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:
Jun. 24, 2014
Filed:
Sep. 04, 2013
Stmicroeletronics (Crolles 2) Sas, Crolles, FR;
Commissariat À L'énergie Atomique ET Aux Énergies Alternatives, Paris, FR;
Jean-Francois Nodin, Quaix en Chartreuse, FR;
Veronique Sousa, Grenoble, FR;
Sandrine Lhostis, Theys, FR;
STMicroelectronics (Crolles 2) SAS, Crolles, FR;
Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Paris, FR;
Abstract
A memory cell including a via made of a phase-change material arranged between a lower electrode and an upper electrode, wherein the via includes a first region adjacent to a second region itself adjacent to at least one third region, the first, second, and third regions each extending from the upper electrode to the lower electrode, the crystallization temperature of the second region ranging between that of the first region and that of the third region, and the melting temperatures of the first, second, and third regions being substantially identical.