Metal treatment – Compositions – Heat treating
Patent
1975-08-22
1977-07-05
Ozaki, G.
Metal treatment
Compositions
Heat treating
148187, H01L 2126
Patent
active
040337880
ABSTRACT:
Electrically isolated active device regions are fabricated in GaAs semi-insulating wafers by the implantation therein of sulphur ions. The implanted wafers are then coated with a passivating oxide and annealed at an elevated temperature of 800.degree. C or greater in order to achieve carrier mobilities in excess of 3000 cm.sup.2 /volt second.
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Sansbury et al., Radiation Effects, vol. 6, 1970, pp. 269-276, Science Publishers Ltd., Glasgow, Scotland.
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Zelevinskaya et al., Soviet Physics--Semiconductors, vol. 4, No. 2, 1970.
Itoh et al. "As and Cd Implantations into N-type GaAs," J. Appl. Phys., vol. 42, No. 12, Nov. 1971, pp. 5120-5124.
Hirsch Nathan
Hunsperger Robert G.
Bethurum William J.
Hughes Aircraft Company
MacAllister W. H.
Ozaki G.
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