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. 23, 2015
Filed:
Mar. 23, 2011
Evangelos S. Eleftheriou, Rueschlikon, CH;
Angeliki Pantazi, Rueschlikon, CH;
Nikolaos Papandreou, Rueschlikon, CH;
Haris Pozidis, Rueschlikon, CH;
Abu Sebastian, Rueschlikon, CH;
Evangelos S. Eleftheriou, Rueschlikon, CH;
Angeliki Pantazi, Rueschlikon, CH;
Nikolaos Papandreou, Rueschlikon, CH;
Haris Pozidis, Rueschlikon, CH;
Abu Sebastian, Rueschlikon, CH;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A method is provided that comprises a step of programming the PCM cell to have a respective definite cell state by at least one current pulse flowing to the PCM cell, said respective definite cell state being defined at least by a respective definite resistance level, a step of controlling said respective current pulse by a respective bitline pulse and a respective wordline pulse, and a step of controlling said respective bitline pulse and said respective wordline pulse dependent on an actual resistance value of the PCM cell and a respective reference resistance value being defined for the definite resistance level.