Computer-aided design and analysis of circuits and semiconductor – Integrated circuit design processing – Logic design processing
Reexamination Certificate
2007-04-04
2011-11-15
Dinh, Paul (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Integrated circuit design processing
Logic design processing
C716S107000, C716S108000, C716S110000, C716S111000, C716S115000
Reexamination Certificate
active
08060846
ABSTRACT:
Embodiments of a method for detecting potential areas of inductive coupling in a high density integrated circuit design are described. The inductance mitigation process first converts the inductive analysis into a density problem. The density of wires within a region that may switch within a portion of the system clock are compared to the density of wires will not switch within that same time. Regions of the chip that have a high ratio of density of switching wires versus non-switching wires are determined to have the potential of an inductive coupling problem. Additional grounded metal is added into the problematic regions of the chip to improve the switching versus non-switching wire density.
REFERENCES:
patent: 2002/0104064 (2002-08-01), Sasaki et al.
patent: 2005/0120316 (2005-06-01), Suaya et al.
Burke Simon
Roseboom Edward M.
Taylor Stuart A.
Advanced Micro Devices , Inc.
Dinh Paul
Volpe and Koenig P.C.
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