Patent ID: 8336202
Filing Date: 2012-12-25
Classification: H01L,H05K,Y10T

Abstract:
1. A method of manufacturing a wiring board comprising: forming a basic circuit pattern on an insulating plate, forming a metal layer on the basic circuit pattern by cold spraying metallic particle onto the basic circuit pattern to form a built-up circuit pattern on the basic circuit pattern, said built-up circuit pattern being directly deposited on the basic circuit pattern to have a predetermined shape without further processing and being thicker than the basic circuit pattern, and mounting a heat-generating semiconductor component on the built-up circuit pattern, wherein the built-up circuit pattern is provided at least on the basic circuit pattern in a region where the semiconductor component is mounted, and the built-up circuit pattern and the basic 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.