WO2004087793A1 - 架橋ポリイミド、それを含む組成物及びその製造方法 - Google Patents
架橋ポリイミド、それを含む組成物及びその製造方法 Download PDFInfo
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1067—Wholly aromatic polyimides, i.e. having both tetracarboxylic and diamino moieties aromatically bound
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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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- G03F7/004—Photosensitive materials
- G03F7/022—Quinonediazides
- G03F7/023—Macromolecular quinonediazides; Macromolecular additives, e.g. binders
- G03F7/0233—Macromolecular quinonediazides; Macromolecular additives, e.g. binders characterised by the polymeric binders or the macromolecular additives other than the macromolecular quinonediazides
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- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
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- G—PHYSICS
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- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
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- H—ELECTRICITY
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- 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
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- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/032—Organic insulating material consisting of one material
- H05K1/0346—Organic insulating material consisting of one material containing N
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4644—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits
- H05K3/4673—Application methods or materials of intermediate insulating layers not specially adapted to any one of the previous methods of adding a circuit layer
- H05K3/4676—Single layer compositions
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
Definitions
- Crosslinked polyimide composition containing the same, and method for producing the same
- the present invention relates to a crosslinked polyimide, a composition containing the same, a method for producing the same, and a use thereof.
- the Jike Bridge polyimide of the present invention has excellent heat resistance, insulation properties, and mechanical properties, as well as conventional linear * crystalline polyimides, and at the same time, has more adhesiveness and dimensional stability due to non-crystallinity and crosslinking. Excellent in heat resistance, chemical resistance (crack prevention), and thermal decomposability, and can be used as films, multilayer boards, multilayer laminates, and molded products, and is useful as aerospace, electric and electronic parts, and vehicle parts. Material.
- the crosslinked polyimide of the present invention has a low dielectric constant and is particularly useful as an electric device or an electronic device or a component thereof.
- Integrated circuits are becoming more highly integrated, multifunctional, and denser with the advancement of microfabrication technology, and are steadily improving their performance.
- the circuit resistance and the capacitance of the capacitor between wirings increase, which not only increases power consumption, but also increases delay time, which is a major cause of reduction in device signal speed.
- One solution is to cover the wiring area with a low dielectric constant interlayer insulating film to reduce the parasitic capacitance and respond to higher device speeds.
- the interlayer insulating film will be 0.25 m wide in 2001, and will be 0.18 jum wide. In this case, a low dielectric constant film is required.
- Polyimide has excellent heat resistance, electrical insulation, and mechanical strength, but the dielectric constant of conventional polyimide is 3.5 to 3.0.
- Dendrimers, dendrons, and hyperbranched polymers (hyperbranched polymers), whose molecular structures are significantly different from those of linear polymers, have been synthesized and attracted attention in terms of both functions and structures.
- Dendrimers are macromolecules with a regular dendritic multi-branch structure whose chemical structure, molecular weight, molecular shape, and molecular size are strictly controlled.
- hyperbranched polyimide triamine (tris-4-am inopheny I) amine and acid dianhydride are used to generate a polyamic acid, which is a polyimide precursor, and then subjected to heat treatment or chemical treatment to form a hyperbranched polymer.
- Polyimides were synthesized (Macromo I ecu Ies (2000) 33, 4639).
- hyperbranched polymers exhibit similar properties to dendrimers, exhibiting low viscosity, high solubility, non-crystallinity, and multifunctionality (Macromo lecules (2000) 33, 4639; Macromo Iecu I es (2002) 35, 3732).
- An object of the present invention is to maintain the properties of polyimide having excellent heat resistance, electrical insulation, and chemical resistance, and furthermore, a novel polyimide having a lower dielectric constant than a known polyimide, a composition containing the same, and a composition containing the same. It is to provide a manufacturing method.
- the object of the present invention is to provide excellent heat resistance, insulation properties and mechanical properties as well as conventional linear and crystalline polyimides, and at the same time, to further improve adhesiveness, dimensional stability and chemical resistance (cracking) Prevention) and / or a composition containing a novel cross-linked polyimide which is excellent in thermal decomposability and can be used as a film, a multilayer substrate, a multilayer laminate, a molded product, and the like.
- an object of the present invention is to maintain the properties of polyimide having excellent heat resistance, electrical insulation, and chemical resistance, and furthermore, to provide a new polyimide having a dielectric constant lower than that of a known polyimide as an insulating material or insulating material.
- An object of the present invention is to provide an electric device or an electronic device, or a component thereof, which includes a conductive substrate or a protective material.
- a cross-linking structure and a cyclization structure are imparted to the polyimide by causing coexistence of tetraamine in the reaction between the sulfonic acid dianhydride and the aromatic diamine.
- the present invention includes a crosslinked polyimide comprising heating and condensing tetraamine, tetracarboxylic dianhydride, and aromatic diamine in a polar solvent containing toluene or xylene in the presence of a catalyst.
- a method for producing the composition is provided.
- the present invention provides a crosslinked polyimide composition produced by the method of the present invention.
- the present invention provides an electric device or an electronic device, or a component thereof, comprising an insulating material or an insulating substrate or a protective material containing a crosslinked polyimide having a dielectric constant of 2.7 or less according to the present invention.
- a novel polyimide which maintains the properties of polyimide excellent in heat resistance, electrical insulation and chemical resistance, and has a lower dielectric constant than known polyimides.
- diaminosiloxane-containing polyimides exhibit an ultra-low dielectric constant of 1.9 to 2.2, and are particularly required for high-density, highly integrated circuits, and are useful for interlayer insulating films, multilayer products, and multilayer flexible substrates.
- the polyimide of the present invention is usually in the form of a gel at room temperature. However, when the polyimide is mixed with a linear polyimide solution or generates a crosslinking reaction polyimide in the linear polyimide solution, a uniform solution is obtained.
- the crosslinked polyimide in the composition produced by the method of the present invention is a non-crystalline polyimide which has excellent adhesion, dimensional stability, high resistance to thermal decomposition, weather resistance, chemical resistance (prevention of cracking). ). It can be used for film, laminate, multilayer flexible board, surface protection film, solar cell, internal protection of oil feed pipe (prevention of cracking), etc.
- a conventional polyimide having a low dielectric constant is used as an insulating material or an insulating substrate or a protective material. It is possible to reduce power, increase signal speed, and reduce signal transmission loss.
- FIG. 1 is a diagram showing the relationship between the measured wavelength of the dielectric constant and the measured value of the dielectric constant or tangent ⁇ of the polyimide film manufactured in Example 1.
- FIG. 2 is a diagram showing the relationship between the measured wavelength of the dielectric constant and the measured value of the dielectric constant or tangent 5 of the polyimide film produced in Example 8.
- Figure 3 is a diagram showing a relationship between measured values of the measuring wavelength and the dielectric constant or tangent of Si0 2 of dielectric constant [delta].
- FIG. 4 is a diagram showing the relationship between the measured wavelength of the dielectric constant of air and the measured value of the dielectric constant or tangent S.
- FIG. 5 shows the NMR of bis- (3,4-diaminobenzyl) -piperazine.
- FIG. 6 shows the ir spectrum of the seventeenth embodiment.
- FIG. 7 shows the molecular weight distribution curve of Example 14.
- FIG. 8 shows a molecular weight distribution curve of Example 15.
- FIG. 9 shows a TG-GTA curve of Example 14.
- FIG. 10 shows a TG-GTA curve of Reference Example 2.
- the crosslinked polyimide of the present invention is produced by polycondensing tetraamine, tetracarboxylic dianhydride and aromatic diamine.
