Fishing – trapping – and vermin destroying
Patent
1994-09-28
1996-11-05
Kunemund, Robert
Fishing, trapping, and vermin destroying
437948, 148DIG143, H01L 2120
Patent
active
055717500
ABSTRACT:
A method for producing a semiconductor laser device includes the steps of: forming window layers on either one of a top surface of an internal structure or a reverse surface of a substrate and on light-emitting end facets of the internal structure; forming a reflection film on the light-emitting end facets; removing the window layer formed on either one of the top surface or the reverse surface by using an etchant which hardly etches the reflection film; and forming electrodes on the surface from which the window layer is removed by etching and on the other surface. Another method for producing a semiconductor laser device includes the steps of: forming window layers on light-emitting end facets of the bars; inserting the bars into an apparatus having openings for forming electrodes and a supporting portion for preventing a positional shift between the bars and the openings, and forming the electrodes on the top surfaces and the reverse surfaces of the bars; and cutting the bars into the chips.
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Sasaki, K., et al. "Realization of highly reliable high-power operation of single-stripe AlGaAs lasers by the formation of window grown facets," Japanese Journal of Applied Physics, Supplements. Extended Abstracts International Conference on Solid State Devices and Materials, Yokohama, Japan, Aug. 27, 1991.
Matsumoto Mitsuhiro
Ohbayashi Ken
Sasaki Kazuaki
Watanabe Masanori
Yamamoto Osumu
Kunemund Robert
Sharp Kabushiki Kaisha
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