Method and apparatus for detecting nets physically changed...

Details Method and apparatus for detecting nets physically changed... Method and apparatus for detecting nets physically changed...

2007-01-23

2007-01-23

Do, Thuan (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

C716S030000

Reexamination Certificate

active

10914921

ABSTRACT:
A method for detecting nets physically changed and electrically affected by a design ECO includes steps as follows. An ECO is executed on an IC design to produce a post-ECO IC design. A first group of nets of the IC design physically changed by the ECO is identified by comparing a pre-ECO database with a post-ECO database. A pre-ECO design SPEF file of the IC design is parsed with a script to identify a second group of nets in the pre-ECO database based on the first group of nets, the second group of nets being coupled to the first group of nets. The second group of nets is pre-ECO electrically affected nets. Parasitics for the first group of nets in the post-ECO database are extracted to generate a parasitic data file for the first group of nets. The parasitic data file is parsed with the script to identify a third group of nets in the post-ECO database based on the first group of nets, the third group of nets being coupled to the first group of nets. The third group of nets is post-ECO electrically affected nets. Finally, a file listing the first group of nets, the second group of nets and the third group of nets is generated.

REFERENCES:
patent: 6360350 (2002-03-01), Gabele et al.
patent: 6463574 (2002-10-01), Culetu et al.
patent: 6530073 (2003-03-01), Morgan
patent: 6601222 (2003-07-01), Mehrotra et al.
patent: 6631510 (2003-10-01), Betz et al.

Affiliated with

Also associated with

Rating

Method and apparatus for detecting nets physically changed... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for detecting nets physically changed..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting nets physically changed... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3803308