eeek.  We just ventured into metal backed pcb for thermal management and it 
was new to us as well.
On the drawing with the manufacturing notes we simply added a detail named 
"Stackup Detail".  It is essentially a small pcb cross section.  It is a 
dimensioned cross section showing drill dia and depths.  Our pcb vendor 
helped us create the detail.  After all, they are the ones who needed it, so 
it made sense to ask them what they needed and how they wanted it.  They 
essentially approved it for us before we released it.
Lenny  ERG   www.ergpower.com


----- Original Message ----- 
From: "Ioan Tempea" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, April 21, 2008 11:09 AM
Subject: [TN] Metal core PCB


Dear Technos,



How should a metal core PCB be specified? I mean besides specing 1mm
thick Aluminum and 2oz Cu, what should find its place in the tech notes?



Thanks,



Ioan


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