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. 07, 2000
Filed:
Jan. 28, 2000
Applicant:
Inventor:
Yuichi Uzawa, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365203 ; 365205 ; 36523003 ;
Abstract
As the pre-charge potential for write global data buses (12, 13), a potential lower than the power supply voltage (Vii) for peripheral circuit by the threshold voltage (Vth) of a transistor is used. This suppresses disturbance in the potential of a pair of bit lines (18, 19) due to pre-charge operation. It suffices if the write global data buses are pre-charged to the potential lower than the power supply voltage (Vii) for peripheral circuit by the threshold voltage (Vth). This can reduce current consumption accordingly. By generating the pre-charge potential without using the power supply voltage (Viic) for core, adverse effects on sense operation can be avoided.