Hey all,

Was wondering if the copper weight for a 4-Layer PCB is the same as that of a 2-layer. Are all 4 layers 2oz copper or just the top and bottom only ? Is it standard to have the internal layers connected with via for high current application designs ?

 

Are your sure the default top and bottom layers are 2 oz? Who's the board house?

 

Depends on the capabilities of the PCB house.
https://jlcpcb.com/capabilities/Capabilities

https://resources.altium.com/p/the-extreme-importance-of-pc-board-stack-up-rick-hartley

It's all about the manipulation and control of energy.

 

Thank you. The talk is a ton of info.