Patent ID: 8552558

Claim:
A semiconductor device comprising: a semiconductor layer; an insulating layer over the semiconductor layer; a sintered electrode formed on the side of the insulating layer opposite to the semiconductor layer, the sintered electrode comprising silver, SiO 2 , Bi 2 O 3 , PbF 2 , penetrating the insulating layer; wherein the sintered electrode is formed from a thick film paste comprising: a) electrically conductive silver b) a glass frit composition comprising 4-26 wt % SiO 2 , 6-52 wt % Bi 2 O 3 and 5-29 wt % PbF 2 , based on wt % of the total glass frit composition; dispersed in c) an organic vehicle; wherein the thick film paste penetrates the insulating layer upon sintering.