Semiconductor laser device and process for producing the same

Details Semiconductor laser device and process for producing the same Semiconductor laser device and process for producing the same

2005-03-22

2005-03-22

Leung, Quyen (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

Reexamination Certificate

active

06870870

ABSTRACT:
The present invention relates to a ridge-stripe semiconductor laser device and a process for producing the same. More specifically, the object of the present invention is to control the formation of cavities at the side of the ridge without adding any step, and to provide a ridge stripe semiconductor laser device with good properties by strictly controlling its ridge width and a process for producing the same. Thereby, it is possible to form a ridge whose sidewalls stand almost vertically.

REFERENCES:
patent: 5888844 (1999-03-01), Bestwick et al.
patent: 5970080 (1999-10-01), Hata
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patent: 6-268317 (1994-09-01), None
patent: 9-298343 (1997-11-01), None
patent: 9-331117 (1997-12-01), None
patent: 10-163560 (1998-06-01), None
patent: 11-26885 (1999-01-01), None

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