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Technology Stocks : Semi Equipment Analysis
SOXX 298.01-0.5%Dec 15 4:00 PM EST
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To: Donald Wennerstrom who wrote (76584)8/4/2017 12:17:02 PM
From: Sam1 Recommendation

Recommended By
Donald Wennerstrom

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Flash fryers have burger problems: You can't keep adding layers ... and shrinking cells.
So, how about a double string-stacked 64-layer 3D with cheese?

By Chris Mellor 3 Aug 2017 at 09:03


How many layers are too many?

Backgrounder The flash foundry folk took on 3D NAND because it provided an escape hatch from the NAND scaling trap of ever-decreasing cell sizes eventually to non-functioning flash.

But 3D NAND, the layering of many 2D planar NAND chip structures, will run into its own problems.

These are to do with wafer production time and yield, and layer-crossing component positioning.

continues at theregister.co.uk
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