Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
2006-02-28
2006-02-28
Siek, Vuthe (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C716S030000, C716S030000
Reexamination Certificate
active
07007257
ABSTRACT:
An automatic placement and routing apparatus includes an initial power supply setting section for setting initial power supply potentials of cells; a placement and routing section for performing placement, global routing and detail routing of the cells according to a netlist and timing constraint information; a timing verification section for performing the timing verification of the specified paths according to the layout information at a particular stage of the placement and routing; and a power supply modification section for changing, when a cell having a timing problem is detected, the power supply potential of the cell. When the cell having a timing problem is detected, the placement and routing section optimizes the layout according to the change of the power supply potential of the cell, and the timing verification section performs the timing verification of the specified paths according to the layout information optimized.
REFERENCES:
patent: 6225858 (2001-05-01), Guardiani et al.
patent: 6266798 (2001-07-01), Kanazawa et al.
patent: 6370678 (2002-04-01), Culler
patent: 6490715 (2002-12-01), Moriwaki et al.
patent: 6598206 (2003-07-01), Darden et al.
patent: 6675139 (2004-01-01), Jetton et al.
patent: 6792582 (2004-09-01), Cohn et al.
patent: 6820240 (2004-11-01), Bednar et al.
patent: 2002/0002700 (2002-01-01), Inui et al.
patent: 2002/0124234 (2002-09-01), Linz
patent: 2003/0018949 (2003-01-01), Yoshida
patent: 2003/0177459 (2003-09-01), Chen
patent: 2004/0243958 (2004-12-01), Bednar et al.
patent: 1-200647 (1989-08-01), None
patent: 4-96369 (1992-03-01), None
patent: 5-299624 (1993-11-01), None
patent: 6-260557 (1994-09-01), None
Buchanan & Ingersoll PC
Dimyan Magid Y.
Renesas Technology Corp.
Siek Vuthe
LandOfFree
Automatic placement and routing apparatus for designing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic placement and routing apparatus for designing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic placement and routing apparatus for designing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3625808