Direct writing of conductive patterns

Details Direct writing of conductive patterns Direct writing of conductive patterns

1985-12-31

1987-09-01

Albritton, C. L.

Electric heating

Metal heating

By arc

174126C, 219121L, B23K 2600

Patent

active

046910913

ABSTRACT:
Electrically conductive paths are produced on a polymeric substrate by laser writing, i.e., by tracing desired paths on the substrate by a laser beam. The resulting paths comprise electrically conductive carbon as produced by thermal decomposition of substrate surface material; the paths can serve; e.g., as electrical interconnections akin to printed circuitry on a wiring board. Optionally, the conductivity of paths can be enhanced by electroplating a suitable conductor metal or alloy onto the paths.

REFERENCES:
patent: 3597579 (1971-08-01), Lumley
patent: 3860784 (1975-01-01), Brown et al.
patent: 4159414 (1979-06-01), Suh et al.
patent: 4286250 (1981-08-01), Sacchetti
patent: 4584456 (1986-04-01), Oodaira et al.
Handbook of Printed Circuit Manufacturing, Van Nostrand Reinhold Co., 1985, by R. H. Clark.

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