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. 18, 2020
Filed:
Jul. 31, 2018
International Business Machines Corporation, Armonk, NY (US);
Steve Holmes, Ossining, NY (US);
Devendra Sadana, Pleasantville, NY (US);
Stephen W. Bedell, Wappingers Falls, NY (US);
Bruce Doris, Slingerlands, NY (US);
Hariklia Deligianni, Alpine, NJ (US);
Jia Chen, New York, NY (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A semiconductor device includes a substrate and a buffer layer disposed on a first portion, a second portion, and a third portion of the substrate. The semiconductor device further includes a multilayer light-emitting diode (LED) stack disposed on the first portion of the substrate, and an optical sensor disposed on the second portion of the substrate. The semiconductor device further includes at least one electrode disposed on the third portion of the substrate, a first conductor in contact with the multilayer LED stack, and a second conductor in contact with the optical sensor. The at least one electrode, the first conductor, and the second conductor are formed of a glassy carbon material.