Electrical resistor and method of production

Details Electrical resistor and method of production Electrical resistor and method of production

1975-06-30

1977-12-27

Truhe, J. V.

Electric heating

Metal heating

By arc

219121L, B23K 900

Patent

active

040656560

ABSTRACT:
A laser beam is used to spiral, or otherwise remove a portion of the resistance material from, a resistance film on a glass substrate. The glass has a radiation absorber incorporated in its composition to minimize transmission of the laser beam through the glass.

REFERENCES:
patent: RE27772 (1973-10-01), Hanfmann
patent: 3293587 (1966-12-01), Robinson
patent: 3530573 (1970-09-01), Helgeland
patent: 3535778 (1970-10-01), Falanga et al.
patent: 3596045 (1971-07-01), Steigerwald et al.
patent: 3665483 (1972-05-01), Becker et al.
patent: 3827142 (1974-08-01), Bennett et al.
patent: 3916144 (1975-10-01), Schuermann

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