Local preferred direction routing

Details Local preferred direction routing Local preferred direction routing

2004-12-06

2008-08-12

Chiang, Jack (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

C716S030000

Reexamination Certificate

active

07412682

ABSTRACT:
Some embodiments of the invention provide a method for routing. The method defines at least one wiring layer that has at least two regions with different local preferred wiring directions. The method then uses the differing local preferred wiring directions to define a global route on the wiring layer. The two regions are a first region with a first local preferred wiring direction, and a second region with a second local preferred wiring direction. The global route traverses the first region along the first local preferred wiring direction and traverses the second region along the second local preferred wiring direction.

REFERENCES:
patent: 4571451 (1986-02-01), Linsker et al.
patent: 4615011 (1986-09-01), Linsker
patent: 4777606 (1988-10-01), Fournier
patent: 4855253 (1989-08-01), Weber
patent: 4855929 (1989-08-01), Nakajima
patent: 4910680 (1990-03-01), Hiwatshi
patent: 5375069 (1994-12-01), Satoh et al.
patent: 5541005 (1996-07-01), Bezama et al.
patent: 5635736 (1997-06-01), Funaki et al.
patent: 5650653 (1997-07-01), Rostoker et al.
patent: 5673201 (1997-09-01), Malm et al.
patent: 5723908 (1998-03-01), Fuchida et al.
patent: 5798936 (1998-08-01), Cheng
patent: 5801385 (1998-09-01), Endo et al.
patent: 5801960 (1998-09-01), Takano et al.
patent: 5811863 (1998-09-01), Rostoker et al.
patent: 5814847 (1998-09-01), Shihadeh et al.
patent: 5980093 (1999-11-01), Jones et al.
patent: 6262487 (2001-07-01), Igarashi et al.
patent: 6263475 (2001-07-01), Toyonaga et al.
patent: 6324674 (2001-11-01), Andreev et al.
patent: 6407434 (2002-06-01), Rostoker et al.
patent: 6441470 (2002-08-01), Shenoy
patent: 6448591 (2002-09-01), Juengling
patent: 6526555 (2003-02-01), Teig et al.
patent: 6711727 (2004-03-01), Teig et al.
patent: 6769105 (2004-07-01), Teig et al.
patent: 6772406 (2004-08-01), Trimberger
patent: 6792587 (2004-09-01), Xing et al.
patent: 6858928 (2005-02-01), Teig et al.
patent: 6870255 (2005-03-01), Teig et al.
patent: 6889371 (2005-05-01), Teig et al.
patent: 6889372 (2005-05-01), Teig et al.
patent: 6898773 (2005-05-01), Teig et al.
patent: 6915500 (2005-07-01), Teig et al.
patent: 6973634 (2005-12-01), Teig et al.
patent: 6988258 (2006-01-01), Tan et al.
patent: 6996789 (2006-02-01), Teig et al.
patent: 7003752 (2006-02-01), Teig et al.
patent: 7010771 (2006-03-01), Teig et al.
patent: 7036101 (2006-04-01), He et al.
patent: 7036105 (2006-04-01), Teig et al.
patent: 7047513 (2006-05-01), Teig et al.
patent: 7062743 (2006-06-01), Kahng et al.
patent: 7080342 (2006-07-01), Teig et al.
patent: 7096449 (2006-08-01), Teig et al.
patent: 7117468 (2006-10-01), Teig et al.
patent: 7171635 (2007-01-01), Teig et al.
patent: 7174529 (2007-02-01), Hetzel
patent: 7197738 (2007-03-01), Hetzel et al.
patent: 2004/0098696 (2004-05-01), Teig et al.
patent: 2004/0098697 (2004-05-01), Frankle et al.
patent: 2005/0229134 (2005-10-01), Hetzel et al.
patent: 2005/0240894 (2005-10-01), Teig et al.
patent: 04000677 (1992-01-01), None
Cheng-Kok Koh and Patrick H. Madden, Manhattan or Non Manhattan? A Study of Alternative VLSI routing Architectures, 2000, pp. 47-52.
U.S. Appl. No. 11/005,316, filed Dec. 6, 2004, Asmus Hetzel et al.
U.S. Appl. No. 11/005,448, filed Dec. 6, 2004, Asmus Hetzel et al.
U.S. Appl. No. 11/005,162, filed Dec. 6, 2004, Anish Malhotra et al.
International Search Report, Cadence Design Systems, Inc., Feb. 15, 2006, International Search Report of PCT Application based on U.S. Appl. No. 11/005,148, which is related to this application.
Written Opinion of the International Searching Authority, Cadence Design Systems, Inc., Feb. 15, 2006, Written Opinion of the International Searching Authority of PCT Application based on U.S. Appl. No. 11/005,448, which is related to this application.
U.S. Appl. No. 09/733,104 (Non Final Office Action), filed Dec. 7, 2000, Teig, Non-Final Office Action mailed Oct. 27, 2003 of related application.
U.S. Appl. No. 09/733,104 (Final Office Action), filed Dec. 7, 2000, Teig, Final Office Action mailed Sep. 26, 2002, of related application.
U.S. Appl. No. 09/733,104 (Non-Final Office Action), filed Dec. 7, 2000, Teig, Non-Final Office Action mailed Jan. 3, 2002 of related application.
U.S. Appl. No. 11/005,448 (Non-Final Office Action), filed Dec. 6, 2004, Hetzel, Non-Final Office Action mailed Aug. 25, 2006, of related application.
U.S. Appl. No. 11/005,448 (Non-Final Office Action), filed Dec. 6, 2004, Hetzel, Non-Final Office Action mailed Mar. 14, 2007 of related application.
U.S. Appl. No. 11/005,316 (Non-Final Office Action), filed Dec. 6, 2004, Hetzel, Non-Final Office Action mailed Apr. 26, 2007 of related application.
U.S. Appl. No. 11/031,472 (Non-Final Office Action), filed Jan. 6, 2005, Teig, Non-Final Office Action mailed Sep. 20, 2006 of related application.
International Search Report, Sep. 2006, Cadence Design Systems, Inc., International Search Report of PCT Application PCT/US2005/019361 based on U.S. Appl. No. 11/005,316, which is related to this application.
Written Opinion of the International Searching Authority, Sep. 2006, Cadence Design Systems, Inc., Written Opinion of the International Searching Authority of PCT Application PCT/US2005/019361 based on U.S. Appl. No. 11/005,316, which is related to this application.

Affiliated with

Also associated with

Rating

Local preferred direction routing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Local preferred direction routing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Local preferred direction routing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4013911