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:
Jan. 18, 2022
Filed:
May. 26, 2020
Applicant:
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Inventor:
Paolo Giuseppe Cappelletti, Seveso, IT;
Assignee:
STMicroelectronics S.r.l., Agrate Brianza, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 13/00 (2006.01); H01L 45/00 (2006.01);
U.S. Cl.
CPC ...
H01L 45/065 (2013.01); G11C 13/0004 (2013.01); G11C 13/0069 (2013.01); H01L 45/126 (2013.01); H01L 45/144 (2013.01); G11C 2013/008 (2013.01);
Abstract
A phase-change memory cell is formed by a heater, a crystalline layer disposed above the heater, and an insulating region surrounding sidewalls of the crystalline layer. The phase-change memory cell supports programming with a least three distinct data levels based on a selective amorphization of the crystalline layer.