[PCB_FORUM] Re: Coaxial vias

Hello John

No takers on this, huh?  If you mean what I think you mean, it's pretty 
specialised.  

Just a couple of ideas:

Define the 'Non-standard drill' padstacks as "Other".  Then at least the drill 
chart will show it and the holes will be in a separate drill file.

For the actual physical placement you could have one pad/pin inside another.  
You can still route to the inside pin.  Your netlist check and DRC will reject 
it (will see shorts) but I can't see another way around it.

You will need careful documentation to show what you want done with the "Other" 
drills.

Hope this helps.

Cheers,
Richard


__________________________
Richard Moffat
PCB Specialist Engineer
Allied Telesis Labs
ph. +64 (3) 3393000
richard.moffat@xxxxxxxxxxxxxxxxxxx


>>> "Smith, John R" <john.r.smith@xxxxxxxxx> 9/05/2008 3:44 a.m. >>>
Has anybody used a coaxial via in Allegro? Can anybody share with me how
I might create these in Allegro? 

Thanks

John


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