1. Just finished a design, updated the stack up by refreshing materials.
2. Re-enetered the thickness's required for each layer (dielectric and conductor).
All the routes that I have a 50 Ohm constraints on the bottom layer have DRC's, while the routes on the top do not.
The stackup is symetrical.
Both top and botom traces are 6 mil traces, Parastic calculator shows top traces are 49.2 Ohm, bottom traces are 59.8 Ohm (impedance). The capacitance
The Xscetion table predicts 5.8 mil wide trace as 50.05 on both top and bottom.
Very confused, any suggestions?
Attached are pictures of the stck up, parastic calculation and cline width information.