CIRCUIT CONNECTION MATERIAL, AND CIRCUIT CONNECTION STRUCTURE USING THE SAME

• Main Authors: KUDO SUNAO, IZAWA HIROYUKI, KOBAYASHI KOJI, YOKOTA KOICHI, FUJITA SACHIKO, KATOGI SHIGEKI, NAMATAME YUTAKA, SHIBATA O
• Format: Patent
• Language: English
• Published: 07.02.2013
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; CURRENT COLLECTORS; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LINE CONNECTORS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

PROBLEM TO BE SOLVED: To provide a circuit connection material exhibiting high adhesive strength, and capable of sufficiently suppressing the generation of peeling bubbles at an interface between a circuit member and the circuit connection material in the case of a connected body is left in a high-temperature high humidity environment.SOLUTION: The circuit connection material contains (a) a thermoplastic resin, (b) a radical polymerizable compound, and (c) a radical polymerization initiator, wherein (b) the radical polymerizable compound is represented by formula (1), and satisfies the condition of the following expression (I): 10≤S2/S1≤14, wherein S1 is an integral value of a spectrum measured in the chemical shift value of 2.75 to 3.10 ppm inHNMR with tetramethylsilane as an internal standard; and S2 is an integral value thereof in 3.90 to 4.25 ppm. In the formula (1), Ris a hydrogen atom or a methyl group; j is an integer of 1 to 3; k is an integer of 2 to 7; m is an integer of 4 to 8; and n is an integer of 5 to 7.