Trimming process by a laser beam

Details Trimming process by a laser beam Trimming process by a laser beam

1989-01-04

1990-05-29

Albritton, C. L.

Electric heating

Metal heating

By arc

B23K 2600

Patent

active

049288385

ABSTRACT:
A trimming process by a laser beam is disclosed. The trimming process comprises two steps. In a first step, a laser shield layer is formed over an untrimmed region of a trimmed material adjacent to a trimmed region. The laser shield layer has a higher heat conductivity than the trimmed material and a large reflectivity for laser beam. In a second step, the trimmed material is cut off. To cut off, a laser beam is applied onto the upper surface of the trimmed region of the trimmed material to vaporize the trimmed material in the trimmed region.

REFERENCES:
patent: 4272775 (1981-06-01), Compton et al.
patent: 4374314 (1983-02-01), Deacutis
patent: 4644130 (1987-02-01), Bachmann

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