[sdiy] Aluminium PCBs

[cheater cheater]

What's this 'loss' thing?

Nick: do you think that they would be good for oscillators, to
maintain thermal inertia?

D.

On Thu, Mar 26, 2009 at 9:01 PM, Electronic Battle
<electronicbattle at googlemail.com> wrote:
>> 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
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