- tetraamine as part of the amine component results in the formation of a crosslinked structure and thereby a macrocyclic structure (this will be described in detail later).
- a polyimide having a low dielectric constant which has never been considered before, can be obtained.
- the dielectric constant of the polyimide of the present invention is 2.7 or less, preferably 2.2 or less.
- the lower limit of the dielectric constant is not particularly limited, but a value of about 1.9 has been obtained. Therefore, the book
- the range of the dielectric constant of the invention is usually about 1.9 to 2.7, preferably about 1.9 to 2.2.
- the measurement of the dielectric constant can be performed by an ordinary method as specifically described in the following examples. That is, it can be carried out using a commercially available LGR meter according to the usual method described in the instruction manual.
- the dielectric constants at a frequency of 1000 KHz and a frequency of 3000 KHz are measured, and the measured results are almost the same, but the dielectric constant measured at any of the frequencies of 1,000 KHz and 3000 KHz is If it is 1.7 or less, it is interpreted that the dielectric constant of the present invention is satisfied.
- the tetraamine used in the production of the polyimide of the present invention is not limited at all since it can form a crosslinked structure and a macrocyclic structure (described later) as long as it is a tetraamine, but the effect of the present invention is more excellent.
- aromatic tetraamines particularly tetraamines having two to four benzene rings, are preferable, and tetraamines having four benzene rings are particularly preferable.
- a tetraamine (hereinafter, referred to as “left and right and up and down symmetric when viewed from either direction when described in a chemical formula”) with four amino groups with respect to the basic skeleton.
- BDP Bis- (3,5-diaminobenzoyl) -1, 4-piperazine represented by the following structural formula (1). Is most preferred. BDP can be produced by a known method of reacting 3,5-diaminobenzoic acid with piperazine in N-methylpyrrolidone (NN1P), as specifically described in the following synthesis examples. .
- N1P N-methylpyrrolidone
- Examples of preferred tetraamines other than BDP include bis (3,5-diaminobenzoyl) -4,4′-diaminodiphenyl ether represented by the following structural formula (2), Bis (3,5-diaminophenyl) -2,2'-dioxazole-4,4'-diphenylsulfone represented by 3), and bis (3,5-diaminophenyl) represented by the following structural formula (4) )-2,2'-Dioxazole-4,4'-biphenyl, bis (9,9'-4-aminophenyl) represented by the following structural formula (5)-2,7-diamino-fluorene and the following structure Bis (3,5-diaminobenzoyl) -1, 4-diaminobenzene represented by the formula (6) can be mentioned.
- the methods for producing these tetraamines are also known per se, and are specifically described in the following synthesis examples.
- tetracarboxylic dianhydride used for producing the polyimide of the present invention is not particularly limited, and may be any of the tetracarboxylic dianhydrides used for producing a known polyimide. Good.
- Preferable examples include biphenyl perhydric acid dianhydride, pyromellitic dianhydride, benzophenonetetracarboxylic dianhydride, bis (dicarboxyphenyl) propane dianhydride, 4, 4 ′ -[2,2,2-trifluoro-1- (trifluoromethyl) ethylidene] bis (1,2-benzenedicarboxylic anhydride, bis (carboxyphenyl) sulfone dianhydride, bis (dicaroxyphenyl)
- aromatic dianhydrides such as ether dianhydride, thiophene tetracarboxylic dianhydride, and naphthalene tetracarboxylic dianhydride, etc.
- the tetracarboxylic dianhydride alone or two or more kinds may be used.
- the aromatic diamine used in the production of the polyimide of the present invention is not particularly limited, but may be a known polyimide. Any of the aromatic diamines used may be used, with preferred examples being 1,4-benzenediamine, 1,3-benzenediamine, 2,4-diamino-3,3′-dimethyl-1,1′-bihue.
- Aromatic diamines can be used alone or in admixture of two or more.
- diaminosiloxanes can also be used.
- “Diaminosiloxane” means diamine in which the main chain of the polyimide has a siloxane structure. The number of silicon atoms in the siloxane structure is preferably about 1 to 50. Each silicon atom in the siloxane structure may be substituted with one or two lower (G Factory C 6 ) alkyl groups and / or lower (C Hiro G 6 ) alkoxy groups. Preferred examples include those represented by the following general formula (7).
- RR 2 , R 3 and R 4 are independently of each other, an alkyl group having 1 to 6 carbon atoms or an alkoxyl group having 1 to 6 carbon atoms, and R 5 and R 6 are each independently A single bond (that is, NH 2 and S i are bonded), an alkylene group having 1 to 6 carbon atoms or -R 7 -0- (where R 7 is an alkylene group having 1 to 6 carbon atoms), and n is 0 to 4 9 represents an integer).
- diaminosiloxanes represented by the general formula (7) particularly preferred are those represented by the following structural formula (8).
- n represents an integer from 0 to 49
- the diaminosiloxane preferably has an amine value (value obtained by dividing the molecular weight of the compound by the number of amino groups) of about 200 to 100,000.
- the diaminosiloxane may be used alone or in combination of two or more.
- diaminosiloxane as one of the diamine components, a dielectric material having a particularly low dielectric constant, that is, an extremely low dielectric constant of about 1.9 to 2.2 is obtained.
- a polyimide having a low dielectric constant can be obtained.
- the content of diaminosiloxane in the total diamine component is not particularly limited, but is preferably 9 to 40 mol%, and more preferably 18 to 30 mol%.
- the dielectric constant is about 2,4 to 2.7.
- the present invention also relates to a method for condensing tetraamine, a tetracarboxylic acid dianhydride and an aromatic diamine by heating in a polar solvent containing toluene or xylene in the presence of a catalyst.
- an acid-one-base two-component catalyst can be preferably used.
- the acid catalyzes the imidization reaction, and the acid easily dissolves in the solvent due to the presence of the base.
- the acid is preferably an acid which is easily thermally decomposed or vaporized by heating to about 200 ° C. and scatters, and specific examples thereof include oxalic acid, malonic acid, formic acid, pyruvic acid and crotonic acid. be able to.
- oxalic acid and malic acid are thermally decomposed and scattered, respectively, as follows. Acids that are easily thermally decomposed or vaporized and scattered by heating to about 200 ° C. are preferable because they can be scattered and removed from the molded product by overheating during molding. These acids can be used alone or in combination of two or more. Heating
- the base of the acid-one-base two-component catalyst is not particularly limited as long as it is a base capable of dissolving the acid catalyst in a solvent, but may be a heterocyclic ring such as pyridine and methylmorpholine. Formula amines are preferred.
- the bases can be used alone or in combination of two or more.
- a lactone monobasic two-component catalyst that generates an acid by a chemical reaction can also be preferably used.
- the reaction can be carried out using a catalyst system utilizing the next equilibrium reaction of lactone, base and water.
- the polyimide solution can be obtained by heating to a temperature of 140 to 180 ° C. using this system of ⁇ acid group ⁇ + ⁇ base ⁇ as a catalyst. Water generated by the imidization reaction is removed from the reaction system by azeotropic distillation with the reaction solvent, toluene or xylene. At the end of the imidization of the reaction system, the carboxylic acid group + base turns into a lactone and a base. When the catalyst loses its catalytic action, it is simultaneously removed from the reaction system with toluene. Since the above-mentioned catalyst substance is not contained in the polyimide solution after the reaction, the polyimide solution according to this method can be applied as it is to the substrate film as a high-purity polyimide solution.
- the lactone is preferably r-valerolactone
- the base is preferably a heterocyclic amine such as pyridine and methyl morpholine.
- T-valerolactone with pyridine is shown below as an example.
