The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2000
Filed:
Jun. 26, 1998
Applicant:
Inventors:
Yousuke Yamamoto, Tokyo, JP;
Yoshikazu Tanaka, Tokyo, JP;
Seiichi Nagai, Tokyo, JP;
Mitsuo Ishii, Tokyo, JP;
Isao Oshima, Tokyo, JP;
Kazuyoshi Hasegawa, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
257 80 ; 257 81 ; 257 98 ; 257 99 ; 257432 ; 257433 ;
Abstract
An optical semiconductor device used for optical information processing, such as writing information into and reading information from an optical disk. The optical semiconductor device includes a Si substrate, a light emitting element, and a reflector for reflecting light emitted from the light emitting element in a direction perpendicular to the mounting surface of the Si substrate. The reflector has a reflecting surface inclined by 45.degree. from a bottom face and formed by etching a single crystal of Si.