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Methods and systems for optimizing placement on a clock signal distribution network

  • US 20080209038A1
  • Filed: 02/23/2007
  • Published: 08/28/2008
  • Est. Priority Date: 02/23/2007
  • Status: Abandoned Application
First Claim
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1. A method for optimizing an initial placement a plurality of features over a clock signal distribution network on an integrated circuit (IC), wherein the plurality of features includes a plurality of registers and a corresponding plurality of local drivers, the method comprising:

  • characterizing the plurality of features by a plurality of register groupings, the plurality of register groupings defined by similarity of corresponding local drivers, wherein each of the plurality of register groupings is physically delimited by a defined region on the clock signal distribution network in the initial placement; and

    iteratively moving the plurality of register groupings in accordance with a plurality of exception based rules over an increasingly widening area of comparison to create an optimized placement of the plurality of features.

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