modules is that by using a sealed and clear plastic case around the memory chips, the case can be filled with a non-conductive liquid, such as 3M Novec/Fluorinert that we have seen in custom PCs and server cooling. These chemicals, basically long chain hydrocarbons with funny bits on the end, are liquid at room temperature but can eventually change state into a gas and rise. That state change can absorb a lot of energy being produced, and as long as the energy is removed and the chemicals become liquid again by cooling down, the liquid forms a convection current and in essence, a heat pump.