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 Limit distance from line to antipad from Autoroute? 

Last post Mon, May 12 2008 10:13 PM by archive. 1 replies.
Started by archive 12 May 2008 10:13 PM. Topic has 1 replies and 1012 views
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  • Mon, May 12 2008 10:13 PM

    • archive
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    Limit distance from line to antipad from Autoroute? Reply

    Hi,

    I am trying autoroute the first time and pretty new to Allegro. The cline generated by autoroute are all touching the antipad. Is there a simple way to adjust, say, the line have to be at least 8 mil away from the antipad or in some case, mid point between two antipad?

    I know that it is possible to set constrain area and defind them at individual area but are there a more general setting? Using 15.1.

    Thanks.


    Originally posted in cdnusers.org by Lordman
    • Post Points: 0
  • Tue, May 13 2008 5:01 AM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
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    RE: Limit distance from line to antipad from Autoroute? Reply

    Hi,
    There is no setting for cline to antipad. clearances are copper to copper. You can try to adjust your cline to pad clearance or
    reduce the size of the antipad. I would check with my fab house before just reducing the size. There is a setting in the gloss commands in the autorouter to center lines.
    In version 16.0 Allegro XL there is a check for trace over void which checks for this type of thing.
    Unless this is a high speed impedance controlled board some trace over hang shouldn't be a problem.
    Here is another post on this same subject. http://www.cdnusers.org/Forums/tabid/52/forumid/5/postid/8004/view/topic/Default.aspx

    Regards,
    BillZ
    EMA Design Automation


    Originally posted in cdnusers.org by BillZ_EMA
    • Post Points: 0
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Started by archive at 12 May 2008 10:13 PM. Topic has 1 replies.