Fishing – trapping – and vermin destroying
Patent
1986-11-28
1988-06-21
Roy, Upendra
Fishing, trapping, and vermin destroying
148DIG4, 437 22, 437942, 437939, H01L 21265
Patent
active
047525924
ABSTRACT:
An annealing method for a GaAs wafer which uses incoherent light, e.g., infrared light generated from tungsten lamp, halogen lamp, etc. and a GaAs guard ring which surrounds the GaAs wafer. The thickness of the guard ring is 1.5 times more than that of the GaAs wafer, the internal diameter of the guard ring is less than diameter of GaAs wafer plus 3 mm and the width of the guard ring is less than 10 mm.
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Cummings et al., Jour. Appl. Phys., 60, (1986), 163.
Hiramoto et al., Jap. Jour. Appl. Phys., 24, (1985), L-193.
Onuma Takeshi
Tamura Akiyoshi
Matsushita Electric - Industrial Co., Ltd.
Roy Upendra
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