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:
May. 19, 2020
Filed:
Oct. 23, 2018
Applicant:
Stmicroelectronics (Crolles 2) Sas, Crolles, FR;
Inventors:
Pierre Morin, Kessel-Lo, BE;
Didier Dutartre, Meylan, FR;
Assignee:
STMicroelectronics (Crolles 2) SAS, Crolles, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 45/00 (2006.01); G11C 13/00 (2006.01); H01L 27/24 (2006.01);
U.S. Cl.
CPC ...
H01L 45/06 (2013.01); G11C 13/0004 (2013.01); H01L 45/126 (2013.01); H01L 45/1233 (2013.01); H01L 45/1293 (2013.01); H01L 45/16 (2013.01); H01L 27/2436 (2013.01);
Abstract
A memory cell includes a phase-change material. A via is connected to a transistor and an element for heating the phase-change material. A layer made of a material (which is one of electrically insulating or has an electric resistivity greater than 2.5·10Ω·m and which is sufficiently thin to be crossable by an electric current due to a tunnel-type effect) is positioned between the via and the heating element. Interfaces between the layer and materials in contact with surfaces of said layer form a thermal barrier.