Patent ID: 7626124
Filing Date: 2009-12-01
Classification: H01L,H05K,Y10T

Abstract:
1. A wiring board comprising: an insulating plate; a metal circuit pattern disposed on the insulating plate; a built-up circuit pattern having a predetermined shape and comprising a cold sprayed metal material, said built-up circuit pattern being directly deposited on the metal circuit pattern to have the predetermined shape without further processing, said built-up circuit pattern being thicker than the metal circuit pattern, and a heat-generating semiconductor component mounted on the built-up circuit pattern, wherein the built-up circuit pattern is provided at least on the metal circuit pattern in a region where the semiconductor component is to be mounted, wherein the built-up circuit pattern and the metal circuit pattern have a total thickness equal to a distance from an edge of the mounted semiconductor component to an edge of the built-up circuit pattern.