverization a pulverizer can be used.
- the pulverizer include known ball mill pulverizers, jet mill pulverizers, ultrafine pulverizers, hammer type pulverizers, mortars, roller mills and the like.
- the method of adjusting an average particle diameter is not restrict
- the conductive adhesive composition of the present invention comprises, for example, a plasticizer, oil, stabilizer, antioxidant, corrosion inhibitor, inhibitor, chelating agent, pigment, dye, polymer additive,
- a plasticizer oil, stabilizer, antioxidant, corrosion inhibitor, inhibitor, chelating agent, pigment, dye, polymer additive,
- One or more additives such as foaming agents, preservatives, thickeners, rheology modifiers, humectants, tackifiers, dispersants and water may be further included.
- the maleimide film can be produced by a usual method. For example, a varnish containing a maleimide resin is prepared, a varnish is applied on a cover film to a predetermined thickness to form a coating film, and then the coating film is dried under predetermined conditions to produce a maleimide film. it can. It does not specifically limit as a coating method, For example, roll coating, screen coating, gravure coating, etc. are mentioned. As drying conditions, for example, a drying temperature of 80 to 130 ° C. and a drying time of 1 to 5 minutes are performed.
- polyethylene terephthalate (PET), polyethylene, polypropylene, a plastic film or paper whose surface is coated with a release agent such as a fluorine-type release agent or a long-chain alkyl acrylate release agent can be used.
- PET polyethylene terephthalate
- a release agent such as a fluorine-type release agent or a long-chain alkyl acrylate release agent
- the thickness between adherends can be maintained, which is preferable in terms of easy handling.
- the thickness of the maleimide film is not particularly limited, but is preferably 1 to 300 ⁇ m, preferably 5 to 60 ⁇ m when bonding the adherends to each other, and 60 to 200 ⁇ m when stress relaxation is required. preferable.
- the maleimide film can be suitably used as an adhesive film with a dicing tape by being combined in the form of being laminated on the dicing tape.
- the dicing tape is a tape used for a process of cutting an individual circuit or package of an integrated circuit or a package mainly formed on a semiconductor wafer by cutting the wafer with a dicing saw.
- ⁇ Dicing tape> 1 and 2 are schematic cross-sectional views of an adhesive film with a dicing tape according to an embodiment of the present invention.
- FIG. 1 shows the structure of an adhesive film 10 with a dicing tape in which an adhesive film 3 is laminated on a dicing tape 11.
- the dicing tape 11 is configured by laminating the pressure-sensitive adhesive layer 2 on the base material 1, and the adhesive film 3 is provided on the pressure-sensitive adhesive layer 2.
- work affixing part may be sufficient.
- the base material 1 is a base material for the strength of the adhesive films 10 and 12 with dicing tape, and preferably has ultraviolet transparency and expands when expanded.
- polyolefins such as polyethylene, polyprolene, polybutene, polymethylpentene, ethylene-vinyl acetate copolymer, ionomer resin, ethylene- (meth) acrylic acid copolymer, ethylene- (meth) acrylic acid ester (random, alternating) Copolymer, ethylene-butene copolymer, ethylene-hexene copolymer, polyester such as polyurethane, polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, polyetheretherketone, polyetherimide, polyamide, wholly aromatic polyamide, Polyphenylsulfide, aramid (paper), glass, glass cloth, fluororesin, polyvinyl chloride, polyvinylidene chloride, cellulosic resin, silicone resin, cross-linked products of
- the surface of the substrate 1 is subjected to conventional surface treatments such as chromic acid treatment, ozone exposure, flame exposure, high-voltage impact exposure, ionizing radiation treatment, etc. in order to improve adhesion, retention, etc.
- a coating treatment with a primer for example, an adhesive substance described later can be performed.
- the base material 1 can be used by appropriately selecting the same type or different types, and a blend of several types can be used as necessary. In addition, a laminate of different layers can be used.
- the thickness of the substrate 1 is not particularly limited, but is generally about 50 to 200 ⁇ m.
- the pressure-sensitive adhesive used for forming the pressure-sensitive adhesive layer 2 is not particularly limited, and for example, a general pressure-sensitive adhesive such as an acrylic pressure-sensitive adhesive or a rubber-based pressure-sensitive adhesive can be used.
- a radiation curable pressure-sensitive adhesive can be used as the pressure-sensitive adhesive used for forming the pressure-sensitive adhesive layer 2.
- a radiation-curable pressure-sensitive adhesive can easily reduce its adhesive strength by increasing the degree of crosslinking by irradiation with radiation such as ultraviolet rays.
- the radiation curable pressure-sensitive adhesive those having a radiation curable functional group such as a carbon-carbon double bond and exhibiting adhesiveness can be used without particular limitation.
- an addition type radiation curable pressure sensitive adhesive in which a radiation curable monomer component or oligomer component is blended with a general pressure sensitive pressure sensitive adhesive such as the acrylic pressure sensitive adhesive or rubber pressure sensitive adhesive can be exemplified.
- Examples of the radiation curable monomer component to be blended include urethane oligomer, urethane (meth) acrylate, trimethylolpropane tri (meth) acrylate, tetramethylolmethane tetra (meth) acrylate, pentaerythritol tri (meth) acrylate, and pentaerythritol.
