Near-surface thermal gradient enhancement with opaque coatings

Details Near-surface thermal gradient enhancement with opaque coatings Near-surface thermal gradient enhancement with opaque coatings

1978-12-07

1979-10-09

Ozaki, G.

Metal treatment

Compositions

Heat treating

148177, 148187, H01L 21225

Patent

active

041704916

ABSTRACT:
A thin opaque layer of material is deposited on one or both major opposed surfaces of a semiconductor wafer to enhance establishing a thermal gradient near the major surface or surfaces to produce straight, fine molten wires (<0.002") of a metal by migration of a melt of the metal through a solid, or matrix, both of semiconductor material by thermal gradient zone melting processing along a thermal gradient established and maintained aligned substantially parallel with a preferred crystal axis of migration by thermal gradient zone melting processing.

REFERENCES:
patent: 2739088 (1956-03-01), Pfann
patent: 2813048 (1957-11-01), Pfann
patent: 3897277 (1975-07-01), Blumenfeld
patent: 3898106 (1975-08-01), Cline et al.
patent: 3899362 (1975-08-01), Cline et al.
patent: 3901736 (1975-08-01), Anthony et al.
patent: 3902925 (1975-09-01), Anthony et al.
patent: 3904442 (1975-09-01), Anthony et al.
patent: 4006040 (1977-02-01), Cline et al.
patent: 4091257 (1978-05-01), Anthony et al.

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