Intermediate product for use in the production of thick-film cir

Details Intermediate product for use in the production of thick-film cir Intermediate product for use in the production of thick-film cir

1992-02-27

1993-04-27

Lateef, Marvin M.

Electrical resistors

With base extending along resistance element

Resistance element coated on base

338195, 338203, H01C 1012

Patent

active

052066240

ABSTRACT:
An intermediate product is provided and includes a substrate having at least one thick-film circuit formed thereon. An outer surface of a first portion of the thick-film circuit is coated with a readily removable protective material such as ethyl cellulose to protect the first portion from hot-slag substrate material generated during a laser scribing operation. The substrate also includes at least one uncoated portion which can be laser scribed for separation of the thick-film circuit from the remainder of the substrate. After laster scribing, the protective material is removed to permit visual inspection of the thick-film circuit.

REFERENCES:
patent: 4467312 (1984-08-01), Komatsu

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