Thick film circuit board

Details Thick film circuit board Thick film circuit board

1983-12-29

1986-04-08

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428446, 428698, 428901, 428428, 174 685, B32B 900, B32B 1900, B32B 300, B32B 700

Patent

active

045812799

ABSTRACT:
A thick film circuit board comprises at least parts of SiC substrate at which a thick film resistor is provided being coated with a glass layer having a good adhesion to the SiC substrate and the same or similar coefficient of thermal expansion as or to that of the SiC substrate, and no swelling, cracking and peeling appear on the thick film resistor and no electroconductive component is formed on laser-trimmed parts of the thick film resistor.

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patent: 4314852 (1982-02-01), Brennan et al.
patent: 4370421 (1983-01-01), Matsushita et al.
patent: 4424251 (1984-01-01), Sugishita et al.
patent: 4436829 (1984-03-01), Nowell

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