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:
Oct. 30, 2007
Filed:
Jan. 18, 2006
Nicola Del Gatto, Torre del Greco, IT;
Carlo Lisi, Milan, IT;
Umberto Di Vincenzo, Capriate S.G., IT;
Paolo Turbanti, Milan, IT;
Nicola Del Gatto, Torre del Greco, IT;
Carlo Lisi, Milan, IT;
Umberto Di Vincenzo, Capriate S.G., IT;
Paolo Turbanti, Milan, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
A method for verifying an array cell of a memory device may include determining after each erase pulse or program pulse the threshold of a cell addressed through a selected array word-line and bit-line, by applying an identical voltage ramp to the selected array word-line and to the control gate of a reference cell, while biasing at a certain voltage deselected word-lines through distribution lines of the voltage generated by a charge pump generator. The method may further include temporarily decoupling the deselected word-lines from the distribution lines of the bias voltage for the duration of the voltage ramp.