Abstract:
A multilayer printed wiring board is equipped with a core board 20, a build-up layer 30 formed on the core board 20 so as to have a conductor pattern 32 on the upper surface thereof, a low-elasticity layer 40 formed on the build-up layer 30, lands 52 that are provided on the upper surface of the low-elasticity layer 40 and connected to an IC chip 70 via solder bumps 66, and conductor posts 50 that penetrate through the low-elasticity layer 40 and electrically connect the lands 52 to the conductor pattern 32. The low-elasticity layer 40 is formed of resin composition containing epoxy resin, phenol resin, cross-linked rubber particles and a hardening catalyst.
Abstract:
PROBLEM TO BE SOLVED: To provide a resin composition for manufacturing a biochip, forming a resin composition layer excellent in the diffusion controllability of an acid produced by exposure, and also to provide a method for manufacturing the biochip using the same. SOLUTION: The resin composition for manufacturing the biochip consists of: (A) a polymer having a nitrogen-containing group; (B) a compound being a component having action producing the acid by exposure and represented by [4-(2-tert-butoxy-2-oxoethoxy)naphthalene-1-yl]-dimethylsulfonium-perfluoromethane or [4-(2-tert-butoxy-2-oxoethoxy)anthracene-1-yl]-dimethylsulfonium-perfluoromethane; and (C) a solvent. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a photosensitive resin composition for forming an electrical insulating film that can give a cured film excellent in resolution, electrical insulation, cohesiveness, adhesion, etc. SOLUTION: The photosensitive resin composition for forming an insulating film comprises (A) a resin containing a structural unit having a phenolic hydroxyl group, (B) at least one kind of the compounds selected from the compounds represented by formula (b1) and (b2), (C) a photosensitive acid generator, and (D) a solvent, wherein, (b1) is (R) n Si(OR 1 ) 4-n and (b2) is (R 2 )[R 3 Si(OR 1 ) 3 ] m , and R represents a hydrogen atom or a hydrocarbon group that may have a substituent group such as an epoxy and oxetanyl, R 1 represents a 1-5C alkyl group, n is an integer of 0-2, R 2 represents a m-valent group selected from an alicyclic hydrocarbon group, an aromatic hydrocarbon group, and a heterocyclic group, R 3 represents a methylene group or a 2-5C alkylene group, and m is an integer of 1-10. COPYRIGHT: (C)2009,JPO&INPIT