Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
2008-05-15
2010-11-16
Levin, Naum B (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C716S030000, C257S207000
Reexamination Certificate
active
07836422
ABSTRACT:
A method for routing wires in an integrated circuit includes defining an even number n of initial width routing tracks in a selected routing channel. The n initial routing tracks are separated by a substantially equal first separation distance from the other routing tracks, Vss and Vdd in the routing channel. The n initial width routing tracks and the first separation distance have an initial width about equal to the minimum design width. An odd number of routing tracks less than n are then selected, the odd number of routing tracks have a second pitch greater than the first pitch, assigning the odd number of routing tracks in the routing channel. A third routing pitch can be defined that is wider than the second routing pitch for alternating routing tracks at the odd number of routing tracks if needed. A wire routing system in an integrated circuit is also described.
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Huang Dajen
Wu Yi
Levin Naum B
Martine & Penilla & Gencarella LLP
Oracle America Inc.
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