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:
Dec. 02, 2008
Filed:
Jan. 03, 2007
Dennis E. Dudeck, Hazelton, PA (US);
Donald Albert Evans, Lancaster, OH (US);
Richard Joseph Mcpartland, Nazareth, PA (US);
Hai Quang Pham, Hatfield, PA (US);
Dennis E. Dudeck, Hazelton, PA (US);
Donald Albert Evans, Lancaster, OH (US);
Richard Joseph McPartland, Nazareth, PA (US);
Hai Quang Pham, Hatfield, PA (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
A method and apparatus are provided for reducing leakage current in a read only memory device. Leakage current is reduced by reducing the duration of the precharge cycle during each read cycle so that the associated leakage current will flow for a shorter time period during each cycle. The precharge phase is positioned at the beginning of each read cycle, prior to the evaluation phase. The precharge phase is terminated by a subsequent clock edge or by an internal time out prior to a subsequent clock edge. The time interval between when the columns reach their precharge voltage and the evaluation phase begins is reduced.