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:
Jun. 10, 2008
Filed:
Mar. 24, 2005
Hirofumi Oga, Kanagawa, JP;
Masahiko Kashimura, Kanagawa, JP;
Masakazu Amanai, Kanagawa, JP;
Nec Electronics Corporation, Kanagawa, JP;
Abstract
A non-volatile memory device comprises a plurality of bit lines extending in a first direction, a plurality of word lines extending in a second direction substantially perpendicular to the first direction, a plurality of memory cells provided respectively so as to correspond to the positions of the intersections between the plurality of bit lines and the plurality of word lines, a plurality of source lines corresponding to a plurality of memory cells which are connected to a same bit line, a current source capable of supplying the constant current to a selected memory cell and the corresponding bit line and a voltage control circuit which keeps a voltage of a selected bit line equal to or higher than a predetermined voltage.