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:
Jan. 16, 2007
Filed:
Oct. 07, 2005
Ken Arakawa, Kusatsu, JP;
Ken Arakawa, Kusatsu, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A nonvolatile semiconductor memory includes a memory cellcomposed of a memory cell transistorhaving a floating gate and a control gate and a memory cell selecting transistor, a reference cellcomposed of a reference cell transistorhaving the same structure as the memory cell transistorand a reference cell selecting transistor, and a reference word line potential generating circuitconnected to a gate of the reference cell selecting transistor, wherein, in a reading operation, the same power supply voltage is applied between a floating gate and a source node of the reference cell transistor, and an intermediate potential between a potential applied when the memory cell selecting transistoris selected and a potential applied when the memory cell selecting transistoris not selected is applied to the gate of the reference cell selecting transistor
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile