Micro Porous Ceramic Heat Sink
 

Has any tried fitting a Micro Porous Ceramic Heat Sink to hot chips like a PowerPC or the video chip on Bvision?


See this for an example.

I haven't used one but the specs already look better than a similar aluminium heat sink for QFP.
I think that air flow will put the aluminium heat sink back in favour though (just a gut feeling) if you have a fan.