Fishing – trapping – and vermin destroying
Patent
1990-03-08
1991-09-10
Chaudhuri, Olik
Fishing, trapping, and vermin destroying
148DIG95, 156644, 437 67, 437133, 437 48, 437226, 437974, H01L 2120, H01L 21265
Patent
active
050473646
ABSTRACT:
A multi-point light emission type semiconductor laser device including a plurality of light emission points which are produced on a p type or n type semiconductor layer monolithically and are capable of being driven independently includes electrically insulating or semi-insulating semiconductor regions provided at intermediate portions of light emission points in the p type or n type semiconductor layer. A separation groove is further produced up to reaching the insulating or semi-insulating regions from the side opposite to the semiconductor layer. Thus, respective light emission points are perfectly electrically separated each other by this separation groove and the region.
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Bunch William
Chaudhuri Olik
Mitsubishi Denki & Kabushiki Kaisha
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