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:
Aug. 28, 2001
Filed:
May. 24, 2000
Stéphane Hanriat, Saint Vincent de Mercuze, FR;
Bertrand Borot, Crolles, FR;
STMicroelectronics S.A., Gentilly, FR;
Abstract
A ROM including columns of memory cells connected by columns to respective bit lines; a reference bit line; charge transistors controllable by a common charge line and respectively connecting the bit lines and the reference bit line to a high supply potential. The reference bit line is associated with a column of unprogrammed cells, and the memory includes means for activating the charge line before activation of a word line, the duration between the activation of the charge line and the activation of the word line, and the features of the charge transistors, being chosen so that the level variation of the bit lines is low as compared to the level of the high supply potential.