Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
2002-12-17
2008-11-18
Dinh, Paul (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C716S030000, C716S030000
Reexamination Certificate
active
07454735
ABSTRACT:
A method of designing a clock tree in an integrated circuit combines steps of making a list of all clock sinks; positioning a temporary reference insertion point (TIP); grouping the sinks together with structured clock buffers (SCBs) in a set of levels; and moving the SCBs to improve symmetry of the tree. The SCBs may be of several sizes and may be positioned horizontally or vertically and moved within limits to permit the program to calculate a complete tree.
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Arthanari Geetha
Carrig Keith M.
Lasher Mark R.
Menard Daniel R.
Abate Joseph P.
Dinh Paul
International Business Machines - Corporation
Parihar Suchin
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