Patent ID: 9245663
Filing Date: 2016-01-26
CPC Classification: H01B,H01L,Y02E

Claim Text:
1. A thick film paste composition comprising: (a) 35-45 wt % of a conductive phase consisting of spherical silver particles with d (b) 0.5-6 wt % Pb-free bismuth-copper-boron-zinc-based-oxide glass frit; and (c) organic medium; wherein said silver and said glass frit are dispersed in said organic medium and wherein the wt % are based on the total weight of said paste composition, said Pb-free bismuth-copper-boron-zinc-based-oxide glass frit comprising 70-80 wt % Bi 2 O 3 , 5-11 wt % CuO, 3-8 wt % B 2 O 3 and 3-8 wt % ZnO, wherein the oxide wt % are based on the total weight of said Pb-free bismuth-copper-boron-zinc-based-oxide glass frit.