I've one seen a multilayer pcb technology where they have 
water circulating inside the pcb.

Is the problem getting the heat away or 
has it to be that hot there ?

Rene


Michael Biggs wrote:
> 
> Hi all,
>         Anyone run very hot traces @ like 90 degree C on there PWBs and or
> use surface mount heat sink around the component( like a D-PAK)?
> Thanks for any response.
> I know this is a Protel questions group but everyone seem knowledgeable in
> design layout.

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