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:
Jul. 12, 2005
Filed:
Nov. 05, 2003
Applicant:
Hideki Fukano, Shinjuku-ku, JP;
Inventor:
Hideki Fukano, Shinjuku-ku, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L031/00 ; H01L031/0232 ;
U.S. Cl.
CPC ...
Abstract
A semiconductor photodetection device includes a light incident facet for receiving light from an optical waveguide. Light received at the light incident facet is refracted through a photo-absorption layer to register photonic events. A material may be introduced between the optical waveguide and the light incident facet to improve responsiveness of the device. The light incident facet may be at an angle to the direction of the light emitted from the optical waveguide to cause the incident light to be refracted through several layers of the semiconductor photodetection device.