发明名称 |
Method and apparatus for searching for a global path |
摘要 |
Some embodiments of the invention provide a method of searching for a global path between first and second sets of routable elements in a region of a layout. The method partitions the region into several rectangular sub-regions. It then identifies a set of sub-regions that contain the two sets of elements. Next, it performs a path search to identify a set of path expansions between a sub-region that contains a first-set element and a sub-region that contains a second-set element. When the method performs the path search, it explores expansions along non-Manhattan directions between the sub-regions.
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申请公布号 |
US7010771(B2) |
申请公布日期 |
2006.03.07 |
申请号 |
US20020335251 |
申请日期 |
2002.12.31 |
申请人 |
CADENCE DESIGN SYSTEMS, INC. |
发明人 |
TEIG STEVEN;FRANKLE JONATHAN |
分类号 |
G06F17/50 |
主分类号 |
G06F17/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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