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:
Dec. 05, 2023
Filed:
Mar. 27, 2020
Applicant:
Fujitsu Optical Components Limited, Kawasaki, JP;
Inventor:
Takasi Simoyama, Zama, JP;
Assignee:
FUJITSU OPTICAL COMPONENTS LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/105 (2006.01); H01L 27/144 (2006.01); H01L 31/0232 (2014.01); H01L 31/0224 (2006.01); H01L 31/028 (2006.01); H01L 31/18 (2006.01); H01L 31/109 (2006.01); H01L 31/0312 (2006.01);
U.S. Cl.
CPC ...
H01L 31/105 (2013.01); H01L 27/1443 (2013.01); H01L 31/028 (2013.01); H01L 31/02327 (2013.01); H01L 31/022408 (2013.01); H01L 31/0312 (2013.01); H01L 31/109 (2013.01); H01L 31/1808 (2013.01); H01L 31/1812 (2013.01);
Abstract
An apparatus includes a first semiconductor layer including a first bandgap; and a second semiconductor layer of a first polarity including a second bandgap smaller than the first bandgap and formed over the first semiconductor layer. The first semiconductor layer includes a first conductive region of the first polarity, a second conductive region of a second polarity, and a non-conductive region between the first conductive region and the second conductive region, and the second semiconductor layer is in contact with the first conductive region and the non-conductive region.