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PCM to Micron is an existing product/design that is NOR-Flash like but utilizes PC material as the storage medium. 3D XPoint is said to be able to stack the st
by mattthebaker 8y ago
PCM to Micron is an existing product/design that is NOR-Flash like but utilizes PC material as the storage medium.
3D XPoint is said to be able to stack the storage medium on the die and requires no access transistor -- which "PCM" has. So it is based on PC material but has some new kind of selector.
The 3D/stacking part is important for scaling/density -- even NAND-Flash has hit 2d limits and gone vertical.