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:
Nov. 06, 1984
Filed:
Nov. 24, 1982
Yoshihiro Takemae, Yokohama, JP;
Hatsuo Miyahara, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A dynamic semiconductor memory device includes two bit lines connected to a sense amplifier and an active restore circuit which is formed from bit line pull-up transistors, each of which is connected between a bit line connected to the sense amplifier and a high potential source. In the active restore circuit, after the sense amplifier is actuated, the bit line pull-up transistor connected to the bit line on the high potential side is turned on by supplying a control signal to a gate so that the bit line is pulled up to a high voltage potential. The control signal is maintained at a voltage potential lower than the ground level from the time of actuation of the word line to the time of actuation of the sense amplifier.