发明申请
US20120073871A1 MULTI-LAYERED SUBSTRATE 审中-公开
多层基板

MULTI-LAYERED SUBSTRATE
摘要:
The present invention directs to double-sided multi-layered substrate a base, at least a through-hole passing through the base, patterned first and second metal layers formed on the two opposite surfaces of the base, and first and second plating layers. The first plating layer covers a sidewall of the through-hole and the bottom surface surrounding a bottom opening of the through hole. The second plating layer covers the first plating layer and the top surface surrounding a top opening of the through hole.
信息查询
0/0