Invention Grant
- Patent Title: Optical semiconductor device and a method of manufacturing the same
- Patent Title (中): 光半导体装置及其制造方法
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Application No.: US09401784Application Date: 1999-09-22
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Publication No.: US06238943B1Publication Date: 2001-05-29
- Inventor: Hirohiko Kobayashi , Mitsuru Ekawa , Nirou Okazaki , Shouichi Ogita , Haruhisa Soda , Haruhiko Tabuchi , Takuya Fujii
- Applicant: Hirohiko Kobayashi , Mitsuru Ekawa , Nirou Okazaki , Shouichi Ogita , Haruhisa Soda , Haruhiko Tabuchi , Takuya Fujii
- Priority: JP5-216006 19930831; JP6-18721 19940215; JP6-165145 19940718
- Main IPC: H01L2100
- IPC: H01L2100

Abstract:
An optical semiconductor device of the present invention is provided with a core layer having a quantum well layer in that film thickness gets thinner from a inner region to an end portion in an optical waveguide region.
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