Hi Ralph,
We have built some product using the CB100 for thermal management.
Testing is still being performed by our customer to quantify results
of the silver-filled, copper-filled and siver/copper-filled flavors
for their particular application. However, as John pointed out, it
definitely will offer some aid in this regard and may very well help
out in yours. We see it primarily used for via-in-pad, both surface
mount and bga, to free up the real estate that would normally be
needed for vias and the routing to them. The thermal benefits are
simply an added bonus.
Hope this helps...Andy Slade
______________________________ Reply Separator _________________________________
Subject: Re: [TN] Thermallly conductive PWB materials
Author: John Laur <[log in to unmask]> at SMTPLink-Hadco
Date: 07/01/98 9:08 AM
Ralph,
I have some info on a screenable polymer thick film paste for pluging vias
for thermal conductivity. I have never used the materilal. It is from
DuPont Electronoc Materials. Thermal conductivity is spec'd at 5.23W/m/K.
CB100 CONDUCTIVE VIA PLUG
If your interested send me your fax number.
John Laur
Rockwell Automation
Milwaukee, WI
"Vaughan, Ralph H" <[log in to unmask]> on 07/01/98 07:41:51 AM
Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please respond
to "Vaughan, Ralph H" <[log in to unmask]>
To: [log in to unmask]
cc: (bcc: John C Laur/Milwaukee/RA/Rockwell)
Subject: [TN] Thermallly conductive PWB materials
Dear PWB fab guys,
Can you provide any news, good or bad, on material used in boards to
help move heat away from hot parts? We have tried the standard methods
of leaving unused copper in the board rather than etching it away, and
using thermal pads under the parts, but my designers think they need
more thermal conduction through the pwb. If anyone has any experience
with the thermally conductive pre-pregs, or any other similar material,
I would appreciate your thoughts.
thanks
Ralph Vaughan
Boeing-Atlanta
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