PROTECTIVE-MEMBRANE-FORMING FILM

• Main Authors: TAKANO, KEN, SHINODA, TOMONORI, AZUMA, YUICHIRO
• Format: Patent
• Language: English; French; Japanese
• Published: 12.06.2014
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INKS; 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; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

This protective-membrane-forming film, which is used to form a protective membrane that protects a semiconductor chip, contains an acrylic polymer (A), a curable epoxy component (B), and a filler (C). Epoxy-group-containing monomers constitute no more than 8% of the total mass of the monomers constituting the acrylic polymer (A). The glass transition temperature of the acrylic polymer (A) is greater than or equal to −3°C, and at least one surface of the protective membrane obtained by curing this protective-membrane-forming film has a gloss value of at least 20 as measured in accordance with JIS Z 8741. La présente invention concerne un film de formation de membrane protectrice, qui est utilisé pour former une membrane protectrice qui protège une puce de semi-conducteur, contenant un polymère acrylique (A), un constituant époxy durcissable (B), et un élément de remplissage (C). Des monomères contenant un groupe époxy ne constituent pas plus de 8 % de la masse totale des monomères constituant le polymère acrylique (A). La température de transition vitreuse du polymère acrylique (A) est supérieure ou égale à −3°C, et au moins une surface de la membrane protectrice obtenue par durcissement de ce film de formation de membrane protectrice présente une valeur de brillance d'au moins 20 mesurée selon JIS Z 8741.