[time-nuts] newbie question Thunderbolt supply
Michael Tharp
gxti at partiallystapled.com
Mon Aug 27 14:19:30 UTC 2012
On 08/27/2012 10:09 AM, Jerry wrote:
> Are these thermal pads temp conductive or insulative? If you want heat
> dissipation why not use the readily available thermal grease used for
> semiconductor mounting? Cheap and not really messy if applied correctly
A layer of Kapton (polyimide) tape would be electrically insulating but
still conduct heat well enough for this application. You could then put
a thermal pad under that and not have to worry about it being conductive
or (I think) capacitative. I'd prefer the pad to the grease because the
bottom of a PCB has lots of pointy bits that would keep the plane of the
PCB spaced away from the plate, and thermal grease is not very effective
as a filler material. It would also be springy enough to maintain
contact with the bottom of the PCB.
I'm still not entirely sure this is a good idea though, seems like a
low-temp oven for the whole tbolt would be better if you want thermal
stability.
-- m. tharp
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