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:
Nov. 20, 2018
Filed:
Jun. 03, 2016
Applicant:
Fraunhofer-gesellschaft Zur Förderung Der Angewandten Forschung E.v., Munich, DE;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/107 (2006.01); H01L 31/0232 (2014.01); H01L 31/18 (2006.01); G02B 6/10 (2006.01); G02B 6/12 (2006.01); H01L 31/101 (2006.01); H01L 31/0224 (2006.01);
U.S. Cl.
CPC ...
H01L 31/1075 (2013.01); G02B 6/12004 (2013.01); H01L 31/0232 (2013.01); H01L 31/022408 (2013.01); H01L 31/101 (2013.01); H01L 31/1844 (2013.01);
Abstract
A semiconductor photodiode, including a light-absorbing layer; an optical waveguide via which light can evanescently be coupled into the light-absorbing layer, and a doped contact layer arranged between the light-absorbing layer and the optical waveguide. The optical waveguide at least sectionally has a doping which produces a diffusion barrier counteracting a diffusion of dopant of the contact layer into the optical waveguide.