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:
Nov. 18, 2008
Filed:
Feb. 09, 2006
Applicants:
Sylvie Wuidart, Pourrieres, FR;
Luc Wuidart, Pourrieres, FR;
Inventors:
Sylvie Wuidart, Pourrieres, FR;
Luc Wuidart, Pourrieres, FR;
Assignee:
STMicroelectronics S.A., Montrouge, FR;
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A memory cell with at least two detectable states among which is an unprogrammed state, comprising, in series between two terminals of application of a read voltage, at least one first branch comprising: a pre-read stage comprising, in parallel, two switchable resistors having different values with a first predetermined difference; and a programming stage formed of a polysilicon programming resistor, a terminal of the programming resistor being accessible by a programming circuit capable of causing an irreversible decrease in its value.