Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
2005-03-09
2009-08-04
Levin, Naum B (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C716S030000, C257S659000, C257S660000
Reexamination Certificate
active
07571408
ABSTRACT:
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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Khainson Alexander
Ylinen Judd M
Adeli & Tollen LLP
Cadence Design Systems Inc.
Levin Naum B
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