[PCB_FORUM] Constraint Region

  • From: "Gary MacIndoe" <gemcad@xxxxx>
  • To: "icu-pcb-forum" <icu-pcb-forum@xxxxxxxxxxxxx>
  • Date: Fri, 25 Sep 2009 14:43:50 -0600

Hey guys,

I'm still trying to get a handle on the new way to use constraints in 16.2.
Back in 15.7, in order to control the breakout of a BGA, I used to create an 
unfilled shape on the B.G./Constraints layer, then give it a Net Physical set 
that would control necking and lesser spacing to like traces.

So in 16.2, how do you guys control the typically loose rules in the breakout 
area around a BGA?
Thanks for any help with this.

Regards,
Gary MacIndoe

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