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. 03, 2018
Filed:
Oct. 02, 2017
Industrial Technology Research Institute, Hsinchu, TW;
Industrial Technology Research Institute, Chutung, Hsinchu, TW;
Abstract
A III-nitride based semiconductor structure includes a substrate; a buffer layer disposed above the substrate; a first gallium nitrite (GaN) layer disposed above the buffer layer and including p-type GaN; a second GaN layer disposed on the first GaN layer and including at least a first region and a second region; a channel layer disposed above the second GaN layer; a barrier layer disposed above the channel layer; and a gate electrode disposed above the barrier layer. The first region of the second GaN layer is positioned correspondingly to the gate electrode and includes n-type GaN having a first doping concentration. The second region of the second GaN layer (such as the lateral portion of the second GaN layer) is positioned correspondingly to the areas outsides the gate electrode and includes n-type GaN having a second doping concentration larger than the first doping concentration.