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:
Apr. 09, 2024
Filed:
Apr. 13, 2021
United Microelectronics Corp., Hsin-Chu, TW;
Hui-Lin Wang, Taipei, TW;
Si-Han Tsai, Taichung, TW;
Ching-Hua Hsu, Kaohsiung, TW;
Chen-Yi Weng, New Taipei, TW;
Po-Kai Hsu, Tainan, TW;
UNITED MICROELECTRONICS CORP., Hsin-Chu, TW;
Abstract
A semiconductor memory device includes a substrate having a memory area and a logic circuit area thereon, a first interlayer dielectric layer on the substrate, and a second interlayer dielectric layer on the substrate. An embedded memory cell structure is disposed within the memory area between the first interlayer dielectric layer and the second interlayer dielectric layer. The second interlayer dielectric layer includes a first portion covering the embedded memory cell structure within the memory area and a second portion covering the logic circuit area. A top surface of the first portion is coplanar with a top surface of the second portion.