Automatically routing nets according to current density rules
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United States of America Patent
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May 1, 2012
Grant Date -
N/A
app pub date -
Mar 20, 2009
filing date -
Jun 1, 2004
priority date (Note) -
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Abstract
A technique will automatically route interconnect of an integrated circuit while taking into consideration current density rules. In an implementation, the technique uses a shape-based approach where a grid is not used. Based on data input including current density and a frequency of each net, the technique will determine the current requirements for each net. In an implementation, the technique forms a Steiner tree for a net, and routs using the Steiner tree. The technique widens nets having greater current requirements; adjacent wiring may be pushed aside to create sufficient space for wider nets.
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