The node size do not correspond to a given dimension of a structure anymore, it'... | Hacker News

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		eleitl on July 9, 2015 \| parent \| context \| favorite \| on: IBM says it has made working versions of 7nm chips The node size do not correspond to a given dimension of a structure anymore, it's computed property, from area of a given standard cell (e.g. SRAM cell).

Dylan16807 on July 9, 2015 [–]

That's informative but doesn't disagree. It's not a 1:1 correspondence but it's a pretty close correlation to the actual widths of things.

brilee on July 9, 2015 | [–]

silicon is diamond cubic; 0.54 nm corresponds to 8/sqrt(3) radiuses worth. So the diameter of silicon is 0.23nm, and 7nm = ~30 silicon atoms across.

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