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:
Aug. 03, 2004
Filed:
Mar. 11, 2003
Shuichi Takahashi, Ora-Gun, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A semiconductor memory device of this invention enables high rate readout of stored data without read failure. The semiconductor memory device has a group of memory transistors including a plurality of memory transistors connected in series and a data readout line, through which data stored in the memory transistors is outputted. A sense amplifier is connected to the data readout line. The data readout line is pre-charged to a first electric potential by a transistor for pre-charge. A first transistor for keeping voltage controlled by the sense amplifier is connected to the data readout line, and a second transistor for keeping voltage is connected between the first transistor for keeping voltage and a node at the first electric potential. Furthermore, the semiconductor memory device of this invention has a delay circuit generating a delay signal to turn on the second transistor for keeping voltage, after pre-charging by the transistor for pre-charge is completed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile