Patent ID: 9649730
Date: 2017-05-16
CPC Classifications: B23K,C09D,H01B,H05K

Claim:
1. A polyimide-based polymer thick film paste composition for forming a solderable polyimide-based polymer thick film conductor, the paste composition comprising: (a) 60-95 wt % of an electrically conductive metal powder; (b) 2-6 wt % of a polyimide polymer; (c) 0.10-0.35 wt % of an organosilicon compound and (d) an organic solvent, wherein the wt % are based on the total weight of the paste composition, and wherein the electrically conductive metal powder and the organosilicon compound are dispersed in the organic solvent, and the polyimide polymer is dissolved in the organic solvent and the ratio of the weight of the electrically conductive metal powder to the weight of the polyimide polymer is between 13 and 40.