Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
2006-01-03
2009-08-11
Chiang, Jack (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C716S030000
Reexamination Certificate
active
07574687
ABSTRACT:
In a System-in-Package (SiP) module, a method and a system for optimizing the timing margin of source-synchronous interface clocks is provided. Clock signals generated by first device are transmitted to serpentine traces located on a Printed Circuit Board (PCB) which adjusts the active edge of one signal relative to another signal. The serpentine trace introduces a delay in the clock signal thereby optimizing timing margins. By providing access to signals otherwise internal the SiP, testing and signal verification is also simplified.
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patent: 6446249 (2002-09-01), Wang et al.
patent: 7450535 (2008-11-01), Best
Lawrence Golick, et al, “EETimes.com—SiP Models call for right blend of tech” 2 pages, May, 10, 2004.
Manoz Krovvidy, et al “DDR Timing Closure: Physical Design and STA Methodology”, 31 pages. 2003, Snug, Boston.
Camerlo Sergio
Cheng Wheling
Bowers Brandon W
Chiang Jack
Cisco Technology Inc.
Trellis IP Law Group, PC
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