- Examples include stall tetra (meth) acrylate, dipentaerystol monohydroxypenta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, and 1,4-butanediol di (meth) acrylate.
- the radiation curable oligomer component includes various oligomers such as urethane, polyether, polyester, polycarbonate, and polybutadiene, and those having a molecular weight in the range of about 100 to 30000 are suitable.
- the amount of the radiation curable monomer component or oligomer component can be appropriately determined according to the type of the pressure-sensitive adhesive layer. Generally, the amount is, for example, about 5 to 500 parts by mass, preferably about 40 to 150 parts by mass with respect to 100 parts by mass of the base polymer such as an acrylic polymer constituting the pressure-sensitive adhesive.
- the radiation curable pressure-sensitive adhesive in addition to the additive-type radiation curable pressure-sensitive adhesive described above, a base polymer having a carbon-carbon double bond in the polymer side chain or main chain or at the main chain terminal is used.
- the used radiation curable pressure-sensitive adhesive is used.
- Intrinsic radiation curable pressure-sensitive adhesive does not need to contain an oligomer component, which is a low-molecular component, or does not contain much, so that the oligomer component or the like does not move in the pressure-sensitive adhesive over time and is stable. Since the adhesive layer of a layer structure can be formed, it is preferable.
- the radiation curable pressure-sensitive adhesive examples include photopolymerizable compounds such as an addition polymerizable compound having two or more unsaturated bonds and an alkoxysilane having an epoxy group disclosed in JP-A-60-196956. And a rubber-based pressure-sensitive adhesive and an acrylic pressure-sensitive adhesive containing a photopolymerization initiator such as a carbonyl compound, an organic sulfur compound, a peroxide, an amine, and an onium salt-based compound.
- photopolymerizable compounds such as an addition polymerizable compound having two or more unsaturated bonds and an alkoxysilane having an epoxy group disclosed in JP-A-60-196956.
- a rubber-based pressure-sensitive adhesive and an acrylic pressure-sensitive adhesive containing a photopolymerization initiator such as a carbonyl compound, an organic sulfur compound, a peroxide, an amine, and an onium salt-based compound.
- the thickness of the pressure-sensitive adhesive layer 2 is not particularly limited, but is preferably about 1 to 50 ⁇ m.
- the thickness is preferably 2 to 30 ⁇ m, more preferably 5 to 25 ⁇ m.
- FIG. 1 briefly illustrates the configuration and manufacturing method of a semiconductor device using such an adhesive film with a dicing tape.
- the semiconductor wafer 4 is pressure-bonded onto the semiconductor wafer attachment portion of the adhesive film 3 in the adhesive film with dicing film 10, and this is adhered and held and fixed (attachment step).
- This step is performed while pressing with a pressing means such as a pressure roll.
- the maleimide film of the present invention can bond semiconductor chips to each other, a semiconductor chip and a support member, and a support member and a functional member such as a heat dissipation member.
- Such an adherend is often coated with a metal or a polyimide film. Examples of the metal on the adherend surface include gold, silver, copper, and nickel. Further, among the above, a plurality of materials may be patterned on the substrate.
- a method for manufacturing a semiconductor device by connecting a semiconductor chip and a support member includes the following steps.
- (A) A process in which a maleimide film is applied to a semiconductor chip or a support member, and the semiconductor chip and the support member are bonded together (hereinafter referred to as “process (A)”),
- (B) A step of heating the maleimide film and bonding the semiconductor chip and the support member (hereinafter referred to as “step (B)”).
- (Process (A))-Maleimide film application process A maleimide film is applied by being bonded onto a support member or a semiconductor chip. At this time, a film of the same size may be bonded to a chip that has been divided, or a maleimide film may be bonded in the state of a semiconductor wafer and then separated into pieces. For the step of dividing the wafer into chips, it is preferable that the maleimide film in the form of the adhesive film with dicing tape is applied and the process is simple. It is also possible to divide the wafer into chips after separately bonding the maleimide film and the dicing tape to the semiconductor wafer.
- heat treatment is performed on the maleimide film. It may be performed only by heat treatment or may be performed by heat and pressure treatment.
- heat treatment hot plate, hot air dryer, hot air heating furnace, nitrogen dryer, infrared dryer, infrared heating furnace, far infrared heating furnace, microwave heating device, laser heating device, electromagnetic heating device, heater heating An apparatus, a steam heating furnace, or the like can be used.
- a hot plate press apparatus etc. may be used for a heat pressurization process, and the above-mentioned heat processing may be performed, putting a weight and pressurizing.
- the melting and joining of the filler in the maleimide film also proceeds by heat treatment.
- bonding of fillers if bonding with bonding or alloying progresses not only between fillers but also between the filler and the adherend or the metal on the adherend surface, it becomes difficult to break the interface, and the line in the device This is preferable in that the effect of preventing peeling and breakage due to the difference in expansion is improved.
- Semiconductor devices can be used for power modules, transmitters, amplifiers, LED modules, battery modules, etc. composed of diodes, rectifiers, thyristors, MOS gate drivers, power switches, power MOSFETs, IGBTs, Schottky diodes, fast recovery diodes, etc. it can.
