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. 31, 2017
Filed:
Mar. 10, 2017
Applicant:
United Microelectronics Corp., Hsin-Chu, TW;
Inventors:
Chia-Ching Hsu, Yunlin County, TW;
Liang Yi, Singapore, SG;
Shen-De Wang, Hsinchu County, TW;
Ko-Chi Chen, Taoyuan, TW;
Assignee:
UNITED MICROELECTRONICS CORP., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 45/00 (2006.01); H01L 27/24 (2006.01);
U.S. Cl.
CPC ...
H01L 45/1233 (2013.01); H01L 27/2463 (2013.01); H01L 45/08 (2013.01); H01L 45/1246 (2013.01); H01L 45/1253 (2013.01); H01L 45/146 (2013.01); H01L 45/16 (2013.01);
Abstract
A resistive random access memory includes a lower electrode, an upper electrode and a resistive layer between the lower electrode and the upper electrode, wherein the resistive layer includes a constant-resistance portion and a variable-resistance portion surrounding the constant-resistance portion.