Implementing Z directional macro port assignment
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United States of America Patent
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Sep 2, 2014
Grant Date -
Aug 1, 2013
app pub date -
Mar 14, 2013
filing date -
Aug 11, 2011
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Abstract
A method, system and computer program product are provided for implementing an enhanced Z-directional macro port assignment or three-dimensional port creation for random logic macros of heterogeneous hierarchical integrated circuit chips. An initial port placement is provided on a layer for a macro. The initial port placement is expanded to provide a three-dimensional port shape including a plurality of metal layers along a z-axis. Wire routing of each of the macro level and a chip top level is defined within the expanded three-dimensional port shape. Each unnecessary metal layer of the expanded three-dimensional port shape is removed, providing a final three-dimensional port shape.
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