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:
Apr. 12, 2011
Filed:
Jan. 17, 2008
Applicant:
Sawaki Watanabe, Tokyo, JP;
Inventor:
Sawaki Watanabe, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is light-receiving device () comprising semiconductor substrate (), a light-receiving layer arranged on semiconductor substrate (), and filter layer () arranged between semiconductor substrate () and the light-receiving layer to absorb light other than reception light. First mesa () serving as the light-receiving layer is surrounded by third mesa () for absorbing at least light other than reception light. Consequently, even when filter layer () is too thin to sufficiently absorb light other than reception light, third mesa () absorbs the light, thereby preventing the light from reaching first mesa ().