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:
Dec. 14, 2004
Filed:
Aug. 08, 2003
Yasuaki Hirano, Tenri, JP;
Shuichiro Kouchi, Tenri, JP;
Sharp Kabushiki Kaisha, Abeno-ku, JP;
Abstract
A non-volatile semiconductor memory device, is provided, which comprises a plurality of memory cells capable of electrically writing and erasing data and a voltage control section for controlling a control voltage to be applied to each of the plurality of row lines. The voltage control section comprises a storing section and a voltage output section. The storing section stores the value of the control voltage, which is calculated to permit a threshold voltage distribution to be within a predetermined range, in accordance with the threshold voltage distribution of the plurality of memory cells in each chip. The voltage output section outputs the control voltage having the value stored in the storing section to each of the plurality of row lines.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile