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:
Sep. 07, 2004
Filed:
Jul. 03, 2002
Applicant:
Inventor:
Masaaki Mihara, Tokyo, JP;
Assignee:
Renesas Technology Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 1/604 ; G11C 1/606 ;
U.S. Cl.
CPC ...
G11C 1/604 ; G11C 1/606 ;
Abstract
A nonvolatile semiconductor memory which is provided with a plurality of memory elements each having a control gate and a floating gate such that data is stored by electron injection to the floating gate and electron emission from the floating gate, including an electric current detecting circuit for detecting a drain current supplied to a drain of each of the memory elements and a voltage control circuit for controlling a gate voltage supplied to the control gate of each of the memory elements, in accordance with the drain current detected by the electric current detecting circuit.