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:
Oct. 20, 2026
Filed:
Nov. 29, 2023
Silicon-magic Semiconductor Technology (Hangzhou) Co., Ltd., Hangzhou City, CN;
Chenhan Wang, Hangzhou City, CN;
SILICON-MAGIC SEMICONDUCTOR TECHNOLOGY (HANGZHOU) CO., LTD., Hangzhou City, CN;
Abstract
A semiconductor device includes an epitaxial layer and a doped region located in the epitaxial layer. A contact structure of the semiconductor device includes: an interlayer dielectric layer, arranged on the epitaxial layer; a contact hole, including a first portion extending through the interlayer dielectric layer and a second portion extending into the doped region, where a size of the first portion is greater than a size of the second portion, the second portion is open on a bottom surface of the first portion, and a bottom surface of the second portion is arranged in the doped region; a contact layer, including a first contact layer arranged on the bottom surface of the first portion and a second contact layer arranged on the bottom surface of the second portion; and a conductive channel, arranged in the contact hole and contacting the contact layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile