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:
May. 26, 1998
Filed:
Feb. 26, 1997
Applicant:
Inventor:
Yasuhiro Kobayashi, Gifu, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518901 ; 36523001 ;
Abstract
Disclosed is a semiconductor memory device. The memory device includes a plurality of memory cells, and a write control unit for controlling voltages applied to the memory cells to write data in the memory cells. The memory device further includes a current detector, connected to the write control unit. The current detector being implemented for detecting a cell current flowing in each of the memory cells and controlling the write control unit based on the detected cell current value. In this manner, writing to the memory cells is permitted until desired data is rewritten in each memory cell.