- the obtained module has high adhesion between adherends, and can also have heat conductivity, conductivity, and heat resistance.
- a varnish containing each component shown in Table 1 and an appropriate amount of toluene was applied to a cover tape made of a PET film having a thickness of 50 ⁇ m, and passed through a drying furnace at 140 ° C. for 5 minutes. 3 adhesive films were formed.
- Polyimide resin 4,4′-oxydiphthalic dianhydride (manufactured by Manac, ODPA-M) in a 300 mL flask equipped with a polyimide resin thermometer, a stirrer, a cooling tube, and a nitrogen inflow tube manufactured by the following method 10.0 g (0.7 mol), 7.2 g (0.3 mol) decamethylene bis trimellitate dianhydride (manufactured by Kurokin Kasei Co., Ltd.), 7.4 g polyoxypropylene diamine (manufactured by Mitsui Chemicals Fine, D400) 0.48 mol), 1,3-bis (3-aminopropyl) -1,1,3,3-tetramethyldisiloxane (Toray Dow Corning Silicone, BY16-871EG) 6.7 g (0.58 mol), 4,9-dioxadecane-1,12-diamine (BSF B-12) 0.5 g (0.04 mol) and N-methyl
- the reaction solution was stirred and heated at 180 ° C. while blowing nitrogen gas to azeotropically remove 50% of N-methyl-2-pyrrolidone together with water to obtain a polyimide resin.
- Mw weight average molecular weight
- the obtained polyimide resin had a glass transition temperature (Tg) of 38 ° C.
- FG1901 KRATON (registered trademark) FG1901G, SEBS grafted with MA D1155: KRATON (registered trademark) D1155, SBS SO-C2: Silica filler, manufactured by Admatechs, average particle size 0.5 ⁇ m AlN: Aluminum nitride H grade, manufactured by Tokuyama, average particle size 1.1 ⁇ m, Mohs hardness 8, thermal conductivity 200 W / m ⁇ K Cu filler: spherical copper powder, average particle size 3 ⁇ m, stearic acid surface treatment Sn72-Bi28: spherical solder, melting point 139 ° C., average particle size 3 ⁇ m EA0297: Silver flakes, average particle size 4 ⁇ m, Metallic BHPA: Flux, 2,2-bis (hydroxymethyl) phuccinic acid (manufactured by Tokyo Chemical Industry Co., Ltd.) ), Average particle size 10 ⁇ m THFA: Tetrahydrofurfuryl acrylate, bis
- Examples 3 5, 6, 12, 14, and 15, since most of the resin components have a maleimide structure, thermal deterioration after curing can be suppressed, and even when subjected to a heat resistance test, the adhesive force is almost reduced. It never happened.
- the resin component since the resin component is composed of a resin having a maleimide structure and a polyimide resin, it is possible to suppress thermal deterioration after curing, and the adhesive strength does not decrease by 20% or more even when subjected to a heat resistance test. .