- the amount of the acid or lactone added to the two-component catalyst is not particularly limited, but the concentration of the acid or lactone at the start of the reaction is 5 to 30 mol%, preferably 5 to 30 mol%, based on the concentration of tetracarboxylic dianhydride.
- the concentration of the base is preferably about 100 to 200 mol% with respect to the acid or lactone.
- the solvent used for the reaction is a polar solvent containing toluene or xylene.
- a polar solvent containing toluene or xylene, water generated by imidization can be removed from the reaction system by azeotropic distillation with toluene or xylene. Note that it is also possible to use a mixture of toluene and xylene.
- the polar solvent is not particularly limited, but is a preferred example. Examples thereof include N-methyl-2-pyrrolidone, dimethylformamide, dimethylacetamide, dimethylsulfoxide, sulfolane, and tetramethylurea. These solvents can be used alone or in combination of two or more.
- the mixing ratio (acid / amine) of the tetracarboxylic dianhydride and the amine component (diamine and tetraamine) to be subjected to the imidization reaction is preferably about 1.05 to 0.95 in molar ratio.
- the concentration of the dicarboxylic acid dihydrate in the whole reaction mixture at the start of the reaction is preferably about 4 to 16% by weight, and the concentration of acid or lactone is about 0.2 to 0.6% by weight.
- the concentration of the base is preferably about 0.3 to 0.9% by weight, and the concentration of toluene or xylene is preferably about 6 to 15% by weight.
- the reaction time is not particularly limited, and varies depending on the molecular weight of the polyimide to be produced, but is usually about 3 to 15 hours.
- the reaction is preferably performed with stirring.
- the reaction temperature is not particularly limited, but is preferably 160 ° C. to 200 ° C. When an acid is used as a catalyst as described above, the reaction temperature is preferably lower than the thermal decomposition temperature or vaporization temperature of the acid.
- a polyimide is produced by a direct imidation reaction between the tetracarboxylic dianhydride and the amine component (diamine and tetratamine). Then, the crosslinked polyimide is formed by the function of the tetraamine as the crosslinker. Further, it is considered that a large cyclized structure is formed by this crosslinking. Due to these crosslinked and macrocyclic structures, the polyimides of the present invention provide a lower dielectric constant than known linear polyimides. The formation of the crosslinked and macrocyclic structures will be described later in the description of the method for producing a copolymer synthesized by a sequential reaction.
- the polyimide of the present invention may be a homopolymer (one type of tetra-dicarboxylic dianhydride and one type of aromatic diamine) or a copolymer.
- a homopolymer one type of tetra-dicarboxylic dianhydride and one type of aromatic diamine
- a copolymer by using a plurality of desired tetracarboxylic dianhydrides and / or a plurality of desired aromatic diamines to form a copolymer by a sequential reaction, it is possible to impart adhesiveness and dimensional stability and to provide a low dielectric constant. It is preferable because any desired property or function, such as chemical conversion, can be imparted to the polyimide.
- a copolymerized polyimide is produced (hereinafter, a copolymerized polyimide produced by a sequential reaction may be conveniently referred to as a "sequentially synthesized copolymerized polyimide").
- imid oligomer is formed by reacting pentaamine, tetracarboxylic dianhydride (A) and aromatic diamine (B) by the above method. .
- the imide oligomer can be produced by setting the reaction time in the above method to about 60 to 120 minutes, preferably about 60 to 90 minutes.
- tetrahydroluponic dianhydride and aromatic diamine are added to further react.
- the reaction may be carried out by further adding a third tetracarboxylic dianhydride (A 2 ) and an aromatic diamine (B 2 ).
- Imidodoligomer used in the production of [I] or [II]. are, but are not limited to, preferred examples of effective tetrafluorosulfonic anhydrides such as biphenyltetrahydrosulfonic anhydride (BPDA), pyromellitic dianhydride (PMDA) and bis (dicarboxylate) Phenyl) ether (referred to as ODPA).
- Preferred examples of the aromatic diamines effective for producing the imido oligomer [I] or [II] include diamino toluene.
- DAT diaminodiphenyl ether
- FDA (4-aminophenyl) fluorene
- mTPE bis (4-aminophenoxy) -1-1.3-benzene
- the resulting imido oligomer [I] or [II] is further reacted with a second tetra-carboxylic dianhydride (A) and a second aromatic diamine (B 1 ) by a sequential reaction. Then, a copolymer intermediate or [IV] is formed as described below.
- Such copolymerized intermediates react as follows to form a crosslinked structure, and a crosslinked copolymerized polyimide is formed.
- a macrocyclic structure is formed with the formation of the crosslinked structure as shown in the following reaction formula.
- the following cyclic structures are called “macrocyclic” structures in order to distinguish them from the cyclic structures contained in the monomer compound itself, such as a benzene ring-piperazine ring.
- reaction conditions for forming such a crosslinked macrocyclic structure via the above-mentioned copolymer intermediate by successively reacting the above imido oligomer with the addition of tetracarboxylic dianhydride and aromatic diamine to the above imid oligomer are not particularly limited, but it is usually preferable to react at 160 ° C. to 200 ° C. for about 3 hours to 15 hours.
- the catalyst and reaction solvent used are as described above.
- a molecular weight distribution curve may show more than one peak from a single peak shape.
- the formation of the crosslinked macrocyclic structure has been described by taking as an example a copolymer crosslinked polyimide via a copolymer intermediate represented by the general formula [VI I], the case of a homopolymer or 1 mol Even when the number of moles of the tetracarboxylic dianhydride and the aromatic diamine added to the imide oligomer is different from the number of moles exemplified above, the above-mentioned cross-linking and A polyimide is formed that at least partially contains the cyclized structure.
- the solution of the Jiyuji Bridge Cyclized Polyimide is a homogeneous solution during the reaction, but gels usually form at room temperature. When the solution is heated again to 100 to 180 ° C., a solution having a low viscosity is obtained.
- a crosslinked “macrocyclized polyimide solution and a linear polyimide solution are mixed and dissolved to form a polyimide solution that is stable at room temperature.
- a liquid composition that is stable at room temperature can be obtained, and the linear polyimide solution can be produced by performing the above-described production method of the present invention without using tetraamine.
- the mixing ratio of the cross-linked polyimide to the linear polyimide in the mixed solution is Although it is not particularly limited, it can be arbitrarily selected according to the properties of the cross-linked polyimide and the linear polyimide to be used and the properties of the desired mixture. Usually, the molar ratio is 20:80 to 80. 2 is about 0.
- the above-mentioned mechanical mixing that is, a method of mechanically mixing the prepared cross-linked polyimide solution and the linear polyimide solution is used.
- the thus obtained composition may be conveniently referred to as a “mechanically mixed polyimide composition”), and (1) the crosslinked polyimide composition produced by the method of the present invention (the copolymerized intermediate A tetramer sulfonic acid dianhydride and an aromatic diamine to perform a condensation reaction, and (2) the production method of the present invention in a linear polyimide composition, There is a method of generating a crosslinked polyimide.
- a composition containing both a crosslinked polyimide and a linear polyimide produced by performing the condensation reaction in one of the polyimide compositions in this manner is conveniently referred to as a ⁇ mixed reaction type polyimide composition ''.
- the mechanically mixed polyimide composition may be heterogeneous, and a mixed reaction type polyimide composition described in detail below is more preferable.
- the tetracarboxylic dianhydride and the aromatic diamine added later react with each other to produce a linear polyimide, and the composition is formed into a mixture of a crosslinked polyimide and a linear polyimide.
- the crosslinked polyimide and the linear polyimide are intertwined.
