with way better 45-degree or 90-degree for routing?

[vadim888]

Hi all,

Can anyone explain to me, what is better 45 or 90 degree for IC design?

Thanks.

 

[bsprajc]

Not sure if it applies to IC design but for PCB, 45 is better then 90 as 90 will emit more EMI at high signal rates, at least this is what I have been told.

 

[MSLayout]

For low voltage signals a 90 degree route is fine. For high voltage layers a 45 is a must.

 

[fredd]

45 degrees, if you don't have layout area constraint.