Method for creating blind holes in a laminated structure

Details Method for creating blind holes in a laminated structure Method for creating blind holes in a laminated structure

1985-05-17

1987-02-17

Albritton, C. L.

Electric heating

Metal heating

By arc

219121LW, B23K 2600

Patent

active

046441301

ABSTRACT:
A method for producing blind holes in a multilayered structure having a metal-synthetic-metal laminated structure characterized by forming an aperture in a metal layer of the laminated structure at the location for each of the blind holes and directing laser radiation of an excimer laser through the aperture to remove the underlying synthetic material with the removal operation being terminated by the oppositely positioned metal layer which is resistant to the laser beam.

REFERENCES:
patent: 4030190 (1977-06-01), Varker
patent: 4328410 (1982-05-01), Slivinsky et al.
patent: 4370175 (1983-01-01), Levatter
R. Srinvisan et al, "FAR-UV Photoetching of Organic Material", Laser Focus, May 1983, pp. 62-66.

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