- the amount of the tetracarboxylic dianhydride to be added later can be arbitrarily set, but the mixture of the crosslinked polyimide and the linear polyimide is usually in a weight ratio of 280 to 800. Degree, preferably 2 5 7 5 to 6 0 It is about Z 40. It is preferable that the reaction is usually performed at 160 ° C. to 200 ° C. for about 3 hours to 10 hours, as described above.
- a crosslinked polyimide is produced by performing the above-described production method using a tetraamine in a linear polyimide composition.
- the linear polyimide composition can be produced by a method without using a tetraamine in the method of the present invention (US Pat. No. 5,502,143).
- the molecular weight of the linear polyimide is preferably 25,000 to 400,000, more preferably 30,000 to 200,000 as a weight average molecular weight in terms of polystyrene. It is considered that the crosslinked polyimide and the linear polyimide are intertwined.
- the reaction conditions are preferably in the range of 160 ° C. to 200 ° C. for about 3 hours to 10 hours.
- the amount of tetraamine to be added can be appropriately selected, but usually, about 81 to 12/1 mol is suitable for 1 mol of tetracarboxylic dianhydride (converted to monomer) constituting the linear polyimide. is there.
- the mixture of cross-linked polyimide and linear polyimide is also formed by reacting tetraamine with an excess amount of tetracarboxylic dianhydride and aromatic diamine compared to the above sequential synthesis reaction. .
- the composition obtained by the production method of the present invention also includes a composition containing a non-crosslinked linear polyimide.
- the crosslinked polyimide of the present invention can be mixed with other crystalline engineering plastics to form a composite material.
- other crystalline engineering plastics for example, nylon, fluororesin, polyacetal, polyethylene perphthalate, liquid crystal polymer, polyether ether ketone, polyphenylene sulfide, polyarylate, polysulfone, polyether Lusulfone, polyether imide, polyamide imide and the like.
- composition of the present invention can be easily processed by forming a polyimide solution that is stable at room temperature, and can easily produce a film, a multilayer substrate, a laminated product, or the like by spin coating or a casting method.
- a photosensitive polyimide composition By adding a photoacid generator to the above-mentioned crosslinked polyimide composition of the present invention, a photosensitive polyimide composition can be obtained.
- the photoacid generator is a compound that generates an acid when irradiated with light, and the acid dissolves the polyimide. Therefore, when the polyimide is made into a film and is selectively exposed through a photomask having a desired pattern shape, the film can be patterned.
- the technique itself of imparting photosensitivity by blending a photoacid generator into a polyimide composition has already been known by the applicant of the present invention by applying for a patent (W099 / 19771), and this technique is referred to as the present invention. It can be applied to the composition as is.
- the photoacid generator is a compound that generates an acid when irradiated with a light beam or an electron beam. Since the polyimide is decomposed by the action of an acid and becomes alkali-soluble, the photoacid generator used in the present invention is not particularly limited, and any compound that generates an acid when irradiated with light or an electron beam is used. Can also be used. Preferred photoacid generators include photosensitive quinonediazide compounds and onium salts.
- Preferred examples of the photosensitive quinonediazide compound include low-molecular aromatic hydroxy compounds of 1,2-naphthoquinone-12-diazido-5-sulfonic acid, 1,2-naphthoquinone-12-diazido4-sulfone, for example, 2,3,4 Examples thereof include, but are not limited to, esters of trihydroxybenzophenone, 1,3,5-trihydroxybenzene, and 2- and 4-methyl-phenol, and 4,4′-hydroxy-propane.
- azonium salts are arylaryl salts, such as 4 (N-phenyl) aminophenyldiazonium salts, diarylhalonium salts, such as diphne Phenyl rhododium salt, triphenylsulfonium salt, for example, bis-f- (diphenylsulfonio) phenyl ⁇ sulfide, bishexafluoroantimonate, but are not limited thereto. Not something.
- the photoacid generator is contained in an amount of 10 to 50% by weight based on the weight of the polyimide.
- the solution of the photosensitive cross-linked polyimide composition of the present invention was cast on a substrate, heated to 60 to 90 ° C to form a film, irradiated with light through a mask, and then etched with an alkali solution.
- a patterned polyimide film can be obtained by forming a positive type image.
- ultraviolet rays are used, but high-energy radiation such as X-rays or electron beams or high-power oscillation lines of an ultra-high pressure mercury lamp can also be used. Irradiation or exposure is performed through a mask, but a radiation beam can be applied to the surface of the photosensitive polyimide layer.
- the radiation is carried out using an ultraviolet lamp emitting a wavelength in the range from 250 to 450 nm, preferably from 300 to 400 nm.
- the exposure may be performed using a monochromatic or polychromatic method. It is desirable to use commercially available radiation equipment, such as contact and interlayer exposure equipment, scanning floodlight equipment, or wafer steppers.
- the pattern can be removed from the irradiated area of the photoresist layer by treating the photosensitive layer with an alkaline aqueous developer. These treatments are made possible, for example, by eluting the exposed portion of the substrate by immersing or spraying under pressure.
- the alkali used as the developer is not particularly limited, but may be an amino alcohol such as aminoethanol, methyl morpholine, potassium hydroxide, sodium hydroxide, sodium carbonate, dimethylaminoethanol, or tetramethylammonium hydroxide.
- the concentration of these alkalis in the developer is not particularly limited, but is usually about 30 to 5% by weight.
- development times depend on exposure energy, developer strength, type of development, predrying temperature, developer processing temperature, and the like. Generally, it is about 1 to 10 minutes in immersion development, and about 10 to 60 seconds in spray development. Development is Stopped by dipping or spraying in an inert solvent such as isopropanol or deionized water.
- the positive-working photosensitive polyimide composition of the present invention can be used to make polyimide coatings having a layer thickness of 0.5 to 200 microns and relief structures with sharp contours.
- the polyimide can be electrodeposited.
- the anionic group is a group that becomes an anion in a solvent (described later) of the electrodeposition composition, and is preferably a carboxyl group or a salt thereof.
- the anionic group may be contained in a siloxane-containing diamine / tetracarboxylic dianhydride component, but it is preferable to use a diamine having an anionic group as one of the diamine components.
- Such an anionic group-containing diamine is preferably an aromatic diamine in order to improve the heat resistance of the polyimide, the adhesion to an electrodeposit, and the degree of polymerization.
- anionic group-containing aromatic diamines examples include 3,5-diaminobenzoic acid, 2,4-diaminophenylacetic acid, 2,5-diaminoterephthalic acid, 3,3′-dicarboxy-4, Aromatic diaminocarboxylic acids such as 4'-diaminodiphenylmethane, 3,5-diaminoparatoluic acid, 3,5-diamino-2-naphthalenecarboxylic acid, and 1,4-diamino-2-naphthalenecarboxylic acid 3,5-Diaminobenzoic acid is particularly preferred.
- Such an anionic group-containing aromatic diamine can be used alone or in combination of two or more.
- the diamine component may be only a siloxane-containing diamine.
- the content of the unit having an anionic group is preferably about 10 to 70 mol% in the polyimide molecule.
- a copper foil (positive electrode) and a stainless steel plate (negative electrode) to be coated are immersed in the electrodeposition solution, and re-electrodeposition can be performed by applying a current from a DC power supply between the two electrodes. Further, a positive type image is formed by adding the above-mentioned photoacid generator to the polyimide composition for electrodeposition, and performing photolithography after the electrodeposition. be able to.
