Reply to post: Still confused

Another dimension, new galaxy. Intergalactic planar-tary: Join us on our 3D NAND journey

Anonymous Coward
Anonymous Coward

Still confused

Does this mean there is a hole being etched to connect every cell?

Why not run the select lines horizontally and vertically within each layer as per 2D flash, then etch only a small number of holes for layer-selection and to combine the outputs of each layer? With fewer holes you can allow a larger die area per hole, giving a greater margin for error when stacking more layers.

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