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is multi-level DRAM worth considering? storing multiple voltage levels per DRAM capacitor?
by DoctorOetker 4mo ago
is multi-level DRAM worth considering? storing multiple voltage levels per DRAM capacitor?
- pixelesque 4mo agoIf you care about only capacity and cost yes, but not if you care about performance.
- Dylan16807 4mo agoCan you back that up with anything about semi-recent nodes? The voltages are so fragile that I'm not convinced you would actually save space once you adjust the design to handle more levels.
- dist-epoch 4mo agoIf it were possible, it would have been done already. The issue is the capacitors are already tiny, and barely can prevent a single bit decaying before refresh.
- DoctorOetker 4mo agodo you have a reference to exact / realistic scaling laws for the leakage currents as function of capacitor/dielectric dimensions and access transistor dimensions? using 4 (or 2^N) voltage levels stores 2 (or N) bits, so we can afford to make the structures larger why would this approach make sense for NAND flash but not DRAM?
- dist-epoch 4mo ago[flagged]