Patent ID: 6472609
Filing Date: 2002-10-29
Classification: H01L,H05K,Y10T

Abstract:
A component board including a printed-wiring substrate having a substantially plate-like shape, a main face and a back face, said printed-wiring substrate comprising:main-face-side connection terminals solder-bonded to connection terminals of an electronic component which is mounted on the main face; and back-face-side connection terminals connected, through mechanical contact, to connection terminals of another substrate which is connected to the printed-wiring substrate on the back-face side thereof, wherein the surfaces of the main-face-side connection terminals are coated with a main-face-side Au plating layer; and the surfaces of the back-face-side connection terminals are coated with a back-face-side Au plating layer which is thicker than the main-face-side Au plating layer.