- Examples 4, 7 to 11 and 13 contain a resin having a maleimide structure, thermal degradation after curing can be suppressed, and even when subjected to a heat resistance test, the adhesive force did not decrease by 50% or more.
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Abstract
Description
また、前記マレイミド樹脂が、下記一般式(1)~(4)から選択される、または一般式(5)または(6)の繰り返し単位を有するマレイミド樹脂であることが好ましい。
本明細書の「熱硬化性」における「硬化」とは、化合物、組成物等が、非硬化物に比べてより大きな強度およびより少ない溶解性を有する単一の三次元ネットワークをもたらす不可逆的な反応をいい、熱硬化性とは、熱を介して化学反応(例えば、エポキシ開環、ラジカル重合)し、典型的に硬化することができる特性である。
X19、X20は、各々独立してHまたは炭素数1~6のアルキル基である。
熱硬化性の組成物に組み入れられた時、特に以下に列挙するようなイミド延長されたマレイミド樹脂は、熱安定性を犠牲にすることなく、脆性を低減し、組成物中の靭性を増加させる。
環状構造としては、下記一般式(7)に示される構造を有することがさらに好ましい。
RNは、芳香族、ヘテロ芳香族、脂肪族、またはポリマー部分である。
XNは、各々独立してHまたは炭素数1~6のアルキル基である。
少なくとも1つの硬化開始剤は、典型的には、フィルム中の樹脂成分の全質量に基づいて0.1質量%~5質量%までの量で組成物中に存在し、典型的にはラジカル開始剤である。ラジカル開始剤は、ラジカル連鎖反応の開始段階の反応物質として作用するが、伝播の任意の工程に参加していない種である。本明細書においては、十分なエネルギー(たとえば、光、熱、あるいはその他同種のもの)に暴露された時に、荷電していないが、各々少なくとも1つの不対電子を有する2つの部分へ分解する任意の化学種をいう。ラジカル開始剤としては、例えばアゾ化合物や過酸化物、炭化水素ラジカル開始剤が挙げられる。炭化水素ラジカル開始剤は例えば特開2009-203384に開示されており、得られる効果樹脂組成物の電気特性に優れる点で好ましい。本発明を実施する際に使用するために企図される好ましいラジカル開始剤は、1時間半減期温度が140℃以上である。より好ましくは170℃以上であり、さらに好ましくは200℃以上である。また、ラジカル重合開始剤の1時間半減期温度の上限は特に限定はないが、250℃以下が好ましい。ラジカル開始剤は、1時間半減期温度が140℃以上であると、フィルムの保存性に優れる点で好ましい。本発明を実施する際に使用するために企図された典型的なラジカル開始剤としては、3,4-ジ-t-ブチル-2,2,5,5-テトラメチルヘキサン、ジ-tert-アミルパーオキサイド、ジ-t-ブチルパーオキサイド、3,6,9‐トリエチル‐3,6,9‐トリメチル‐1,4,7‐トリペルオキソナン、ジ-t-ブチルパーオキサイド、2,5-ジメチル-2,5-ジ(t-ブチルパーオキシ)ヘキシン-3、p-メンタンハイドロパーオキサイド、イソプロピルクミルハイドロパーオキサイド、1,1,3,3-テトラメチルブチルハイドロパーオキサイド、2,4,5,7-テトラメチル-4,5-ジフェニルオクタン、ジイソプロピルベンゼンハイドロパーオキサイド、1,1,3,3-テトラメチルブチルハイドロパーオキサイド、tert-アミルハイドロパーオキサイド、クメンハイドロパーオキサイド、4,5-ジメチル-4,5-ジフェニルオクタン、t-ブチルハイドロパーオキサイド、3,4-ジメチル-3,4-ジフェニルヘキサン、2,3-ジメチル-2,3-ジフェニルブタンがあげられる。
本発明において、フィルム状に形成しやすくするために、高分子成分を包含してもよい。また、高分子成分は応力緩和性を付与するために寄与することもできる。高分子成分は、取り扱いが容易であり、マレイミド樹脂との適合性を有するものであればよい。好適な高分子成分の例としては、疎水性でありトルエンに可溶である熱可塑性樹脂が挙げられる。マレイミド樹脂との適合性を有する場合、熱可塑性樹脂とマレイミド樹脂の両方は同じ溶媒に可溶である場合が考えられ、このような溶媒としては芳香族溶媒が例えば挙げられる。有用な溶媒の例としてはトルエン及びキシレンが挙げられる。
本発明において、マレイミド樹脂以外の硬化性成分を含有してもよい。硬化性成分としては、特に限定されないが、分子内にエチレン性不飽和基を有するものが好ましく用いられる。例えば、分子内にアミド結合を有する(メタ)アクリレート化合物、ビスフェノールA系(メタ)アクリレート、多価アルコールにα,β-不飽和カルボン酸を反応させて得られる化合物、グリシジル基含有化合物にα,β-不飽和カルボン酸を反応させて得られる化合物、分子内にウレタン結合を有する(メタ)アクリレート化合物等のウレタンモノマー、またはウレタンオリゴマーが挙げられ、これら以外にも、ノニルフェノキシポリオキシエチレンアクリレート、γ-クロロ-β-ヒドロキシプロピル-β’-(メタ)アクリロイルオキシエチル-o-フタレート、β-ヒドロキシアルキル-β’-(メタ)アクリロイルオキシアルキル-o-フタレート等のフタル酸系化合物、(メタ)アクリル酸アルキルエステル、EO変性ノニルフェニル(メタ)アクリレート等が例示可能である。1つの実施態様では、イソシアヌレート環を有する化合物を用いることができる。別の実施態様では、テトラヒドロフラン構造を有する化合物を用いることができる。これらは単独で使用してもよく、2種類以上を組み合わせて使用してもよい。特定の実施形態では、マレイミド樹脂以外の硬化性成分の配合比率は、フィルム中の樹脂成分の全質量に基づいて2質量%以上であるとフィルムを被着体に貼合するときの流動性や硬化性を向上させられる点で優れ、5質量%以上であるとより好ましい。またフィルムの耐熱性の観点から50質量%以下が好ましく、30質量%以下がより好ましく、10質量%以下が更に好ましい。
