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. 17, 2020
Filed:
Oct. 31, 2017
Sensor Electronic Technology, Inc., Columbia, SC (US);
Grigory Simin, Columbia, SC (US);
Michael Shur, Latham, NY (US);
Alexander Dobrinsky, Silver Spring, MD (US);
Sensor Electronic Technology, Inc., Columbia, SC (US);
Abstract
A contact for solid state light sources is described. The solid state light source can include an active region, such as a light emitting multiple quantum well, and a semiconductor layer, such as a p-type layer, from which carriers (e.g., holes) enter the active region. A contact can be located adjacent to the semiconductor layer and include a plurality of small area contacts extending only partially through the semiconductor layer. The plurality of small area contacts can have a characteristic lateral size at an interface between the small area contact and the semiconductor layer equal to or smaller than a characteristic depletion region width for the plurality of small area contacts.