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:
Sep. 13, 2011
Filed:
Mar. 03, 2010
Applicant:
Ward Parkinson, Boise, ID (US);
Inventor:
Ward Parkinson, Boise, ID (US);
Assignee:
STMicroelectroncis S.r.l., Agrate Brianza, IT;
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A phase change memory cells including a memory element or a threshold device is read using a read current which does not threshold either the memory element or the threshold device in the case of both a set and a reset memory element. As a result, higher currents may be avoided, increasing read endurance. A sensing circuit includes a charging rate detector coupled to a selected address line and sensing a rate of change of a voltage on the selected address line.