導電性コーティング剤で表面を被覆される粒子としては、コーティング剤とは異なる導電性の粒子を適用してもよいし、非導電性粒子を用いてもよい。非導電性粒子には、例えばポリエチレン、ポリスチレン、フェノール樹脂、エポキシ樹脂、アクリル樹脂又はベンゾグアナミン樹脂、もしくはガラスビーズ、シリカ、セラミックからなる粒子などがある。1種を単独で用いても2種以上を組み合わせて用いてもよい。
また、フィラーの平均粒径は、0.005μm以上のものが一般的であり、0.1μm以上であると凝集しにくく溶媒や樹脂との分散性に優れる点で、好ましい。また、フィラー同士の接触点を増やすために、フィルムの全質量に基づいて75質量%以上であることが好ましく、85質量%以上であることがより好ましく、90質量%以上がさらに好ましい。溶媒や樹脂による分散効果や接着の補助効果を発揮させるためには99質量%以下が好ましく、98質量%以下がより好ましい。
フラックスとしては、マレイミド樹脂やその他の硬化性樹脂の硬化反応を阻害しない化合物であれば特に制限なく公知の化合物を使用することができる。たとえば、カルボン酸、無機酸、アルカノールアミン類、フェノール類、ロジン、塩化物化合物及びその塩、ハロゲン化化合物およびその塩などが挙げられる。特定の実施形態では、フラックスは、カルボン酸と第三級アミンの塩または混合物を含んで構成され、潜在性を有することができる。他の実施形態では、フラックスがマレイミドフィルムの熱処理の終了時に不活性にされていることでき、その場合フラックスの官能基と硬化性樹脂が反応して組み込まれることで、不活性化される。
マレイミドフィルムは、通常の方法で製造できる。例えば、マレイミド樹脂を含むワニスを作製し、ワニスをカバーフィルム上に所定厚みとなる様に塗布して塗布膜を形成した後、該塗布膜を所定条件下で乾燥させることで、マレイミドフィルムを製造できる。塗布方法としては特に限定されず、例えば、ロール塗工、スクリーン塗工、グラビア塗工等が挙げられる。また、乾燥条件としては、例えば乾燥温度80~130℃、乾燥時間1~5分間の範囲内で行われる。カバーフィルムとしては、ポリエチレンテレフタレート(PET)、ポリエチレン、ポリプロピレンや、フッ素系剥離剤、長鎖アルキルアクリレート系剥離剤等の剥離剤により表面コートされたプラスチックフィルムや紙などが使用可能である。このような方法を用いてフィルム化することで、被着体間の厚さを保持することができ、取り扱いの容易である点で好ましい。導電性接着剤組成物をフィルム状に形成するためには、分子量が1000以上のマレイミド樹脂を適用する、または、高分子成分を含有することが好ましい。
図1、図2は、本発明の一実施形態に係るダイシングテープ付き接着フィルムの断面模式図である。
次に、本発明に係るマレイミドフィルムの使用方法として、マレイミドフィルムを用いて半導体装置を製造する方法の一例を説明する。
本発明のマレイミドフィルムは半導体チップ同士、半導体チップと支持部材、支持部材と放熱部材のような機能部材などを接着することができる。このような被着体は表面が金属またはポリイミド膜で被覆されている場合が多い。被着体表面の金属としては、金、銀、銅、ニッケル等が挙げられる。また、上記のうち複数の材料が基材上にパターニングされていてもよい。
半導体チップと支持部材を接続して半導体装置の製造する方法は、以下の工程を有する。
(A)マレイミドフィルムを半導体チップあるいは支持部材に付与し、半導体チップと支持部材を貼り合わせる工程(以下、「工程(A)という。」)、
(B)マレイミドフィルムを加熱し、半導体チップと支持部材を接合する工程(以下、「工程(B)という。」)
マレイミドフィルムを支持部材または半導体チップ上に貼合して付与する。このとき、分断が完了したチップに対し同サイズのフィルムを貼合してもよいし、半導体ウェハの状態でマレイミドフィルムを貼合してから個片化してもよい。ウェハをチップに分断する工程には前記ダイシングテープ付き接着フィルムの形態のマレイミドフィルムを適用すると工程が簡易で好ましい。半導体ウェハにマレイミドフィルムとダイシングテープを別々に貼り合せた後にウェハをチップに分断することもできる。
次いで、マレイミドフィルムに対して加熱処理を行う。加熱処理のみで行ってもよいし、加熱加圧処理で行ってもよい。加熱処理には、ホットプレート、温風乾燥機、温風加熱炉、窒素乾燥機、赤外線乾燥機、赤外線加熱炉、遠赤外線加熱炉、マイクロ波加熱装置、レーザー加熱装置、電磁加熱装置、ヒーター加熱装置、蒸気加熱炉等を用いることができる。また、加熱加圧処理には、熱板プレス装置等を用いてもよいし、重りを乗せて加圧しながら前述の加熱処理を行ってもよい。
半導体装置は、ダイオード、整流器、サイリスタ、MOSゲートドライバ、パワースイッチ、パワーMOSFET、IGBT、ショットキーダイオード、ファーストリカバリダイオード等からなるパワーモジュール、発信機、増幅器、LEDモジュール、電池モジュール等に用いることができる。得られるモジュールは、被着体間に高接着性を有し、熱伝導性、導電性、耐熱性を有することもできる。
温度計、攪拌機、冷却管、及び窒素流入管を装着した300mLフラスコ中に、4,4’-オキシジフタル酸二無水物(マナック社製、ODPA-M)10.0g(0.7mol)、デカメチレンビストリメリテート二無水物(黒金化成社製)7.2g(0.3mol)、ポリオキシプロピレンジアミン(三井化学ファイン社製、D400)7.4g(0.48mol)、1,3-ビス(3-アミノプロピル)-1,1,3,3-テトラメチルジシロキサン(東レダウコーニングシリコーン社製、BY16-871EG)6.7g(0.58mol)、4,9-ジオキサデカン-1,12-ジアミン(BASF製 B-12)0.5g(0.04mol)及びN-メチル-2-ピロリドン30gを仕込んで反応液を調製した。反応液を攪拌し、窒素ガスを吹き込みながら180℃で加熱することにより、水と共に50%のN-メチル-2-ピロリドンを共沸除去し、ポリイミド樹脂を得た。得られたポリイミド樹脂のGPCを測定したところ、標準ポリスチレン換算の重量平均分子量(Mw)が53800であった。得られたポリイミド樹脂のガラス転移温度(Tg)は、38℃であった。
D1155:KRATON(登録商標)D1155、SBS
SO-C2:シリカフィラー、アドマテックス製、平均粒径0.5μm
AlN:窒化アルミニウムHグレード、トクヤマ製、平均粒径1.1μm、モース硬度8、熱伝導率200W/m・K
