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. 01, 2026
Filed:
Mar. 02, 2022
Shanghai Bright Power Semiconductor Co., Ltd., Shanghai, CN;
Abstract
A MOSFET device includes a semiconductor substrate, serving as a drain region, and an epitaxial region disposed on an upper surface of the substrate. The MOSFET device includes multiple body regions formed in the epitaxial region, and multiple source regions. The body regions are disposed near an upper surface of the epitaxial region and spaced laterally from one another, and each of the source regions is disposed in a corresponding one of the body regions near an upper surface of the body region. The MOSFET device includes a gate structure having multiple planar gates and a trench gate. Each of the planar gates is disposed on the upper surface of the epitaxial region overlapping a corresponding body region. The trench gate is formed partially through the epitaxial region and between the body regions, an upper surface of the trench gate being recessed below the upper surface of the epitaxial region.