Home > Community > Forums > Digital Implementation > Signal Integrity analysis in SOC Encounter

Email

* Required Fields

Recipients email * (separate multiple addresses with commas)

Your name *

Your email *

Message *

Contact Us

* Required Fields
First Name *

Last Name *

Email *

Company / Institution *

Comments: *

 Signal Integrity analysis in SOC Encounter 

Last post Tue, Mar 5 2013 11:10 AM by Kari. 3 replies.
Started by trav1s 08 Sep 2011 01:12 AM. Topic has 3 replies and 3032 views
Page 1 of 1 (4 items)
Sort Posts:
  • Thu, Sep 8 2011 1:12 AM

    • trav1s
    • Not Ranked
    • Joined on Mon, Mar 7 2011
    • Posts 3
    • Points 30
    Signal Integrity analysis in SOC Encounter Reply

    Hello Cadence community.

    Our foundry provides a 150nm process, and our designs are not high-speed by any means. They have not provided a noise library for use with SOC Encounter v9.12 (.cdb or .udn). I have tried to create a cdb file using the make_cdb utility, but there seems to be a major version problem with our spice model file, so I have not had any success with that.

    I would like some advice as to what I should do. I know noise analysis plays a bigger role the smaller the process geometry is, but should noise be a concern in 150nm? Our foundry has provided other data files for the Cadence flow, so is the fact that they omitted a noise library a sign that it is not necessary? Is the Liberty timing library (.lib) enough?

    • Post Points: 20
  • Mon, Jan 16 2012 11:17 AM

    • Kari
    • Top 10 Contributor
    • Joined on Tue, Jul 15 2008
    • Cary, NC
    • Posts 693
    • Points 14,395
    Re: Signal Integrity analysis in SOC Encounter Reply

     We never worried about SI at 130nm and above, but it did come back to haunt us in one 130nm project. I would say at 150nm you don't need to worry about it too much. Set the nanoroute variables for avoiding SI just to be safe; it will make sure you don't have too many long parallel routes.

    • Post Points: 20
  • Tue, Feb 12 2013 2:45 AM

    • Arslan
    • Top 500 Contributor
    • Joined on Mon, Dec 10 2012
    • Posts 36
    • Points 510
    Re: Signal Integrity analysis in SOC Encounter Reply

     Hi, what about designing in 28nm process. what is the format or extention of SI libs. or how to generate them?

    • Post Points: 20
  • Tue, Mar 5 2013 11:10 AM

    • Kari
    • Top 10 Contributor
    • Joined on Tue, Jul 15 2008
    • Cary, NC
    • Posts 693
    • Points 14,395
    Re: Signal Integrity analysis in SOC Encounter Reply
    the library vendor should deliver .cdb files for the std cells.
    • Post Points: 5
Page 1 of 1 (4 items)
Sort Posts:
Started by trav1s at 08 Sep 2011 01:12 AM. Topic has 3 replies.