Cuフィラー:球状銅粉、平均粒径3μm、ステアリン酸表面処理
Sn72-Bi28:球状はんだ、融点139℃、平均粒径3μm
EA0297:銀フレーク、平均粒径4μm、Metalor製
BHPA:フラックス、2,2ービス(ヒド口キシメチル)フ口ピオン酸(東京化成工業製)のジェットミル粉砕機(日清エンジニアリング製、カレン卜ジェッ卜)による粉砕処理品、平均粒径10μm
THFA:テトラヒドロフルフリルアクリレート、ビスコート#150、THFA、大阪有機化学製
Z-6030:シランカップリング剤、3-メタクリロイルプロピルトリエトキシシラン、東レ・ダウコーニング製
TRIGONOX 301:3,6,9‐トリエチル‐3,6,9‐トリメチル‐1,4,7‐トリペルオキソナン、1時間半減温度146℃、Akzo Nobel製
Initiator A:3,4-ジ-t-ブチル-2,2,5,5-テトラメチルヘキサン、1時間半減温度141℃
Luperox TAH:tert-アミルハイドロパーオキサイド、1時間半減温度183℃、Arkema製
Initiator B:4,5-ジメチル-4,5-ジフェニルオクタン、1時間半減温度194℃
ノフマーBC:2,3-ジメチル-2,3-ジフェニルブタン、1時間半減温度234℃、日油製
Initiator C:3,4-ジメチル-3,4-ジフェニルヘキサン、1時間半減温度211℃
パークミルD:ジクミルパーオキサイド、1時間半減温度136℃、日油製
実施例1~15及び比較例1~3の接着フィルムを、厚さ50μm、直径200mmのシリコンウェハに対し、加熱温度90℃または110℃,貼合速度12mm/sで貼合した。上記貼合作業をシリコンウェハ10枚に対して試行し、接着フィルムがボイド等なく適切に貼合され、接着フィルムとして機能できるかを確認した。試験結果を表1に示す。
◎:10枚すべて90℃で貼合が可能であった。
○:10枚すべて90℃または110℃で貼合が可能であった。
×:少なくとも1枚以上の貼合不良が生じた。
実施例1~15及び比較例1の接着フィルムを、銀めっきしたPPF-Cuリードフレーム(ランド部:10×5mm)と、チタン、ニッケル及び金がこの順でめっきされ、5×5mm2の被着面が金めっきであるシリコンチップ(金めっきの厚み0.1μm、チップ厚:400μm)を貼り合せた。これを、230℃、0.5MPa、窒素雰囲気下で1.5時間加熱硬化した。硬化後のサンプルの半数を100℃で500時間保持して耐熱試験を行った。各サンプルのせん断接着力を測定し、耐熱試験前後の接着力の低下の有無を確認した。デイジ製「万能型ボンドテスターシリーズ4000」を用いて、テスト温度260℃、テスト高さ10μm、テストスピード50μm/sの条件で測定した。試験結果を表○○に示す。
◎(耐熱性良好):TCT前後の接着力の低下が10%未満
○(耐熱性良好):TCT前後の接着力の低下が20%未満
△(耐熱性良好):TCT前後の接着力の低下が50%未満
×(耐熱性不良):TCT前後の接着力の低下が50%以上
比較例2および3は重合開始剤の1時間の半減期温度が140℃未満であるので、フィルム化工程で硬化反応が進んでしまい、接着フィルムとして適用することができなかった。また、そのため、耐熱性の実験を行うことができなかった。
2 …… 粘着剤層
3、3’ …… 接着フィルム(熱硬化型接着フィルム)
4 …… 半導体ウェハ
10、12 …… ダイシング付き接着フィルム
11 …… ダイシングフィルム
Claims (14)
- マレイミド樹脂、及び1時間の半減期温度が140℃以上であるラジカル開始剤を含むことを特徴とするマレイミド接着フィルム。
- 前記R1、R2、R5、Q1、Q2、Q3、Q4、Q5のいずれか一つは、環状構造を有することを特徴とする、請求項2~7いずれか記載のマレイミド接着フィルム。
- 前記シロキサン部位がジメチルシロキサン、メチルフェニルシロキサン、ジフェニルシロキサンまたはそれらの組合せであることを特徴とする、請求項2~9いずれか記載のマレイミド接着フィルム。
- 置換された脂肪族、脂環族、アルケニル、アリール、ヘテロアリール、シロキサン、ポリ(ブタジエン-コ-アクリロニトリル)およびポリ(アルキレンオキシド)に由来する構造が、アルキル基、アルケニル基、アルキニル基、水酸基、オキソ基、アルコキシ基、メルカプト基、シクロアルキル基、置換シクロアルキル基、ヘテロ環基、置換ヘテロ環基、アリール基、置換アリール基、ヘテロアリール基、置換ヘテロアリール基、アリールオキシ基、置換アリールオキシ基、ハロゲン、ハロアルキル基、シアノ基、ニトロ基、ニトロン基、アミノ基、アミド基、-C(O)H、アシル基、オキシアシル基、カルボキシル基、カルバメート基、スルホニル基、スルホンアミド基、スルフリル基、または-C(O)-、-S-、-S(O)2-、-OC(O)-O-、-NA-C(O)-、-NAC(O)-NA-、-OC(O)-NA-、(式中AはHまたは炭素数1~6のアルキル基である)であって一端はさらに置換されている基から選択される置換基を有することを特徴とする、請求項2~10いずれか記載のマレイミド接着フィルム。
- 前記マレイミド樹脂が、樹脂成分の50質量%以上含有されていることを特徴とする、請求項1~11いずれか記載のマレイミド接着フィルム。
- さらにフィラーを含むことを特徴とする、請求項1~12いずれか記載のマレイミド接着フィルム。
- 請求項1~13いずれか記載のマレイミド接着フィルムを、ダイシングテープに積層してなることを特徴とする、ダイシングテープ付きマレイミド接着フィルム。
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| US15/428,508 Continuation US20170152418A1 (en) | 2014-08-29 | 2017-02-09 | Maleimide film |
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| EP (1) | EP3187555B1 (ja) |
| JP (1) | JP6429803B2 (ja) |
| KR (2) | KR101991165B1 (ja) |
