High-frequency circuit on Al PCB

[parklol]

Hi there, I am wondering if it is possible to build a buck or boost converter on an Aluminum PCB. I know the switch frequency of these kind of converters could go up to like 1M Hz. I don`t know if the impedance of the Al PCB could be high enough so that there will not be current leakage or any other sort of chaos happening.

Thank you.

 

[parklol]

To clear up, the Aluminum based PCB would be like this: https://zbpcb2008.en.made-in-china.com/product/VBQERMjYJAki/China-Aluminium-Based-PCB.html