Process for thermal gradient zone melting utilizing a guard ring

Details Process for thermal gradient zone melting utilizing a guard ring Process for thermal gradient zone melting utilizing a guard ring

1976-08-30

1977-07-12

Ozaki, G.

Metal treatment

Compositions

Heat treating

148171, 148172, 148186, 148177, 148179, 252 623GA, 252 623E, H01L 2124

Patent

active

040351998

ABSTRACT:
The practice of thermal gradient zone melting in processing a body of semiconductor material is enhanced by providing a radiation coating on selected surface areas of the body.

REFERENCES:
patent: 2813048 (1957-11-01), Pfann
patent: 3895967 (1975-07-01), Anthony et al.
patent: 3956023 (1976-05-01), Cline et al.
patent: 4001047 (1976-10-01), Boah

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