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. 15, 2022
Filed:
Feb. 01, 2018
Kyoto Semiconductor Co., Ltd., Kyoto, JP;
Takatomo Isomura, Kyoto, JP;
Etsuji Omura, Kyoto, JP;
KYOTO SEMICONDUCTOR CO., LTD., Kyoto, JP;
Abstract
A semiconductor light receiving element of back-illuminated type comprises a light absorbing portion formed in the vicinity of the main surface of the semiconductor substrate transparent to the incident light, and a first convex lens portion larger than the light absorbing portion and having a radius of curvature Rformed on a back surface of the semiconductor substrate, a second convex lens portion smaller than the light absorbing portion and having a radius of curvature Rsmaller than the radius of curvature R; the second convex lens portion formed on the first convex lens portion and having a focal point between the second convex lens portion and the light absorbing portion; light incident on the second convex lens portion is diffused from the focal point toward the light absorbing portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile