Computer-aided design and analysis of circuits and semiconductor – Integrated circuit design processing – Logic design processing
Reexamination Certificate
2009-01-23
2011-10-04
Rossoshek, Helen (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Integrated circuit design processing
Logic design processing
C716S050000, C716S052000, C716S103000, C716S104000, C716S112000, C716S132000, C716S136000
Reexamination Certificate
active
08032847
ABSTRACT:
A layout design method of a semiconductor integrated circuit includes degenerating a layout netlist extracted from layout data, comparing the layout netlist after the reduction with a circuit diagram netlist, and creating a layout circuit association table of a layout cell after the reduction and a circuit element. The method includes creating a before and after reduction association table based on the layout netlist before and after the reduction, counting the number of layout elements in a layout cell area before the reduction, comparing the counted number of layout elements and the number of degenerated elements, and creating mapping information associating the layout cell with the circuit element.
REFERENCES:
patent: 5084824 (1992-01-01), Lam et al.
patent: 5392222 (1995-02-01), Noble
patent: 5675499 (1997-10-01), Lee et al.
patent: 5825191 (1998-10-01), Niijima et al.
patent: 6965853 (2005-11-01), Kuzuma et al.
patent: 6978437 (2005-12-01), Rittman et al.
patent: 7117462 (2006-10-01), Kimura et al.
patent: 7451430 (2008-11-01), Miyagawa
patent: 7461326 (2008-12-01), Kanamaru
patent: 7681159 (2010-03-01), Matsuoka et al.
patent: 7716611 (2010-05-01), Pikus et al.
patent: 7812694 (2010-10-01), Ding et al.
patent: 7853909 (2010-12-01), Kobayashi et al.
patent: 2004/0049747 (2004-03-01), Yamasaki et al.
patent: 2007/0009836 (2007-01-01), Yanagisawa
patent: 2009/0077527 (2009-03-01), Gergov et al.
patent: 2009/0089037 (2009-04-01), Yamada
patent: 2009/0254870 (2009-10-01), Kojima
patent: 2009/0288055 (2009-11-01), Shankar et al.
patent: 2010/0242011 (2010-09-01), Mukai et al.
patent: 2010/0306720 (2010-12-01), Pikus et al.
patent: 9-44559 (1997-02-01), None
patent: 09044559 (1997-02-01), None
Shi; “Module recognition and its application to LVS of ASIC”; Publication Year: 2001; ASIC, 2001. Proceedings. 4th International Conference on; pp. 693-695.
McGinn IP Law Group PLLC
Renesas Electronics Corporation
Rossoshek Helen
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