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| 3dnand-case.md [2026/05/18 16:58] – [Variable steps] gauthier.roussilhe.ext | 3dnand-case.md [2026/05/18 16:59] (current) – [Variable steps] gauthier.roussilhe.ext | ||
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| ## Process steps count | ## Process steps count | ||
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| ### Fixed steps | ### Fixed steps | ||
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| * Deposition: 60 | * Deposition: 60 | ||
| * CMP: 6 | * CMP: 6 | ||
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| ### Variable steps | ### Variable steps | ||
| - | The total number of process steps depends of the number of layers on the 3D NAND die. Each layer adds 4 process steps (ONON). The repeating steps for each layer are: | + | The total number of process steps depends of the number of layers on the 3D NAND die. Each layer adds 6 process steps (ONON). The repeating steps for each layer are: |
| * x | * x | ||
| * x | * x | ||
| * x | * x | ||
| * x | * x | ||