- Crosslinked polyimide is non-crystalline, has excellent adhesion, and has good dimensional stability. Due to the cross-linked structure, it has strong chemical resistance such as cracks and resists thermal decomposition. Bow I Tensile strength is strong, but weak to tearing. Crosslinking in high molecular weight linear polyimide solution.
- the polyimide film obtained from the polyimide in which the cyclized polyimide has been formed has a sufficient tensile strength and tear strength, and furthermore has excellent weather resistance. Utilizing these characteristics, it can be used as protection for the inside of multilayer boards, laminated products, oil feed pipes, for solar cells, and as a surface protective film.
- the crosslinked polyimide of the present invention having a dielectric constant of 2.7 or less, preferably 1.9 to 2.2 is an electric device or an electronic device containing an ultralow dielectric constant crosslinked polyimide as an insulating material or an insulating substrate or a protective material. It is preferably used for equipment or parts thereof.
- insulating materials or insulating substrates or protective materials made of a specific crosslinked polyimide having a dielectric constant of 7 or less.
- the insulating material, insulating substrate or protective material (1) interlayer insulating film of semiconductor element, (2) laminated board, multilayer circuit board or flexible copper clad laminated board, (3) or semiconductor Examples include a film for chip coating.
- the semiconductor chip coating film include a passivation film, a line shielding film, and a buffer coat film.
- the interlayer insulating film refers to an insulating film for electrically separating wiring layers of a multilayer wiring such as LSI.
- Polyimide which has excellent heat resistance and chemical resistance (solder heat resistance) as well as insulation, is used.
- the dielectric constant of KAPTON (trade name) and Upilex (trade name) of ordinary polyimide is around 3.3, and a polyimide having a low dielectric constant is required in the future as fine processing is required.
- the crosslinked polyimide having a low dielectric constant used in the present invention has a dielectric constant of 2.7 or less, particularly 1.9 to 2.3, while having characteristics as a polyimide.
- the semiconductor element refers to ( ⁇ ) a semiconductor compound integrated circuit element, (ii) a hybrid integrated circuit, (iii) a light emitting diode, ( ⁇ ) a charge coupled element, and the like.
- individual semiconductors such as diodes, transistors, compound semiconductors, thermistors, transistors and thyristors, DRAM (dynamic random access memory), SRAM (static random access memory), and EPROM Memory elements such as eraseable 'programmable' read 'only' memory), mask ROM (mask 'read' only 'memory), EEPROM (electrical' erasable 'programmable' read only 'memory), flash memory, etc.
- DSP digital 'signal' processor
- AS IC application specific integrated circuit
- MM IC monolithic 'micro:!: One integrated circuit
- integrated circuit elements such as integrated circuit elements, hybrid integrated circuits (high Ritsudo IC), a light emitting diode, means such as photoelectric conversion elements such as a charge coupled device.
- Examples of the method of applying the polyimide composition for forming the interlayer insulating film include a spin coating method, a dive method, a potting method, a die coating method, a spray coating method, and the like.
- a spin coat method is preferred from the viewpoint of uniformity of in-plane distribution of film thickness.
- a die coating method is preferable, as well as a spin coating method, as a method having a higher liquid yield.
- plastic films have high insulation performance and require parts with high reliability, such as cable-insulated insulation, printed wiring boards, slot insulation of rotating machines, and other electronic and electrical equipment, film capacitors, etc. Applied to electronic components.
- the history of the development of such plastic insulation films is based on the fact that plastics with excellent environmental resistance are used for equipment insulation.
- the development of films for materials has been promoted, and the synthesis and development of engineering plastics with particularly excellent heat resistance have been promoted.
- For electronic components such as film capacitors in addition to the development of heat resistance of plastic materials, development of materials with a large dielectric constant has been promoted in order to obtain even higher capacitance.
- plastic materials have been required to have higher performance in electronic devices that accumulate a large amount of information corresponding to the advanced information society, process at high speed, and transmit at high speed.
- low electrical permittivity and low dielectric loss tangent are required as electrical characteristics corresponding to higher frequencies.
- inverter control that can be precisely controlled for higher efficiency and higher functionality is performed.
- the leakage current of the high-frequency component in the insulating member increases, it is required to reduce the dielectric constant as an electrical characteristic to prevent the increase.
- the crosslinked polyimide used in the present invention has an extremely low dielectric constant of 2.7 or less, and yet has excellent electrical insulation properties, dimensional stability, chemical resistance, etc. inherent to polyimide. By using it as a multi-layer circuit board or a laminated board, power consumption can be reduced and signal speed can be increased.
- Flexible copper-clad laminates are mainly made of polyimides with excellent properties and polyesters with general-purpose properties, and some are glass-epoxy.
- the wholly aromatic polyimide film is stable from an extremely low temperature of 269 to + 400 ° C to an extremely high temperature, and has the highest heat resistance and cold resistance among plastics.
- it has become mainstream to mount components directly on flexible wiring boards as well as on rigid wiring boards. After mounting components such as semiconductor chips, capacitors, and resistors, they are exposed to high temperatures of 240-270 ° C in the solder reflow process.
- Polyimide is the best material that can withstand this.
- the crosslinked polyimide used in the present invention is a solution directly imidized, it has good processability. Furthermore, because of its low dielectric constant, it is excellent as a copper-clad substrate for fine processing.
- Flexible circuit boards have a three-layer structure and a two-layer structure.
- the three-layer flexible circuit board (hereinafter, “three-layer FPC” or “three-layer flexible”) has a structure in which a polyimide film and copper foil are bonded together with an adhesive.
- Flexible circuit boards with a two-layer structure hereinafter referred to as “two-layer FPC” or “two-layer flexible board”) do not use adhesives and consist only of copper foil and polyimide film.
- Two-layer flex is manufactured in a variety of ways.
- Methods for producing the two-layer FPC include a casting method in which a polyimide precursor varnish is applied on a copper foil, dried and cured, a sputtering method in which copper is deposited on a polyimide film, and a plating method.
- the casting method not only electrolytic foil (which has irregularities on the surface and is convenient for bonding), but also rolled foil (having high flexibility) and other various metal foils can be used as copper foil.
- the two-layer FPC manufactured by the casting method has excellent adhesion between the polyimide film and copper, and has excellent heat resistance, flame retardancy, electrical properties, and chemical resistance.
- the sputtering method and the plating method are characterized in that the thickness of copper can be arbitrarily controlled. With a very thin copper layer, fine patterns of very fine lines can be easily created. However, since copper is deposited on an existing smooth polyimide film, there is a problem that the adhesive force between the copper and the film is slightly weak.
- the three-layer FPC Due to the presence of the adhesive, the three-layer FPC has a problem in that even if the heat treatment can be stopped for a short time, the heat treatment for a long time deteriorates the adhesive and lowers the reliability. In addition, the presence of the adhesive layer also caused a problem of copper migration and penetration of the plating solution. On the other hand, the two-layer FPC does not use an adhesive, so all of the above disadvantages are cleared.
- the two-layer FPC has the following features. Excellent heat resistance and flame retardancy. Low dielectric constant and dielectric loss tangent, low frequency dependence and low temperature dependence. High surface resistivity and volume resistivity, stable for various treatments. Low ionic impurities and high reliability. The dimensional change rate is small, and the change rate in the XY direction is almost the same. Degradation of peel strength by heat is small. Easy wire-to-bonding Monkey
- the two-layer FPC has extremely high performance, and is used in hard disk drives, flexible disk drives, printers, and the like that require high flexibility. It is also used in gasoline tank level sensors that require chemical resistance in the engine room of automobiles that require high heat resistance.
