Fishing – trapping – and vermin destroying
Patent
1992-12-30
1993-11-09
Chaudhuri, Olik
Fishing, trapping, and vermin destroying
437107, 437133, 148DIG95, H01L 2120
Patent
active
052602311
ABSTRACT:
A semiconductor laser device is disclosed which emits laser light from a facet. The semiconductor laser device comprises a multi-layered structure formed on a semiconductor substrate, the multi-layered structure having an AlGaAs active layer for laser oscillation, and a protective film formed on the facet, wherein a film containing sulfur is provided between the facet and the protective film.
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Sandroff et al., "Dramatic Enhancement in the Gain of GaAs/AlGaAs Heterostructure Bipolar Transistor by Surface Chemical Passivation" Appl. Phys. Lett. (1987) 51(1):33-35.
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Kawanishi et al., "Effects of (NH.sub.4).sub.2 S Treatments on the Characteristics of AlGaAs Laser Diodes" Extended Abstracts of the 21st Conference on Solid State Devices and Materials Tokyo, (1989) pp. 337-340.
Hayashi Hiroshi
Kaneiwa Shinji
Kawanishi Hidenori
Kondo Masaki
Matsumoto Mitsuhiro
Chaudhuri Olik
Paladugu Ramamohan Rao
Sharp Kabushiki Kaisha
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