发明名称 |
Methods and apparatus for diagonal route shielding |
摘要 |
An IC device and layout having one or more layers having route segments and at least some shield segments that are diagonal in orientation. Shield termination segments enclosing a route segment may be diagonal in orientation. Some embodiments describe a method for providing diagonal shielding for a routed net of an IC layout. A route "bloating" method is used where shield position lines (used to position the shielding) are generated by expanding out the dimensions of routes using a bloating shape. The bloating shape that may be dependent on the preferred wiring direction of the layer on which the shielding is provided. After bloating a route, a resulting bloating geometry is identified comprising the area overlapped during the expanding out of the route. The perimeter of the bloating geometry is identified comprising the shield position lines.
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申请公布号 |
US7571408(B1) |
申请公布日期 |
2009.08.04 |
申请号 |
US20050076204 |
申请日期 |
2005.03.09 |
申请人 |
CADENCE DESIGN SYSTEMS, INC. |
发明人 |
YLINEN JUDD M;KHAINSON ALEXANDER |
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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