3 ms·
An estimate on cooling potential: https://arstechnica.com/science/2020/09/researchers-demonstrate-in-chip-water-cooling/ https://arstechnica.com/science/2020/09
by fwip 6y ago
An estimate on cooling potential: https://arstechnica.com/science/2020/09/researchers-demonstrate-in-chip-water-cooling/ https://arstechnica.com/science/2020/09/researchers-demonstr...
> The best design they found is able to handle heat fluxes up to 1,700 watts per square centimeter.
This was not a 3-dimensional chip, of course, but it might give a ballpark figure for the heat transfer we could achieve with nanofluidics. The article and paper authors take care to point out that this was effectively a "toy" example, with the circuit designed to be easy to cool.
- jandrese 6y agoTiny chip, HUUUUGE heatsink. Assuming a similar chip size to what we currently use that would be 3.4kW of heat you need to dissipate from a tiny 2cm^2 contact patch. Some sort of liquid cooling would probably be necessary, just to move the heat fast enough to avoid melting the package.
- Robotbeat 6y agoYeah, 17MW/m^2 is on the same order of magnitude as the heat flux in a regeneratively cooled (ie liquid cooled) rocket engine. You’re going to need fluid cooling of some sort. https://mobile.twitter.com/wikkit/status/1311308147617927175 https://mobile.twitter.com/wikkit/status/1311308147617927175
- fwip 6y agoProbably, people aren't going to have a 3.4kW computer running in their home. That's 2-3 beefy space heaters running.