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. 11, 1997
Filed:
Aug. 30, 1995
Applicant:
Inventors:
Assignee:
SGS-Thomson Microelectronics S.r.l., Agrate Brianza, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365200 ; 36518907 ; 36518908 ; 36518509 ; 36518533 ;
Abstract
A circuit for selectively programming a single bit in non-volatile memory is disclosed. The circuit consists of at least one comparator, at least one transistor, and at least one logic gate for each elementary memory in the memory word. In operation, the circuit allows for individual correction of mis-programmed cells within the memory by comparing the actual contents of the memory with the desired contents. If the actual contents does not match the desired contents, that individual cell is re-programmed.