Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
2006-07-04
2006-07-04
Whitmore, Stacy A. (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C716S030000, C716S030000, C345S649000, C345S650000
Reexamination Certificate
active
07073149
ABSTRACT:
A floor planner tool for integrated circuit design which provides tools and displays for a designer to create a floor plan to define desired placement of circuits defined in a logical netlist by creating a physical hierarchy comprised of nested physical blocks (pblocks). Each pblock is a data structure which contains data which defines which circuits from the logical netlist are assigned to it. Each pblock stands alone and can be input to a place and route tool without the rest of the physical hierarchy. Each pblock data structure contains pointers to the circuits on the netlist assigned to that pblock, identifies other pblocks nested within it and contains a list of pins for the instances within the pblock. Net data structures in the physical hierarchy define which nets are connected to which pins.
REFERENCES:
patent: 5140526 (1992-08-01), McDermoth et al.
patent: 5499191 (1996-03-01), Young
patent: 5513119 (1996-04-01), Moore et al.
patent: 5617327 (1997-04-01), Duncan
patent: 6170080 (2001-01-01), Ginetti et al.
patent: 6408422 (2002-06-01), Hwang
patent: 6631508 (2003-10-01), Williams
patent: 2004/0078767 (2004-04-01), Burks et al.
Wang, Maogang et al., “Multi-Million Gate FPGA Physical Design Challenges” ICCAD 2003, Nov. 11-13, 2003, pp. 891-898, available from Cadence Design Systems, www.cadence.com, 2655 Seely Avenue, San Jose, California 95134.
Knol David A.
Raje Salil Ravindra
Fish Ronald C.
Kanzki Kim
Levin Naum B.
Maunu Leroy D.
Whitmore Stacy A.
LandOfFree
System for representing the logical and physical information... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for representing the logical and physical information..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for representing the logical and physical information... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3610151