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:
Apr. 21, 1998
Filed:
Nov. 17, 1994
Applicant:
Inventors:
Yvon Bahout, Fuveau, FR;
Francedilla.ois Tailliet, Epinay Sur Seine, FR;
Assignee:
SGS-Thomson Microelectronics, S.A., Gentilly, FR;
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365201 ; 36518901 ; 36518907 ;
Abstract
In order to make it possible to ascertain that the programming cycles in an EEPROM type memory have been carried out efficiently, supplementary test cells are provided. A data writing operation is carried out in three successive cycles that consist in the programming of a test cell with a first logic value, a second cycle for the programming of the data elements and a third cycle for the programming of the test cell with a logic value that is complementary to the first one. The state of the test cell enables the detection of power interruptions during programming.