• Skip to main content
  • Skip to search
  • Skip to footer
Cadence Home
  • This search text may be transcribed, used, stored, or accessed by our third-party service providers per our Cookie Policy and Privacy Policy.

  1. Community Forums
  2. Custom IC Design
  3. fixed capacitance and variable capacitance in cadence.

Stats

  • Locked Locked
  • Replies 4
  • Subscribers 126
  • Views 15215
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

fixed capacitance and variable capacitance in cadence.

imagesensor123
imagesensor123 over 13 years ago

 Hi,

    when i use "captab" function to print out the node capacitance, i found there are two kinds of capacitors, can anybody explain the difference between them? is there a skill function which can monitor  a node capacitance time to time? in fact, i have a column of transistor whose source was connected  together.in a simple word, is that the node capacitance (connect ten source together) equal to ten times of the capacitance of only one soure ?

regards,

zfeng

  • Cancel
Parents
  • Quek
    Quek over 13 years ago

    Hi zfeng

    I think it really depends on the design and if there is a need do so. I don't really monitor node capacitances myself. To monitor the change in node during a transient run, please use "infotimes" together with captab function. Please search for "infotimes" in $CDSHOME/doc/anasimhelp/anasimhelp.pdf.


    Best regards
    Quek

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Reply
  • Quek
    Quek over 13 years ago

    Hi zfeng

    I think it really depends on the design and if there is a need do so. I don't really monitor node capacitances myself. To monitor the change in node during a transient run, please use "infotimes" together with captab function. Please search for "infotimes" in $CDSHOME/doc/anasimhelp/anasimhelp.pdf.


    Best regards
    Quek

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Children
No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.

© 2025 Cadence Design Systems, Inc. All Rights Reserved.

  • Terms of Use
  • Privacy
  • Cookie Policy
  • US Trademarks
  • Do Not Sell or Share My Personal Information