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United Kingdom
4 Posts

Posted - 07 Jul 2023 :  14:38:50  Show Profile  Reply with Quote
I have set (Settings) the pad-to-pad and Track-to-pad spacings to 10 thou. My measured gap is 33 thou for pad to pad so I need a spacing of 23 thou. DRC says gap is 33 needs to be 60. Where does the extra 37 thou come from?

Edited by - pwsmall on 07 Jul 2023 14:47:18


United Kingdom
763 Posts

Posted - 07 Jul 2023 :  15:10:15  Show Profile  Visit edrees's Homepage  Reply with Quote
Sorry, don't fully understand where you are coming from. Where does the " I need a spacing (of what?) of 23 thou" come from?

Is there a spacing of 60 thou listed in your (Spacing) Settings table,(might give a clue)? Have you specified an additional "Guard Spacing" for this particular track?

37+33 =70

Edited by - edrees on 07 Jul 2023 15:11:53
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United Kingdom
4 Posts

Posted - 07 Jul 2023 :  15:21:29  Show Profile  Reply with Quote
To ecrees fm Peter Small.
Yes - I had omitted a global (0v) guard spacing of 50 thou. Thank you very much!
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