How copper thickness in the substrate (or PCB) affects electrically?

[ichthus]

Hi,

As i know, thicker copper thickness will have
- lower resistance and inductance
- lower impedance
- lower return loss
- higher current capacity
- better heat dissipation

What else does copper thickness affects a substrate or PCB electrically?

Thanks!!

 

[marce]

Harder to etch thin routes, fine features.
Inductance is also related to PCB stack up.

You cannot take copper thickness on its own, the choice of copper thickness has to be considered in conjuction with the rest of the PCB design requirements.
What are you wanting to define or relate copper thickness to.