Old idea, used by the car industry up and then. They searched for a possibility to put the circuitry directly on the chassis, but it seemed impractical, so it wasn't successful. We experimented some 20 years ago with anodized aluminium and thickfilm, but the firing temperatures for silver and gold prints were too  high. Apparently, your house found a solution on that problem.

Another interesting idea,which is focused upon now, is SiC spraying on metal sheets. Withstands very high firing temperatures. SiC on pure Moly ought to withstand anything. The IMAPS folk ought to know about that...

Ingemar Hernefjord
Ericsson Microwave Systems

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Brooks,Bill
Sent: den 13 januari 2005 20:08
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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