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Are there different rules for Plane Vias and Signal Vias?

Question asked by stoane on Oct 15, 2018
Latest reply on Oct 17, 2018 by stoane

Hi,

I am currently routing a design with a BGA chip. To address all the signals I am using fanout vias. Some of them are plane assigned power supply and ground vias and some of them signal assigned 'net'vias. Now I got a problem with my constraints. I can route my differential pair between two differential net assigned vias but not between two plane vias.

 

It seems that there are different rules, but I cannot find any specific rules.

Thank you!

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