Re: This is actually kinda cool
The heat generated is mainly related to the write power.
Projection allows smaller volumes of phase-change material, because it limits the high resistance-state of the cell.
Smaller volumes of phase-change material lead to a reduction in write power and thus in a reduction of heat generated.
So, it may be that a memory cell design with a projection layer generates less heat than one without a projection layer. - Wabe W. Koelmans