- Jan 29, 2012
Wonder how the copper is holding up at the interface of the aluminum sink... Copper chloride w/aluminum poof.
Ive mentioned it three times already, but the thermal epoxies/ greases we use, only have a thermal conductivity of around 3 Wm-1K-1.
Now think of all the interfaces (not including those within the diode itself) diode:module, module:heatsink, heatsink:host! Unless these have been constructed with very, very tight tolerances your thermal grease and possibly air will be inhibiting heat flow to the host.
Direct press heat sinks, which themselves are are pressed into the host or simply direct press hosts would be much better! Think MS V1-V4, Kryton etc
Only problem is these arent particularly big hosts...So perhaps we should think about some copper versions. I wouldnt mind the tarnishing and think it could actually look really good...:beer: