Method and apparatus for working print board by laser

Details Method and apparatus for working print board by laser Method and apparatus for working print board by laser

1990-06-21

1991-12-17

Albritton, C. L.

Electric heating

Metal heating

By arc

21912171, 21912176, B23K 2600

Patent

active

050736876

ABSTRACT:
A laser output is converted into a pulse output and the pulse output is made variable in accordance with each portion of a copper foil portion and a resin portion of the surface of a print board and a copper foil portion of the back surface.

REFERENCES:
patent: 3974016 (1976-08-01), Bondybey et al.
patent: 4839497 (1989-06-01), Sankar et al.

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