Impurity reduction technique for mercury cadmium telluride

Details Impurity reduction technique for mercury cadmium telluride Impurity reduction technique for mercury cadmium telluride

1983-12-23

1985-03-26

Weisstuch, Aaron

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

148 15, 156DIG66, 156DIG72, 156DIG82, H01L 21324, H01L 21385

Patent

active

045071608

ABSTRACT:
The disclosure relates to a method for reducing impurity concentration in mercury cadmium telluride alloys wherein impurities are attracted to a region saturated with second phase tellurium during annealing in a saturated mercury atmosphere where the second phase tellurium and the impurities attracted thereto can be removed by polishing, etching, grinding, or the like.

REFERENCES:
patent: 3954518 (1976-05-01), Schmit et al.
patent: 3963540 (1976-06-01), Camp, Jr. et al.
patent: 4116725 (1978-09-01), Shimizu
patent: 4318217 (1982-03-01), Jenner et al.
patent: 4435224 (1984-03-01), Durand

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