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. 04, 2011
Filed:
Mar. 04, 2009
Applicants:
Takaki Iwai, Osaka, JP;
Hironari Takehara, Kyoto, JP;
Hisatada Yasukawa, Kyoto, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical semiconductor device includes a semiconductor substrate; a light receiving element formed on the semiconductor substrate; a light absorbing element formed on the semiconductor substrate and located adjacent to the light receiving element; and a semiconductor element formed on the semiconductor substrate and used for signal processing. The light absorbing element includes a fifth semiconductor layer, and a light absorption region in the light receiving element has a different structure from a light absorption region in the light absorbing element.