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. 21, 2023
Filed:
May. 03, 2021
Applicant:
Globalfoundries U.s. Inc., Santa Clara, CA (US);
Inventors:
Abdelsalam Aboketaf, Essex Junction, VT (US);
Yusheng Bian, Ballston Lake, NY (US);
Assignee:
GlobalFoundries U.S. Inc., Santa Clara, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/122 (2006.01); G02B 6/13 (2006.01); G02B 6/125 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G02B 6/1228 (2013.01); G02B 6/125 (2013.01); G02B 6/131 (2013.01); G02B 2006/12061 (2013.01);
Abstract
Structures for a photodetector or terminator and methods of fabricating a structure for a photodetector or terminator. The structure includes a waveguide core having a longitudinal axis, a pad connected to the waveguide core, and a light-absorbing layer on the pad adjacent to the waveguide core. The light-absorbing layer includes an annular portion, a first taper, and a second taper laterally spaced from the first taper. The first taper and the second taper are positioned adjacent to the waveguide core.