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. 23, 2001
Filed:
Feb. 18, 1999
Applicant:
Inventor:
Mitsuhiro Sugiyama, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 3/10232 ; H01L 3/106 ; H01L 3/1028 ;
U.S. Cl.
CPC ...
H01L 3/10232 ; H01L 3/106 ; H01L 3/1028 ;
Abstract
A semiconductor photo-detector, which has a high quantum efficiency due to high coupling with an incident beam and operates at higher frequency due to a reduced area of PN junction. In a semiconductor photo-detector of the present invention, reflection layers are deposited on both of the parallel surfaces of a square-shaped wave-guide, while light absorption layers are deposited on at least another pair of parallel surfaces which is one of the parallel pairs of remaining surfaces.
Sugiyama, Mitsuhiro. (2001). Semiconductor photo-detector with square-shaped optical wave-guide (U.S. Patent No. 6307242). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6307242
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile