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:
Jan. 20, 2009
Filed:
Apr. 01, 2003
Wayne F. Ellis, Jericho, VT (US);
Mark W. Kellogg, Poughkeepsie, NY (US);
Daniel J. Phipps, Poughkeepsie, NY (US);
Wayne F. Ellis, Jericho, VT (US);
Mark W. Kellogg, Poughkeepsie, NY (US);
Daniel J. Phipps, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for performing a common cancel (CC) function on a dynamic random access memory (DRAM) semiconductor device to improve reliability and speed of a memory system. The CC function rakes advantage of the intrinsic delays associated wit memory read operations at high clock frequencies, and the increased write latency commensurate with increased read latencies where non-zero larencies for read and write operations are the norm by permitting address and command ECC structures to operate in parallel with the address and command re-drive circuitt The CC function is extendable to future DDRand DDRoperating requirements in which latency of higher frequency modes will increase due to the shift from 2 bit pre-fetch to 4 and 8 bit pre-fetch architecture.