AROMATIC POLYIMIDE FILM AND COPPER FOIL-LAMINATED FILM
PROBLEM TO BE SOLVED: To obtain an aromatic polyimide film to be used as a support substrate in producing e.g. electronic circuits, high in travel stability during processing with good registration. SOLUTION: This tape-like aromatic polyimide film consists of an aromatic polyimide composed essential...
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| creator | KONO TAKASHI OTANI AKINORI HOSOMA TOSHINORI INOUE HIROSHI |
| description | PROBLEM TO BE SOLVED: To obtain an aromatic polyimide film to be used as a support substrate in producing e.g. electronic circuits, high in travel stability during processing with good registration. SOLUTION: This tape-like aromatic polyimide film consists of an aromatic polyimide composed essentially of biphenyltetracarboxylic acid component and p-phenylenediamine component, having the following characteristics: thickness: 50-125μm, tensile strength: >=30kg/mm , tensile modulus: >=500kg/mm , linear expansion coefficient: |
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SOLUTION: This tape-like aromatic polyimide film consists of an aromatic polyimide composed essentially of biphenyltetracarboxylic acid component and p-phenylenediamine component, having the following characteristics: thickness: 50-125μm, tensile strength: >=30kg/mm , tensile modulus: >=500kg/mm , linear expansion coefficient: <=2.5×10<-5> cm/cm/ deg.C, heat shrinkage: <=0.05%, curl degree defined by the horizontal distance between the center and edge of a circular disc-shaped film when this film as the aforementioned disc-shaped film 86mm in diameter is disposed perpendicularly to horizontal plane: <=3mm, and the maximum gradient of the thickness in the cross direction: <=3μm per 10mm.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY COMPOSITIONS BASED THEREON ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PRINTED CIRCUITS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP |
| title | AROMATIC POLYIMIDE FILM AND COPPER FOIL-LAMINATED FILM |
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