Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
2005-12-15
2008-12-09
Rossoshek, Helen (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C716S030000, C716S030000, C716S030000, C716S030000, C716S030000
Reexamination Certificate
active
07464356
ABSTRACT:
A method for cell placement in an integrated circuit design that uses a calculated diffusion velocity determined from a density value in order to relocate the cells until the cell placement reduces the density below a predetermined threshold. The method acts to control the movement of different cells to reduce the density of the cells prior to legalization of the cell placement.
REFERENCES:
patent: 5984510 (1999-11-01), Guruswamy et al.
patent: 6209123 (2001-03-01), Maziasz et al.
patent: 6223332 (2001-04-01), Scepanovic et al.
patent: 6269469 (2001-07-01), Pavisic et al.
patent: 6282693 (2001-08-01), Naylor et al.
patent: 6286128 (2001-09-01), Pileggi et al.
patent: 6324674 (2001-11-01), Andreev et al.
patent: 6338972 (2002-01-01), Sudhindranath et al.
patent: 6415425 (2002-07-01), Chaudhary et al.
patent: 6519745 (2003-02-01), Srinivas et al.
patent: 6557145 (2003-04-01), Boyle et al.
patent: 6618846 (2003-09-01), Cheng
patent: 6792585 (2004-09-01), Ku et al.
patent: 6900088 (2005-05-01), Nanjo et al.
patent: 7131096 (2006-10-01), Balsdon et al.
patent: 7178122 (2007-02-01), Kishibe
patent: 7243323 (2007-07-01), Williams et al.
patent: 7386822 (2008-06-01), Hu
patent: 2004/0230931 (2004-11-01), Barbee et al.
patent: 2005/0235246 (2005-10-01), Smith et al.
patent: 2007/0033562 (2007-02-01), Correale et al.
patent: 2007/0204252 (2007-08-01), Furnish et al.
patent: 2008/0066037 (2008-03-01), Alpert et al.
Ren et al.; “Diffusion-based placement migration”; Jun. 13-17, 2005; Design Automation Conference, 2005. Proceedings. 42nd; pp. 515-520.
Ren et al.; “Diffusion-Based Placement Migration With Application on Legalization”; , Dec. 2007; Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on; vol. 26, Issue 12pp. 2158-2172.
Luo et al.; “Computational geometry based placement migration”; Nov. 6-10, 2005; Computer-Aided Design, 2005. ICCAD-2005. IEEE/ACM International Conference on; pp. 41-47.
Alpert Charles Jay
Ren Haoxing
Villarrubia Paul Gerard
Harris Andrew M.
International Business Machines - Corporation
Mitch Harris Atty at Law, LLC
Rossoshek Helen
Salys Casimer K.
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