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:
Aug. 26, 2025
Filed:
Oct. 17, 2023
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Meng-Han Lin, Hsinchu, TW;
Chih-Ren Hsieh, Changhua County, TW;
Chih-Pin Huang, Hsinchu, TW;
Ching-Wen Chan, Taichung, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., Hsinchu, TW;
Abstract
An integrated circuit device includes a substrate, an isolation feature, a memory cell, and a semiconductor device. The substrate has a cell region, a peripheral region, and a transition region between the cell region and the peripheral region. The isolation feature is in the transition region. A top surface of the isolation feature has a first portion and a second portion lower than the first portion, the second portion of the top surface of the isolation feature is between the cell region and the first portion of the top surface of the isolation feature, and a bottom surface of the isolation feature has a step height directly below the second portion of the top surface of the isolation feature. The is memory cell over the cell region of the substrate. The semiconductor device is over the peripheral region of the substrate.