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. 10, 2020
Filed:
Feb. 25, 2019
Lumileds Llc, San Jose, CA (US);
Nathan Fredrick Gardner, Sunnyvale, CA (US);
Werner Karl Goetz, San Jose, CA (US);
Michael Jason Grundmann, San Jose, CA (US);
Melvin Barker Mclaurin, San Jose, CA (US);
John Edward Epler, San Jose, CA (US);
Michael David Camras, San Jose, CA (US);
Aurelien Jean Francois David, San Jose, CA (US);
Lumileds LLC, San Jose, CA (US);
Abstract
Methods and apparatus are described. An apparatus includes a hexagonal oxide substrate and a III-nitride semiconductor structure adjacent the hexagonal oxide substrate. The III-nitride semiconductor structure includes a light emitting layer between an n-type region and a p-type region. The hexagonal oxide substrate has an in-plane coefficient of thermal expansion (CTE) within 30% of a CTE of the III-nitride semiconductor structure.