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:
Mar. 16, 1999
Filed:
Mar. 26, 1997
Applicant:
Inventors:
Naoki Yamamoto, Kawasaki, JP;
Masaaki Norimatsu, Kawasaki, JP;
Goji Nakagawa, Kawasaki, JP;
Seimi Sasaki, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G01J / ;
U.S. Cl.
CPC ...
385 14 ; 385 49 ; 385 40 ; 385 88 ; 385130 ; 385131 ; 25022715 ;
Abstract
A photoreception device includes an oblique surface on a semiconductor substrate for causing a deflection of an optical beam incident thereto and a photodetection region provided on a first side of the semiconductor substrate for detecting the deflected optical beam, the photodetection region including a first electrode, wherein the photoreception device further includes a second electrode for biasing the photodetection region an a second, opposite side of the semiconductor substrate.