| CN (1) | CN106661390B (ja) |
| MY (1) | MY179390A (ja) |
| PH (1) | PH12017500375B1 (ja) |
| SG (1) | SG11201700738XA (ja) |
| WO (1) | WO2016031555A1 (ja) |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05271535A (ja) * | 1992-03-25 | 1993-10-19 | Hitachi Chem Co Ltd | 熱硬化性樹脂組成物及び熱硬化性接着フィルム |
| JP2004083762A (ja) * | 2002-08-27 | 2004-03-18 | Matsushita Electric Works Ltd | 熱硬化性樹脂組成物、プリプレグ、金属張り積層板、プリント配線板、多層プリント配線板 |
| JP2004197010A (ja) * | 2002-12-20 | 2004-07-15 | Hitachi Ltd | 耐熱性接着剤及びその製造方法並びにそれを用いた半導体装置 |
| JP2006160910A (ja) * | 2004-12-08 | 2006-06-22 | Asahi Kasei Electronics Co Ltd | 半導体チップ用接着材組成物 |
| JP2006526014A (ja) * | 2003-05-05 | 2006-11-16 | アドバンスト アプライド アドヘッシブズ | イミド−リンクしたマレインイミドおよびポリマレインイミド化合物 |
| JP2010059387A (ja) * | 2008-08-04 | 2010-03-18 | Hitachi Chem Co Ltd | 接着剤組成物、フィルム状接着剤、接着シート及び半導体装置 |
| JP2011001473A (ja) * | 2009-06-19 | 2011-01-06 | Hitachi Chem Co Ltd | 電子部品用絶縁材料 |
| JP2013041911A (ja) * | 2011-08-12 | 2013-02-28 | Polyplastics Co | 太陽電池用接着シート及びその製造方法、並びに太陽電池モジュール |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5398083B2 (ja) | 2011-03-11 | 2014-01-29 | 日東電工株式会社 | ダイボンドフィルム及びその用途 |
| WO2012160916A1 (ja) * | 2011-05-20 | 2012-11-29 | 日立化成工業株式会社 | 接着剤組成物、フィルム状接着剤、接着シート及び半導体装置 |
| CN104039913B (zh) * | 2011-11-02 | 2017-08-22 | 汉高知识产权控股有限责任公司 | 用于电子部件的粘合剂 |
-
2015
- 2015-08-10 CN CN201580045116.XA patent/CN106661390B/zh active Active
- 2015-08-10 MY MYPI2017700627A patent/MY179390A/en unknown
- 2015-08-10 WO PCT/JP2015/072718 patent/WO2016031555A1/ja not_active Ceased
- 2015-08-10 JP JP2015557254A patent/JP6429803B2/ja active Active
- 2015-08-10 KR KR1020167033472A patent/KR101991165B1/ko active Active
- 2015-08-10 SG SG11201700738XA patent/SG11201700738XA/en unknown
- 2015-08-10 EP EP15834909.2A patent/EP3187555B1/en active Active
- 2015-08-10 KR KR1020197009250A patent/KR102086978B1/ko active Active
-
2017
- 2017-02-09 US US15/428,508 patent/US20170152418A1/en not_active Abandoned
- 2017-02-28 PH PH12017500375A patent/PH12017500375B1/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05271535A (ja) * | 1992-03-25 | 1993-10-19 | Hitachi Chem Co Ltd | 熱硬化性樹脂組成物及び熱硬化性接着フィルム |
| JP2004083762A (ja) * | 2002-08-27 | 2004-03-18 | Matsushita Electric Works Ltd | 熱硬化性樹脂組成物、プリプレグ、金属張り積層板、プリント配線板、多層プリント配線板 |
| JP2004197010A (ja) * | 2002-12-20 | 2004-07-15 | Hitachi Ltd | 耐熱性接着剤及びその製造方法並びにそれを用いた半導体装置 |
| JP2006526014A (ja) * | 2003-05-05 | 2006-11-16 | アドバンスト アプライド アドヘッシブズ | イミド−リンクしたマレインイミドおよびポリマレインイミド化合物 |
| JP2006160910A (ja) * | 2004-12-08 | 2006-06-22 | Asahi Kasei Electronics Co Ltd | 半導体チップ用接着材組成物 |
| JP2010059387A (ja) * | 2008-08-04 | 2010-03-18 | Hitachi Chem Co Ltd | 接着剤組成物、フィルム状接着剤、接着シート及び半導体装置 |
| JP2011001473A (ja) * | 2009-06-19 | 2011-01-06 | Hitachi Chem Co Ltd | 電子部品用絶縁材料 |
