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:
Jul. 20, 2004
Filed:
Sep. 05, 2003
Jun Ohtani, Hyogo, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
In each word line driver, an output node is precharged to a power supply voltage prior to a row select operation and disconnected from the power supply voltage in the row select operation. Further, each first node is connected to a corresponding second node selectively driven to a ground voltage according to a row address through a control switch that is turned on in the row select operation. In each shift switch, output nodes corresponding to word lines other than a defective word line and spare word lines are connected to a second node of a corresponding word line or a word line adjacent thereto through a plurality of transistor switches selectively turned on in accordance with shift control, respectively.