Patent ID: 7825514
Filing Date: 2010-11-02
Classification: H01L

Abstract:
1. A substrate for a semiconductor device, comprising: a base plate made of a metal; a plurality of external terminal portions, respectively arranged in a plane on the base plate and having external terminal faces respectively facing the base plate; a plurality of internal terminal portions, respectively arranged in the plane on the base plate and having internal terminal faces respectively facing an opposite side to the base plate; and wiring portions, respectively connecting the internal terminal portions with the external terminal portions in the plane on the base plate, wherein each portion of the internal terminal portions, external terminal portions and wiring portions, in contact with the base plate, is made of a metal selected from the group consisting of Ni, Pd, Ag and Au, and wherein at least a part of the external terminal portions are located on the base plate in a predetermined arrangement area in which a semiconductor element is arranged.