Method for the formation of narrow, metal-free strips in a metal

Details Method for the formation of narrow, metal-free strips in a metal Method for the formation of narrow, metal-free strips in a metal

1986-04-09

1987-06-02

Albritton, C. L.

Electric heating

Metal heating

By arc

219121LT, B23K 2600

Patent

active

046706399

ABSTRACT:
A method for forming narrow metal-free strips in a metal layer on a plastic sheet from which to manufacture capacitors provides moving the sheet relative to a plurality of pulsed laser beams arranged parallel to one another in a single plane parallel to the direction of translational motion of the sheet to successively generate metal-free areas which are overlapped to form a narrow, completely metal-free strip.

REFERENCES:
patent: 3786224 (1974-01-01), Heywang et al.
patent: 3895207 (1975-07-01), Heywang et al.
patent: 4081653 (1978-03-01), Koo et al.
patent: 4322601 (1982-03-01), Serlin
patent: 4462062 (1984-07-01), Rayburn
patent: 4568815 (1986-02-01), Kimberg
patent: 4598039 (1986-07-01), Fischer et al.
G. Hurtig III et al., "An Overview of Laser Functional Trimming Techniques", May 13-15, 1974, 24th Electronic Components Conf., Washington, D.C.

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