Areal density rather than volumetric density will continue to be the most relevant basis for comparison as long as chips are still being fabricated on wafers wi

Areal density rather than volumetric density will continue to be the most relevant basis for comparison as long as chips are still being fabricated on wafers with a fixed total area. Flash memory has been 3D for years but the important density measurement correlated to cost is still Gbit/mm^2.