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. 06, 2025
Filed:
Jun. 22, 2022
Applicant:
Stmicroelectronics (Crolles 2) Sas, Crolles, FR;
Inventors:
Laurent Favennec, Villard Bonnot, FR;
Fausto Piazza, Grenoble, FR;
Assignee:
STMicroelectronics (Crolles 2) SAS, Crolles, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10N 70/20 (2022.12); H01L 23/522 (2005.12); H10B 63/10 (2022.12); H10N 70/00 (2022.12);
U.S. Cl.
CPC ...
H10N 70/231 (2023.01); H01L 23/5226 (2012.12); H10B 63/10 (2023.01); H10N 70/011 (2023.01);
Abstract
A method for making a phase change memory includes a step of forming an array of phase change memory cells, with each cell being separated from neighboring cells in the same line of the array and from neighboring cells in the same column of the array, by the same first distance. The method further includes a step of etching one memory cell out of N, with N being at least equal to 2, in each line or each column.