Patent ID: 7504349

Claim:
A conductive thick film paste comprising a solids portion comprising a glass component and a metal component, said glass component comprising: a. a first glass composition comprising in mole %, i. about 5 to about 35% ZnO, ii. about 5 to about 40% SiO 2 , and iii. about 2 to about 35% B 2 O 3 , b. a second glass composition comprising in mole %, i. about 20 to about 70% Bi 2 O 3 , ii. about 20 to about 50% SiO 2 , and iii. about 2 to about 30% B 2 O 3 , c. a third glass composition comprising in mole %, about 5 to about 80% Bi 2 O 3 , d. no lead or lead oxide, and e. no cadmium or cadmium oxide.