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. 17, 2024
Filed:
Sep. 28, 2020
Suzhou Oriental Semiconductor Co., Ltd., Jiangsu, CN;
SUZHOU ORIENTAL SEMICONDUCTOR CO., LTD., Jiangsu, CN;
Abstract
The present application belongs to the technical field of semiconductor power devices and provides a semiconductor power device. The semiconductor power device includes an n-shaped substrate, an n-shaped epitaxial layer positioned on the n-shaped substrate, and at least three grooves recessed inside the n-shaped epitaxial layer, where a portion of the n-shaped epitaxial layer between two adjacent grooves of the at least three grooves is a mesa structure, an upper part of the mesa structure is provided with a p-shaped body region, and an n-shaped source region is provided inside the p-shaped body region. The mesa structure includes at least one mesa structure with a lower width being a first width and at least one mesa structure with a lower width being a second width, and the second width is greater than the first width.