Flexible circuit wiring board and method of producing the same

Details Flexible circuit wiring board and method of producing the same Flexible circuit wiring board and method of producing the same

1994-05-31

1995-08-29

Picard, Leo P.

Electricity: conductors and insulators

Conduits, cables or conductors

Preformed panel circuit arrangement

174250, 361773, H05K 102

Patent

active

054462452

ABSTRACT:
A flexible circuit wiring board having protruding, closely spaced leads, which are intended to be attached to a circuit device, is fabricated by forming a conductor pattern on a first surface of an insulating substrate, adhereing a protection layer to the conductor pattern and employing a laser to selectively etch away the substrate. The etching process leaves a reinforcing coating of the protective layer on the leads at least in the portions thereof which lie at the boundary of the area from which the substrate has been removed.

REFERENCES:
patent: 4357750 (1982-11-01), Ostman
patent: 4631820 (1986-12-01), Harada et al.

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