US Patent No. 10,090,436

SEMICONDUCTOR LIGHT EMITTING DEVICE WITH SHAPED SUBSTRATE AND METHOD OF MANUFACTURING THE SAME


Patent No. 10,090,436
Issue Date October 02, 2018
Title Semiconductor Light Emitting Device With Shaped Substrate And Method Of Manufacturing The Same
Inventorship Toni Lopez, Aachen (DE)
Assignee Lumileds LLC, San Jose, CA (US)

Claim of US Patent No. 10,090,436

1. A device comprising:a substrate;
a semiconductor structure disposed on the substrate, the semiconductor structure comprising a light emitting layer disposed between an n-type region and a p-type region;
wherein:
the substrate comprises a first sidewall and a second sidewall;
the first sidewall and second sidewall are disposed at different angles relative to a major surface of the semiconductor structure;
the first sidewall forms a right angle with the major surface of the semiconductor structure; and
light is extracted from the substrate through the second sidewall; and
a reflective layer disposed over the first sidewall, the reflective layer extending from the semiconductor structure to an interface between the first sidewall and the second sidewall.