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.

Date of Patent:
Mar. 26, 2002

Filed:

May. 12, 2000
Applicant:
Inventors:

Bertrand Borot, Crolles, FR;

Stéphane Hanriat, Saint Vincent de Mercuze, FR;

Assignee:

STMicroelectronics S.r.l., Agrate Brianza, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 1/700 ;
U.S. Cl.
CPC ...
G11C 1/700 ;
Abstract

A ROM including memory cells, the programmed cells being formed of a transistor connected between a bit line and a supply potential, the cells being organized in sets of at least one column coupled to one sense amplifier per set. The cell programming is inverted with respect to a desired programming only in specific sets where the desired programming would result in a number of programmed cells greater than the number of unprogrammed cells, the logic state provided by the sense amplifiers associated with the specific sets being inverted.


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