Abstract:
PROBLEM TO BE SOLVED: To achieve good adhesiveness of a metal film and insulation layer even in a via hole. SOLUTION: The method for manufacturing a substrate with a metal film includes preparation of a first insulation layer 31, formation of a first conductive circuit 21 on the first surface of the first insulation layer 31, formation of a second insulation layer 32 on the first surface of the first insulation layer 31 and on the first conductive circuit 21, formation of a through-hole (a via hole 41) tapered from the first surface toward the first conductive circuit 21 in the second insulation layer 32, formation of a composition containing a polymerization initiator and a polymerizable compound on an inner wall of the through hole, formation of a graft polymer 411 on the inner wall of the through-hole by irradiating energy on the composition, application of a plating catalyst 412 on the graft polymer 411, and formation of an electroless-plated film 413 on the inner wall of the through hole. The first surface of the first insulation layer 31 faces to the second surface of the second insulation layer 32. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
A multilayer structure comprising a conductor layer, an adhesive layer, and a polymer film layer interposed between the conductor layer and the adhesive layer. The multilayer structure can be used to provide a multilayer wiring board having excellent electrical properties and an excellent balance of physical properties, high heat resistance, a narrow pitch wiring pattern, a small-diameter via, uniform insulating layer thickness, an appropriately low coefficient of linear expansion, and stable adhesiveness between a metal and the polymer film. The polymer film layer may contain at least one repeating unit represented by formula (1) in the molecule. The present invention also provides a multilayer wiring board obtained from the multilayer structure.
Abstract:
PROBLEM TO BE SOLVED: To provide a good wet-out and wet-through of a matrix material, suppressing wear and break of glass fibers, compatible with wide range of several matrix materials and giving good hydrolytic stability. SOLUTION: Provided is the fiber strand comprising at least one fiber at least partially coated with a composition formed from at least one rosin, at least one cationic lubricant, at least one film forming material, at least one organosilane coupling agent, and at least one dispersion of polymeric particles. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
There are provided a resin composition comprising a crosslinking component with a weight average molecular weight of 1,000 or less having a, plurality of styrene groups and represented by the following formula: wherein R is a hydrocarbon skeleton, each of R 1 s is a hydrogen atom or a hydrocarbon group, each of R 2 , R 3 and R 4 is a hydrogen atom or an alkyl group, m is an integer of 1 to 4, and n is an integer of 2 or more, at least one high-molecular weight compound, an inorganic filler, and at least one treating agent for said inorganic filler; its cured product; and a prepreg, a laminate sheet having a conductor layer, and a multilayer printed wiring board obtained by processing the conductor layer of the laminate sheet into wiring.