Bill,

If you have a lot of heat to dissipate and/or want a rigid board to act as the mounting surface for some other component, insulated metal substrates such as this can work nicely.

Watch your thermal conductivity numbers, however.  The electrical insulator is also the thermal isolator.....

Watch out for quality of the thick film printing, and make sure the conductive used will meet whatever leach resistance and adhesion requirements you may need to have for rework, etc. [I say this not so much because I doubt their capability, but rather that everyone's rework approach is slightly different and that the product type may require something out of the ordinary].

Steve Creswick


-----Original Message-----
From: Brooks,Bill [mailto:[log in to unmask]]
Sent: Thursday, January 13, 2005 2:08 PM
To: [log in to unmask]
Subject: [TN] Aluminum substrates... any issues?


I ran across this supplier of aluminum boards and was interested if any of
you have dealt with this type of thing before? I have seen metal core boards
made with alumina and bonded with the fiberglass/epoxy for heat sinking
needs but this looks like a different process. Possibly less expensive...
???

http://www.irctt.com/pdf_files/thickfilm_aluminum.pdf

Any comments on it are appreciated.

Best regards,

Bill Brooks - KG6VVP
PCB Design Engineer , C.I.D.+, C.I.I.
Tel: (760)597-1500 Ext 3772 Fax: (760)597-1510
e-mail:[log in to unmask]
http://www.dtwc.com
http://pcbwizards.com

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