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:
Feb. 05, 2008
Filed:
May. 12, 2006
Applicant:
Francois Jacquet, Froges, FR;
Inventor:
Francois Jacquet, Froges, FR;
Assignee:
STMicroelectronics SA, Montrouge, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 17/00 (2006.01); G11C 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Bit lines (BL, BLR, BL, BLR, . . . ) of a ROM memory array with differential detection reading are arranged within two overlaid metallization levels so as to increase the read reliability of binary values stored in the array. The ROM array is divided into matrix segments (, . . . ) aligned parallel to the bit lines. The bit lines are shifted horizontally and/or vertically within transition regions (T) located between the segments of matrix, by effecting circular permutations between the positions of the bit lines that are divided up into groups of four.