[sdiy] Aluminium PCBs

[Electronic Battle]

> I was running a quote through PCB Cart and got curious about their 
> "special" PCBs. I can find little to no information on the Aluminium Base 
> PCBs. I guess my first question is why?


Maybe they meant to say "alumina" instead - meaning aluminium oxide ceramic 
as a dielectric which is very low loss and thus suitable for high frequency 
design (tens of GHz).  Alumins is good at higher temperatures where it still 
has low loss whereas plastics (e.g. Teflon chopped fibre and the like) gets 
more lossy with rising temperature.

EB