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. 25, 2012
Filed:
Apr. 23, 2010
Hiroaki Tanizaki, Itami, JP;
Yuichi Kunori, Tokyo, JP;
Tomoshi Futatsuya, Tokyo, JP;
Kenji Koda, Itami, JP;
Hiroaki Tanizaki, Itami, JP;
Yuichi Kunori, Tokyo, JP;
Tomoshi Futatsuya, Tokyo, JP;
Kenji Koda, Itami, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
The present invention provides a semiconductor device having a nonvolatile memory function capable of shortening an erase time and executing data access efficiently. When, under the control of a command register/control circuit, an erase voltage is applied to an embedded erase gate wiring disposed in a memory cell boundary region, and an electrical charge is transferred between a floating gate and an embedded erase gate to thereby perform an erase operation, a read selection voltage is applied to a memory gate line and an assist gate line during the application of the erase voltage to thereby carry out the reading of data.