Patent ID: 7640660
Filing Date: 2010-01-05
Classification: H01L,H05K,Y10S,Y10T

Abstract:
1. A method for manufacturing a multilayer wiring board, comprising: annealing a conductive foil such that an elastic modulus of the conductive foil becomes 10 to 40 GPa; attaching the annealed conductive foil to a carbon fiber reinforced portion composed of a carbon fiber material and resin composition; forming the annealed conductive foil into a first wiring pattern; forming an insulating layer over the first wiring pattern to provide a first wiring portion including a laminated structure of the insulating layer and the first wiring pattern, the insulating layer containing a glass fiber material; and forming a second wiring portion on the first wiring portion, the second wiring portion including a laminated structure of an insulating layer and a second wiring pattern.