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TE BE (or not) TE BE
Cryst - AMoron
Phase change memory cells can, well, change, over time. Once set in their crystalline or amorphous phases the material can drift towards the other state rendering the cell's resistance level less clear and weakening its ability to story a binary one or zero. PCM (Phase-Change Memory) is one of the candidate persistent storage …
"How this projection happens is not explained."
See, there are these little elfs that live in a hollow tree, and they spend all day and all night making phase-change cookies that they stack up outside of the tree. Sometimes the chocolate chips they use are very sweet, sometimes they are very bitter, but one never knows which until a cookie is bitten and tasted. It's magic. Elfin, cookie-making magic.
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
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