[PCB_FORUM] Re: Negative Shapes: via voiding

Didn't autovoid die with dynamic shapes?

>>> jean.bratton@xxxxxxxxxxxxxx 29/10/2004 7:54:43 a.m. >>>
What happens if you run autovoid on the negative plane, just as you
would
have done on a positive static (or pre-auto-generated) shape? You would
have
to re-do it every time you moved a via (or at least once when you
think
you're done) but I'm guessing it might do what you want...
Jean

-----Original Message-----
From: richard moffat [mailto:richard.moffat@xxxxxxxxxxxxxxxxxxx] 
Sent: Thursday, October 28, 2004 2:45 PM
To: icu-pcb-forum@xxxxxxxxxxxxx 
Subject: [PCB_FORUM] Negative Shapes: via voiding

Hi

Hoping this hasn't been asked before:

I have set a NET_SPACING_TYPE on a negative shape (plane) to meet
isolation requirements.  The via-to-shape and pin-to-shape spacing
rules
are not being followed.

According to Cadence, the via antipad has priority.  Can I force the
shape to follow the NET_SPACING_TYPE rule?  

(I don't want a positive shape; I think it would kill my design since
it has 22000 vias.)

Cheers,
Richard

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