| JP2013041911A (ja) * | 2011-08-12 | 2013-02-28 | Polyplastics Co | 太陽電池用接着シート及びその製造方法、並びに太陽電池モジュール |
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| JP2018012248A (ja) * | 2016-07-20 | 2018-01-25 | 日立化成株式会社 | 積層体、金属張積層体及びプリント配線板 |
| WO2018105127A1 (ja) * | 2016-12-09 | 2018-06-14 | 日立化成株式会社 | 接合体の製造方法、遷移的液相焼結用組成物、焼結体及び接合体 |
| WO2018105746A1 (ja) * | 2016-12-09 | 2018-06-14 | 日立化成株式会社 | 接合体の製造方法、遷移的液相焼結用組成物、焼結体及び接合体 |
| JPWO2019188189A1 (ja) * | 2018-03-28 | 2021-04-08 | パナソニックIpマネジメント株式会社 | 樹脂組成物、並びに、それを用いたプリプレグ、樹脂付きフィルム、樹脂付き金属箔、金属張積層板及び配線基板 |
| WO2019188189A1 (ja) * | 2018-03-28 | 2019-10-03 | パナソニックIpマネジメント株式会社 | 樹脂組成物、並びに、それを用いたプリプレグ、樹脂付きフィルム、樹脂付き金属箔、金属張積層板及び配線基板 |
| JP7316572B2 (ja) | 2018-03-28 | 2023-07-28 | パナソニックIpマネジメント株式会社 | 樹脂組成物、並びに、それを用いたプリプレグ、樹脂付きフィルム、樹脂付き金属箔、金属張積層板及び配線基板 |
| US11924979B2 (en) | 2018-04-26 | 2024-03-05 | Mitsubishi Gas Chemical Company, Inc. | Resin composition, laminate, semiconductor wafer with resin composition layer, substrate for mounting semiconductor with resin composition layer and semiconductor device |
| JP7256967B2 (ja) | 2018-04-26 | 2023-04-13 | 三菱瓦斯化学株式会社 | 樹脂組成物、積層体、樹脂組成物層付き半導体ウェハ、樹脂組成物層付き半導体搭載用基板、及び半導体装置 |
| JPWO2019208615A1 (ja) * | 2018-04-26 | 2021-05-27 | 三菱瓦斯化学株式会社 | 樹脂組成物、積層体、樹脂組成物層付き半導体ウェハ、樹脂組成物層付き半導体搭載用基板、及び半導体装置 |
| WO2019208615A1 (ja) * | 2018-04-26 | 2019-10-31 | 三菱瓦斯化学株式会社 | 樹脂組成物、積層体、樹脂組成物層付き半導体ウェハ、樹脂組成物層付き半導体搭載用基板、及び半導体装置 |
| JP2019203110A (ja) * | 2018-05-21 | 2019-11-28 | 川口化学工業株式会社 | 高弾性、且つ着色および変色の少ない過酸化物架橋ゴム組成物 |
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| JP2024509148A (ja) * | 2021-03-04 | 2024-02-29 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | アミド-イミド-延長ビスマレイミドに基づく誘電材料 |
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| WO2024135752A1 (ja) * | 2022-12-22 | 2024-06-27 | 株式会社レゾナック | ダイボンディングフィルム及びその製造方法、ダイシング・ダイボンディング一体型フィルム及びその製造方法、並びに半導体装置の製造方法 |
| WO2025164521A1 (ja) * | 2024-02-01 | 2025-08-07 | 日本化薬株式会社 | ビスマレイミド化合物、それを用いた樹脂組成物、その硬化物、半導体素子およびドライフィルムレジスト |
Also Published As
| Publication number | Publication date |
|---|---|
| SG11201700738XA (en) | 2017-02-27 |
| PH12017500375A1 (en) | 2017-07-17 |
| US20170152418A1 (en) | 2017-06-01 |
| KR20190038683A (ko) | 2019-04-08 |
| JP6429803B2 (ja) | 2018-11-28 |
| KR101991165B1 (ko) | 2019-06-19 |
| CN106661390A (zh) | 2017-05-10 |
| EP3187555B1 (en) | 2023-08-23 |
| KR102086978B1 (ko) | 2020-03-09 |
| CN106661390B (zh) | 2020-08-07 |
| EP3187555A1 (en) | 2017-07-05 |
| MY179390A (en) | 2020-11-05 |
| PH12017500375B1 (en) | 2020-02-19 |
| KR20170005432A (ko) | 2017-01-13 |
| EP3187555A4 (en) | 2018-02-21 |
| JPWO2016031555A1 (ja) | 2017-04-27 |
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