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. 11, 2014
Filed:
Oct. 03, 2012
Applicant:
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Inventors:
Taek Kim, Seongnam-si, KR;
Bok-ki Min, Suwon-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0312 (2006.01);
U.S. Cl.
CPC ...
Abstract
A photodetector includes a waveguide on a substrate, and a photodetection portion connected to the waveguide. The photodetection portion includes a first semiconductor layer, graphene on the semiconductor layer, and a second semiconductor layer on the graphene. A first electrode and a second electrode separated from the first ridge portion and electrically connected to the graphene.