Fishing – trapping – and vermin destroying
Patent
1990-11-13
1992-03-24
Kunemund, Robert
Fishing, trapping, and vermin destroying
437939, 437945, 437949, 437963, 156DIG73, H01L 21324
Patent
active
050988670
ABSTRACT:
A compound semiconductor wafer wherein arsenide deposit is included with uniform size and distribution in such a manner that a compound reagent of gallium and polycrystal gallium arsenide is melted at 600.degree..about.700.degree. C. for 1.about.5 hours and such a reagent is contacted with a gallium arsenide wafer at above 900.degree. C. for 2.about.5 hours so arsenide to make the unevenly distributed arsenide deposit uniform and maintain such an arsenide deposit at 600.degree..about.700.degree. C. for 5.about.30 hours, thereby removing thermal stress therefrom.
REFERENCES:
patent: 3649193 (1972-03-01), Deyris
patent: 3783825 (1974-01-01), Kobayasi et al.
patent: 4312681 (1982-01-01), Rupprecht et al.
patent: 4317689 (1982-03-01), Bowers et al.
patent: 4820651 (1989-04-01), Prince et al.
Kunemund Robert
Samsung Electronics Co,. Ltd.
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