Metric · Memory & Storage
Layer count
The number of stacked wordline planes in a 3D NAND device, the headline density metric for each generation. Production has moved from 32 layers around 2014 to well over 200 layers today.
- Also known as
- Tier count
- Type
- Metric
- Domain
- Memory & Storage, NAND flash
Notes
Vendors count layers differently, including or excluding dummy and select layers, so a quoted number is partly a marketing figure.
Related terms
Part of the Memory & Storage glossary, with every term in the topic and the lifecycles, tools and standards that use them.
Where it appears on the Hub
Used on 3 pages of the Hub. In each group, the pages that mention it most come first.
Lifecycle stages and gates
Skills
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Last reviewed: not yet reviewed in depth. Entry last updated . The full glossary