- the substrate of the flexible copper-clad board of the present invention is prepared by casting an imidized varnish on a copper substrate, and thus can be processed at a low temperature of 250 ° C. It has a low dielectric constant of 1.9 to 2.3 and is suitable for fine processing, and has the advantage that migration of copper is hardly observed.
- polyimide for semiconductor coating.
- the reasons are (1) prevention of sliding of fine aluminum circuits on the element surface and cracking of the package based on thermal shrinkage of the encapsulating resin and thermal shock during surface mounting, and (2) inorganic oxide such as silicon oxide on the chip surface. This is because the use of polyimide is remarkable for preventing cracks in the passivation film, (3) interlayer insulation of multilayer aluminum circuits, and preventing disconnection by flattening circuit steps on the element surface.
- the main uses of polyimide for semiconductor coating are as follows.
- the passivation film is formed on the element surface to a thickness of 25 jUm.
- the purpose of the passivation film is to prevent the element surface from being contaminated by the outside world and to stabilize the element surface.
- inorganic materials were used, but polyimides with good workability and no coating defects such as pinholes and good workability have come to be used.
- inorganic passivation films has again been used since the moisture resistance level of polyimides has become insufficient since the demand for extremely high moisture resistance has increased to SI.
- polyimide as a buffer coat film described later is used.
- One of the high integration methods of semiconductor devices is a multilayer wiring technology.
- an inorganic material for example, CVD-Si 02 (Chemical vapor deposition-Si 02)
- CVD-Si 02 Chemical vapor deposition-Si 02
- the inorganic material has the same thickness in all parts. Due to the deposition, the step formation of the first layer wiring remains on the interlayer insulating film as it is, and a stepped structure can be formed. For this reason, the second layer wiring formed on this film is likely to be broken at the shoulder.
- an organic material such as polyimide
- the fluidity of the polyimide causes the step on the first layer wiring to be flattened and flattened. There is no step in the two-layer wiring, eliminating the risk of disconnection.
- the polymer insulating film for semiconductors must have the following characteristics. (1) It must have heat resistance enough to withstand heat treatment during manufacturing. (2) Good adhesion to the substrate (inorganic film, organic sealing material, etc.) to be applied. (3) There are few ionic impurities and the characteristics of the semiconductor are not impaired. Other desirable properties include low expansion, low stress, and low Water absorption, low dielectric constant, good coating workability, easy microfabrication, thick film formation, low temperature curability, etc. are improved.
- Polyimide was the resin that best satisfied the above required properties. Polyimide was excellent in heat resistance, electrical properties, and mechanical properties, had few ionic impurities, and had good pattern addition.
- cross-linked polyimide as a chip coating film
- advantages of using cross-linked polyimide as a chip coating film are low dielectric constant, excellent adhesion, and no migration. In addition to the advantages of processability, it shows superior properties compared to conventional polyimides.
- a part of the solution of the example was diluted in dimethylformamide, and the molecular weight and the molecular weight distribution were measured with a high performance liquid chromatography (manufactured by Tosoichi). It shows the molecular weight in terms of c- polystyrene, indicating the maximum molecular weight (M), number average molecular weight (Mn), weight average molecular weight (Mw), and Z average molecular weight (Mz). MwZMn and MzZMn indicate molecular weight dispersion and bridge. -Thermal analysis was performed using a thermal analyzer GT A-50 manufactured by Shimadzu Corporation, and the residual amount (%) at 5% decomposition temperature, 10% decomposition temperature, and 600 ° C is shown.
- the infrared absorption spectrum was measured using an infrared analyzer Spectral manufactured by PerkinElmer. 1 785 cm one 1 imido bond, 1 720 cm one 1 - G0-NH- bond, Okisazoru is absorbed in 1 651 cm- 1.
- the dielectric constant of the polyimide film was measured using a Precision LCR meter, 4285A (Agilent). To improve the reading accuracy of the dielectric constant measurement electrode, the micrometer was changed to a digital type so that the film thickness could be read up to 1 jUm. Measured according to the instructions. The electrode non-contact method that can measure easily and accurately is adopted.
- the thickness of the polyimide film shall be approximately above, and the frequency (kHz) shall be measured at each frequency of 75, 100, 200, 300, 500, 800, 1000, 2 000, 3000 and 5000, and the dielectric constant and tangent delta shall be measured. I asked.
- G determine the molecular weight by PC (polystyrene conversion).
- O g, oxalic anhydride 1.35 g, pyridine 4.8 g, P450 g and toluene 50 g were added, and the mixture was heated and stirred at 180 ° C. and 180 rpm for 90 minutes while flowing nitrogen. After air cooling, 37.23 g of 0DPA, 51 g of diaminosiloxane (the above structural formula (8), amine value of 425), 120 g of toluene, and 399 g of NMP were added.
- a mixed reaction was performed. The same operation as in Example 1 was performed.
- Example 3 100 g of the above linear polyimide solution (15%) was taken, and a polyimide having the same composition as in Example 3 was polycondensed.
- the solution was stirred in a bath at 180 ° C for 10 minutes and stirred at 160 rpm to form a solution.
- the mixture was heated and stirred at 180 ° C and 165 rpm for 4 hours and 35 minutes. It was a solution even at room temperature.
- a mixing reaction of a polyimide having the same composition as in Example 3 and a linear polyimide was performed.
- 17.O g, toluene 6 O g, NMP A gel was generated by adding 135 g, and became a homogeneous solution in 180 minutes at 170 ° C.
- the linear polyimide (15% by weight concentration) synthesized in Example 5 and the crosslinked cyclic polyimide containing tetraamine (15% by weight concentration) synthesized in Example 6 were mixed and stirred at 10 Og each. It was liquid at room temperature.
- the polyimide liquids of Examples 1 to 8 were coated on a glass plate with a bar coder and heated in an infrared oven at 90 ° C. for 90 minutes.
- the polyimide film was stripped from the glass plate, a film was placed on a stainless steel frame plate, and fixed with a cap. This was heated in an infrared oven at 180 ° C for 2 hours and 220 ° C for 1 hour.
- This polyimide film has a thickness of about 50 m or more.
- the dielectric constant was measured using an Agilent Precision LCR meter 4285. Table 1 shows the dielectric constant and t an (5 for 1000 kHz and 3000 kHz.
- Example 1 134 g of 3,5-diaminobenzoic acid, 34.4 g of piperazine, 5 g of NMP and 40 g of toluene were placed in a separable flask, and nitrogen was passed through using the same apparatus as in Example 1. The mixture was heated and stirred at 160 rpm and 170 rpm for 2 hours. When left overnight, crystals precipitated. The solution was suction filtered and washed with ethanol.
- 3,5-Dinitrobenzoyl chloride 10.1 g, 4,4'-diaminodiphenyl ether 4.
- O g, NMP 60 g, and toluene 40 g were placed in a three-necked flask, and the mixture was added to the flask. C, heated and stirred at 165 rpm for 3 hours. When left overnight, crystals precipitated. The mixture was filtered and washed with ethanol (12.2 g).
- a glass-cooled three-necked flask equipped with a stainless steel anchor stirrer was fitted with a cooling tube with a ball equipped with a water separation trap.
- the flask was placed in a silicone oil bath while passing nitrogen gas at 500 m for 1 minute, and heated and stirred.
- 3,5-diaminobenzoic acid molecular weight 155.25) 134 g (0.881 mol)
- piperazine molecular weight 86.14
- NMP N Methylpyrrolidone
- BTDA 3,4,3 ', 4'-benzophenonetetracarboxylic dianhydride
- BDP molecular weight 364.39
- BPDA 3,4,3 ', 4'-biphenyltetracarboxylic dianhydride
- NMP IOO g was added, and the mixture was heated and stirred at 175 ° C and 130 rpm to form a solution.
