High-frequency circuit on Al PCB

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parklol

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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.
 
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