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:
Jun. 27, 2000
Filed:
Aug. 13, 1999
Helmut Schneider, Munchen, DE;
Michael Wagner, Mittelstetten, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A combined precharging and homogenizing circuit for a semiconductor memory configuration made up of a memory cell array having a multiplicity of bit line pairs. The combined precharging and homogenizing circuit containing a first and a second field-effect precharging transistor and a homogenizing transistor connected in series between the two precharging transistors. Gates of the two precharging transistors and of the homogenizing transistor are connected together to form a common gate. Sources of the precharging transistors are connected together to form a common source. A drain of the first precharging transistor and a drain of the homogenizing transistor are connected together to form a common drain and the source of the homogenizing transistor and the drain of the second precharging transistor are connected together to form a common source/drain. In the combined precharging and homogenizing circuit, the invention provides that the common gate is angled and is configured rotated through about 45.degree. in relation to a longitudinal direction of the bit lines. In addition, the common drain and the common source/drain are drawn forward beyond the common gate defining protruding regions, and that bit line contacts are accommodated in the protruding regions.