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. 16, 2013
Filed:
Apr. 07, 2011
Yannick Marc Nevers, Grenoble, FR;
Vincent Philippe Schuppe, Austin, TX (US);
Yannick Marc Nevers, Grenoble, FR;
Vincent Philippe Schuppe, Austin, TX (US);
ARM Limited, Cambridge, GB;
Abstract
A method of generating a ROM bit cell array layout including the steps of: inputting a predetermined memory architecture having a predetermined positioning of bit lines and virtual ground lines, the memory architecture including a plurality of columns of memory cells, each column of memory cells being located between associated bit lines and virtual ground lines. Adjacent memory cells in each column of memory cells share a common connection to either the associated bit line or the associated virtual ground line. The further steps of evaluating the width of active area of each of said columns of memory cells, in dependence on said predetermined positioning of bit lines and virtual ground lines; selecting a final width of active area in dependence on at least one performance characteristic associated with said final width of active area; and generating the layout according to said final width of active area.