Thin film circuit substrate

Details Thin film circuit substrate Thin film circuit substrate

1986-11-25

1988-02-09

Kittle, John E.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428409, 428432, 428901, 219216, 219543, 346 76PH, B32B 300, B32B 1500, H05B 100, G01D 1510

Patent

active

047241829

ABSTRACT:
Disclosed is a thin film circuit substrate which comprises an electrically insulating substrate, and at least one conductor layer and one protecting layer which are formed on the substrate, the insulating substrate having a surface roughness which is equal to or smaller than 0.1 .mu.Ra when measured as a center line average height. The thin film circuit substrate is suitable for use, for example, in a thermal head.

REFERENCES:
patent: 4340635 (1982-07-01), Langman et al.
patent: 4343986 (1982-08-01), Mitani et al.

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