- the mixture was heated and stirred at 170 ° C and 175 rpm for 5 hours and 25 minutes. After 2 hours, an azeotropic mixture of toluene and water was removed from the system. A part of this solution was cast on a glass plate and heated at 90 ° C for 30 minutes to form a strong film. When left overnight, the reaction solution became gel-like. A polyimide solution having a concentration of 9.5% was produced.
- Fig. 4 shows the GPC diagram for molecular weight measurement.
- the calorimetric analysis shows that 5% weight loss is 401 ° C, 10% weight loss is 509 ° C, and the remaining amount at 600 ° C is 75%.
- Figure 2 shows the infrared absorption spectrum.
- BDP 3.64 g (10 mmol), BPDA 11.76 g (40 mmol), 9.9-bis (4-aminophenyl) fluorene (referred to as FDA) (molecular weight 348.5) 15.38 g (40 Mmol), valerolactone (0.8 g), pyridine (1.6 g), NMP (200 g), and toluene (30 g), and the mixture was heated with stirring at 180 ° C. and 180 rpm for 60 minutes in a nitrogen stream.
- FDA molerolactone
- Example 14 The same operation as in Example 14 was performed.
- a glass condenser tube equipped with a 25 ml water separation trap was attached to a glass three-separable flask equipped with a stainless steel anchor stirrer. While flowing 500 meters l min of N 2 gas, with the above-described flask silicone oil bath, heated, and stirred.
- the reaction was carried out at 180 ° C and 175 rpm for 9 hours and 5 minutes. A strong film was produced. It was a 10% polyimide solution. When left overnight, it turned into a gel.
- the polyimide solution had a concentration of 10 ⁇ 1 ⁇ 2. When left overnight, it turned into a gel.
- Example 15 The reaction of Example 15 was carried out in 210 g of the linear polyimide solution of Reference Example 1 (containing 35.7 g of polyimide). That is, BDP 3.64 g, diamino toluene 4.
- Example 1 In 5 g of polyimide solution of 5 (containing 30 g of polyimide), The reaction of Example 1 was performed. That is, in the 10% polyimide solution of Example 15, 8.23 g of BPDA, 14.63 g of FDA, 0.45 g of oxalic acid, 1.6 g of pyridine,
- the reaction was carried out at 80 ° C. 17 Orpm for 4 hours and 25 minutes. Even when the reaction solution was left overnight, the polyimide solution was stable at room temperature.
- the remaining amount at 600 ° C was 83%.
- M molecular weight and molecular weight distribution were measured by GPC.
- Example 1 15 ⁇ 1 ⁇ 2 in 200 g of polyimide solution (polyimide content 30 g )
- the imidation reaction of Example 2 was performed. It was a mixed reaction of linear polyimide. That is, to 200 g of the polyimide of Reference Example 1, 1.48 g of ODPA, 2.26 g of diaminotoluene, 0.4 g of oxalic acid, 0.8 g of pyridine, 56 g of NMP, and 40 g of toluene were added. The reaction was carried out at 180 ° C. and 170 rpm for 70 minutes.
- M molecular weight and molecular weight distribution by GPC were measured.
- Thermal analysis was performed. The 5% weight loss was 4403 ⁇ 4, the 10% weight loss was 5503 ⁇ 4, and the remaining amount at 600 ° C was 85%.
- the imidation reaction of Reference Example 2 was carried out in 140 g (polyimide content: 14 g) of the 10% polyimide of Example 16. That is, add 7.63 g of ODPA, 1.50 g of diaminotoluene, 0.45 g of oxalic acid, 1.6 g of pyridine, 100 g of NMP, and 40 g of toluene, and then add at 180 ° C, 165 The reaction was performed at r pm for 60 minutes. After cooling to room temperature, 3.62 g of BPDA, 8.56 g of FDA, 100 g of NMP and 30 g of toluene were added, and the mixture was reacted at 180 ° C and 165 rpm for 6 hours and 45 minutes. The reaction was gelled on standing overnight.
- the reaction of Reference Example 2 was carried out in 100 g of the diaminosilane-containing 15 ⁇ 1 ⁇ 2 polyimide solution of Example 20 (polyimide content of 15 g). That is, ODPA 6.02 g diaminotoluene 1.22 g, phenol relolactone 0.4 g, pyridine 0.8 g, N MP 30 g N toluene 30 g was added and reacted at 180 ° C. and 170 rpm for 60 minutes. After air cooling for 60 minutes, 2.94 g of BPDA, 6.96 g of FDA, 35 g of NMP and 30 g of toluene were added, and the mixture was heated in a half bath for 10 minutes to obtain a homogeneous liquid. The reaction was performed at 1 SO ° C and 165 rpm for 4 hours and 25 minutes. Even when left overnight at room temperature, the solution was stable and uniform, producing a strong polyimide film.
- Example 20 was carried out in 100 g of the 15% polyimide solution of Reference Example 2 (containing 15 g of polyimide). That is, 1.21 g of BDP, 3.92 g of BPDA, 2.67 g of mD ADE, 0.4 g of valerolactone, 0.8 g of pyridine, 50 g of NMP and 30 g of toluene were added, and the mixture was added at 180 ° C and at 100 ° C. The mixture was heated and stirred at rpm for 10 minutes, and reacted at 180 ° C. and 170 rpm for 60 minutes.
- the characteristics of the polyimide in the mixing reaction and the polyimide in the mechanical mixing are different.
- the molecular weight distribution MwZMn of the mixed reaction polyimide increases.
- polyimide PCT test polyimide dried at 180 ° C for 2 hours is decomposed at 120 ° C for 24 hours.Power at 220 ° C and polyimide dried for 2 hours is stable at 120 ° C for 24 hours. there were.
- the improvement in polyimide properties is small.
- Polyimide by a cross-linking reaction in linear polyimide is excellent in film strength and the like.
- the mixed polyimide is also modified. In the reaction of linear polyimide in the cross-linking polyimide, the increase in molecular weight is small.
- a test pattern for a positive photomask was placed on the photosensitive coating film, and irradiated with 38 Omj using a 2 kw ultrahigh pressure mercury lamp irradiation device.
- Example 21 a mixed copolymerized polyimide solution obtained by using 3,5-diaminobenzoic acid instead of diaminotoluene was added with a solution such as: In addition, N-methylmorpholine was added as a neutralizing agent, and diluted with water to prepare an electrodeposition solution. A copper foil (positive electrode) and a stainless steel plate (negative electrode) were immersed in the electrodeposition solution, and a current was applied from a DC power source between the two electrodes to perform an electrodeposition experiment. .
- Example 3 1 After electrodeposition, the copper foil is washed with an aqueous solution of N-methylpyrrolidone, then fixed with an aqueous solution, dried in an infrared hot air drying oven at 90 ° C for 10 minutes, and then heated and dried at 200 ° C for 30 minutes to obtain a polyimide electrode. A film was obtained.
- Example 3 1 An aqueous solution of N-methylpyrrolidone, then fixed with an aqueous solution, dried in an infrared hot air drying oven at 90 ° C for 10 minutes, and then heated and dried at 200 ° C for 30 minutes to obtain a polyimide electrode. A film was obtained.
- Example 3 1 Example 3 1
- the photoacid generator naphthoquinonediazide was mixed into the above electrodeposited polyimide solution, and an electrodeposition solution was prepared in the same manner as above. After a polyimide film was deposited on a copper foil by an electrodeposition experiment, it was washed with water and dried in an infrared hot air drying oven for 9 °° / ⁇ 0 minutes. A mask was put on the film, irradiated with light from a high-pressure Hg-Xe lamp, and developed with a developing solution containing aminoethanol to form a positive image.
