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:
Sep. 15, 2026
Filed:
May. 17, 2023
Enkris Semiconductor, Inc., Suzhou, CN;
Kai Cheng, Suzhou, CN;
ENKRIS SEMICONDUCTOR, INC., Suzhou, CN;
Abstract
The present disclosure provides enhancement mode switching devices and manufacturing methods thereof. The enhancement mode switching device includes a substrate; a channel structure including a channel layer and a barrier layer. The channel layer is provided on the substrate, and the barrier layer is provided on a side of the channel layer far away from the substrate. A side of the channel structure far away from the substrate is provided with a trench in a gate region, and the trench penetrates through the barrier layer and a part of the channel layer. The enhancement mode switching device includes a p-type semiconductor layer in the gate region, a gate electrode on a side of the p-type semiconductor layer far away from the substrate, a source electrode in the source region, and a drain electrode in the drain region. At least part of the p-type semiconductor layer is in the trench.