Power-and-ground (PG) network characterization and distributed PG network creation for hierarchical circuit designs
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United States of America Patent
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Aug 29, 2017
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app pub date -
Jul 13, 2015
filing date -
Jul 13, 2015
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Abstract
A chip layout can include a top-level portion and a set of blocks. The power-and-ground (PG) network for the chip layout can be specified by a set of chip-level PG constraints that is defined using a PG constraint definition language. The set of chip-level PG constraints can be characterized into new sets of PG constraints that correspond to smaller regions of the chip layout, e.g., a set of top-level PG constraints that corresponds to the top-level portion, and a set of block-level PG constraints for each block in the set of blocks. The new sets of PG constraints can then be provided to one or more instances of a PG compiler that executes on one or more processors to create the PG network for the chip layout.
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