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. 16, 2010
Filed:
Jun. 10, 2004
Roger Cuppens, Eindhoven, NL;
Anthonie Meindert Herman Ditewig, Eindhoven, NL;
Roger Cuppens, Eindhoven, NL;
Anthonie Meindert Herman Ditewig, Eindhoven, NL;
NXP B.V., Eindhoven, NL;
Abstract
A static memory cell comprising a pair of cross-coupled inverters () which is 'shadowed' with non-volatile memory elements () so that data written in the static memory can be stored in the non-volatile cell, but also can be recalled later. The non-volatile cells () are programmed with opposite data to increase the robustness of the retrieval process, and they are cross-coupled to the internal nodes (A, B) of the static memory cell, one the non-volatile cells () having a control gate connected to B and its source to A, and the other non-volatile element () having a control gate connected to A and its source to B. The drain of each non-volatile element () is connected by means of a respective pMOS transistor () to a program supply means.