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:
Feb. 14, 2023
Filed:
Jul. 01, 2021
Applicant:
Fujitsu Limited, Kawasaki, JP;
Inventor:
Kenjiro Hayashi, Hadano, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0352 (2006.01); H01L 31/18 (2006.01); H01L 31/028 (2006.01);
U.S. Cl.
CPC ...
H01L 31/03529 (2013.01); H01L 31/028 (2013.01); H01L 31/1804 (2013.01);
Abstract
An optical sensor includes a graphene layer, a first electrode and a second electrode that are connected to the graphene layer, and an enhancement layer. The enhancement layer is disposed below the graphene layer to enhance the intensity of an optical electric field by surface plasmon resonance. The first electrode and the second electrode are arranged parallel to a first direction. The intensity of the optical electric field enhanced by the enhancement layer is greater on a first electrode side than on a second electrode side with respect to a centerline in the first direction of the graphene layer.