No announcement yet.

To bug or not to bug - Min. Width for Differential Pair

  • Time
  • Show
Clear All
new posts

  • To bug or not to bug - Min. Width for Differential Pair

    Hi everyone,

    I wanted to make some tests: I set up the Min. Width on bottom layer in Differential Pair Routing rule to a lower value than previous one: 0.09 mm instead 0.23 mm.
    Everything fine.
    Then I wanted to set it up again to 0.23 mm.
    AD tells me there is an error: Some rules have incorrect definitions.
    Fixed when set up to 22.9 mm.

    Did you already have this issue?

  • #2
    22.9mm? That is even wider than my widest 'trace' of 14mm

    Which version of AD?
    The reason for me asking is that a colleague of mine recently updated to the latest 23.8.1 and had problems with sheet entries. Input sheet entries would not draw correctly when modified/added.

    Oh, and make sure that the . or , (period and comma) for your language setting are not the problem.


    • #3
      I drink too much and it makes me see the tracks wider than they are...

      But seriously speaking I don't understand the issue. I just changed the value from 0.23 mm to 0.09 mm and then back to 0.23 mm.
      AD declares an error.
      I don't think it is an issue with , or . because I made 2 times: one for DisplayPort, one for HDMI.
      And then I set it to 0.229 mm and it is OK.
      I also tried 0.2299, AD rounds it to 0.23 and triggers the same error.


      • #4
        Does it give an error in the rules editor or with the DRC?
        What happens if you set the rule to 0.25 or 0.3?