Planes can cause problems with passives, but it’s not just planes. Uneven traces — a big one on one side and a little one on the other side — can cause just about as many problems too.
The scenario in the image above can do a lot of damage to manufacturability and reliability.The problems get worse as the parts get smaller. You can end up with a cold solder joint on the right side or tombstoning. And cold solder joints are worse than cold oatmeal.
Duane Benson
Planes can hurt, but what about Euclids?
So what is the solution? A wider trace for a short length on the other side of the passive?
Thanks