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:
Jul. 08, 2008
Filed:
Jul. 08, 2005
Paolo Rolandi, Voghera, IT;
Luigi Pascucci, Sesto San Giovanni, IT;
Paolo Rolandi, Voghera, IT;
Luigi Pascucci, Sesto San Giovanni, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
A read/verify circuit for multilevel memory cells includes: a read terminal selectively connectable to a plurality of array cells, having respective array threshold voltages; a plurality of reference cells, having respective reference threshold voltages; and a plurality of threshold-detection circuits, for detecting the array thresholds and the reference thresholds. In particular, the read terminal and the reference cells are each connected to a respective threshold-detection circuit. Each threshold-detection circuit is provided with a respective detector element of a resistive type, set so as to be traversed by a current response to turning-on of the respective array cell or reference cell associated thereto.