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Materials For Photolithography (AREA)
- Paints Or Removers (AREA)
- Formation Of Insulating Films (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
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- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
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Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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AT04723799T ATE496079T1 (de) | 2003-03-28 | 2004-03-26 | Vernetztes polyamid, dieses enthaltende zusammensetzung und herstellungsverfahren dafür |
DE200460031098 DE602004031098D1 (de) | 2003-03-28 | 2004-03-26 | Vernetztes polyamid, dieses enthaltende zusammensetzung und herstellungsverfahren dafür |
JP2005504206A JP4646804B2 (ja) | 2003-03-28 | 2004-03-26 | 架橋ポリイミド、それを含む組成物及びその製造方法 |
EP20040723799 EP1614704B1 (en) | 2003-03-28 | 2004-03-26 | Crosslinked polyimide, composition comprising the same and method for producing the same |
US10/550,887 US20070106056A1 (en) | 2003-03-28 | 2004-03-26 | Crosslinked polyimide, composition comprising the same and method for producing the same |
US12/960,865 US20110136061A1 (en) | 2003-03-28 | 2010-12-06 | Crosslinked polyimide, composition comprising the same and process for producing the same |
US13/856,258 US20130224653A1 (en) | 2003-03-28 | 2013-04-03 | Crosslinked polyimide, composition comprising the same and method for producing the same |
Applications Claiming Priority (6)
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JP2003090546 | 2003-03-28 | ||
JP2003-090546 | 2003-03-28 | ||
JP2003112425 | 2003-04-17 | ||
JP2003-112425 | 2003-04-17 | ||
JP2003412832 | 2003-12-11 | ||
JP2003-412832 | 2003-12-11 |
Related Child Applications (1)
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US12/960,865 Division US20110136061A1 (en) | 2003-03-28 | 2010-12-06 | Crosslinked polyimide, composition comprising the same and process for producing the same |
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WO2004087793A1 true WO2004087793A1 (ja) | 2004-10-14 |
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PCT/JP2004/004305 WO2004087793A1 (ja) | 2003-03-28 | 2004-03-26 | 架橋ポリイミド、それを含む組成物及びその製造方法 |
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US (3) | US20070106056A1 (ja) |
EP (1) | EP1614704B1 (ja) |
JP (2) | JP4646804B2 (ja) |
AT (1) | ATE496079T1 (ja) |
DE (1) | DE602004031098D1 (ja) |
WO (1) | WO2004087793A1 (ja) |
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WO2008114797A1 (ja) * | 2007-03-19 | 2008-09-25 | Ibiden Co., Ltd. | ポジ型感光性ポリイミド前駆体組成物 |
WO2008155811A1 (ja) * | 2007-06-18 | 2008-12-24 | Solpit Industries, Ltd. | 6,6-ポリイミド共重合体及びその製造方法 |
JP2009258433A (ja) * | 2008-04-17 | 2009-11-05 | Hitachi Chemical Dupont Microsystems Ltd | ポジ型感光性樹脂組成物、パターン硬化膜の製造方法及び電子部品 |
WO2010111755A2 (en) | 2009-04-01 | 2010-10-07 | Katholieke Universiteit Leuven - K.U.Leuven R & D | Improved method for making cross-linked polyimide membranes |
WO2011049105A1 (ja) * | 2009-10-23 | 2011-04-28 | 東洋紡績株式会社 | ポリイミド前駆体及びポリイミド前駆体溶液 |
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- 2004-03-26 AT AT04723799T patent/ATE496079T1/de not_active IP Right Cessation
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- 2004-03-26 EP EP20040723799 patent/EP1614704B1/en not_active Expired - Lifetime
- 2004-03-26 WO PCT/JP2004/004305 patent/WO2004087793A1/ja active Application Filing
- 2004-03-26 DE DE200460031098 patent/DE602004031098D1/de not_active Expired - Lifetime
- 2004-03-26 US US10/550,887 patent/US20070106056A1/en not_active Abandoned
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Cited By (16)
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US7210817B2 (en) * | 2004-04-27 | 2007-05-01 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | Method, system and device for delivering phototherapy to a patient |
JPWO2006025327A1 (ja) * | 2004-08-30 | 2008-05-08 | 国立大学法人 名古屋工業大学 | 多分岐ポリイミド系ハイブリッド材料 |
WO2008114797A1 (ja) * | 2007-03-19 | 2008-09-25 | Ibiden Co., Ltd. | ポジ型感光性ポリイミド前駆体組成物 |
JP5188495B2 (ja) * | 2007-03-19 | 2013-04-24 | イビデン株式会社 | ポジ型感光性ポリイミド前駆体組成物 |
EP2481475A1 (en) | 2007-05-14 | 2012-08-01 | Evonik Fibres GmbH | Cross-linked polyimide membranes |
WO2008155811A1 (ja) * | 2007-06-18 | 2008-12-24 | Solpit Industries, Ltd. | 6,6-ポリイミド共重合体及びその製造方法 |
JP5411696B2 (ja) * | 2007-06-18 | 2014-02-12 | ソルピー工業株式会社 | 6,6−ポリイミド共重合体及びその製造方法 |
US8349971B2 (en) | 2007-06-18 | 2013-01-08 | Solpit Industries, Ltd. | 6,6-polyimide copolymers and processes for preparing them |
JP2009258433A (ja) * | 2008-04-17 | 2009-11-05 | Hitachi Chemical Dupont Microsystems Ltd | ポジ型感光性樹脂組成物、パターン硬化膜の製造方法及び電子部品 |
WO2010111755A2 (en) | 2009-04-01 | 2010-10-07 | Katholieke Universiteit Leuven - K.U.Leuven R & D | Improved method for making cross-linked polyimide membranes |
WO2011049105A1 (ja) * | 2009-10-23 | 2011-04-28 | 東洋紡績株式会社 | ポリイミド前駆体及びポリイミド前駆体溶液 |
JP2011114266A (ja) * | 2009-11-30 | 2011-06-09 | Nikon Corp | 固体撮像装置及び固体撮像装置用パッケージ |
KR20110093177A (ko) * | 2010-02-11 | 2011-08-18 | 삼성전자주식회사 | 고분자 및 이를 포함하는 조성물과 필름 |
KR101660315B1 (ko) | 2010-02-11 | 2016-09-28 | 삼성전자 주식회사 | 고분자 및 이를 포함하는 조성물과 필름 |
JP2016172828A (ja) * | 2015-03-17 | 2016-09-29 | 株式会社日本触媒 | オキソカーボン系化合物を含む硬化物の製造方法 |
CN106479177A (zh) * | 2016-11-04 | 2017-03-08 | 东华大学 | 一种bpada型bdathq支化聚酰亚胺树脂薄膜及其制备方法 |
Also Published As
Publication number | Publication date |
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US20130224653A1 (en) | 2013-08-29 |
JP4646804B2 (ja) | 2011-03-09 |
JP5439268B2 (ja) | 2014-03-12 |
JPWO2004087793A1 (ja) | 2006-06-29 |
EP1614704B1 (en) | 2011-01-19 |
US20110136061A1 (en) | 2011-06-09 |
EP1614704A1 (en) | 2006-01-11 |
US20070106056A1 (en) | 2007-05-10 |
DE602004031098D1 (de) | 2011-03-03 |
ATE496079T1 (de) | 2011-02-15 |
EP1614704A4 (en) | 2007-10-03 |
JP2010248515A (ja) | 2010-11-04 |
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