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:
Jul. 24, 2018
Filed:
Sep. 26, 2016
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Junji Kotani, Atsugi, JP;
Norikazu Nakamura, Sagamihara, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A semiconductor crystal substrate includes a substrate, a first semiconductor layer including a nitride semiconductor and formed over the substrate, a second semiconductor layer including a nitride semiconductor and formed over the first semiconductor layer, a first cap layer formed on the second semiconductor layer, and a second cap layer formed on the first cap layer. Each of the first semiconductor layer and the second semiconductor layer has a single-crystal structure, the first cap layer has one of a single-crystal structure and a polycrystalline structure, and the second cap layer has an amorphous structure.