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MoroseDelight t1_ixghgct wrote

Reply to comment by HoboHash in TSMC Racing to 1nm, Investing $32 Billion for Fab: Report by brohymn80

Silicon atoms are 0.21 nm across.

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csrak t1_ixgjkm1 wrote

That's the bond length between silicon atoms in a crystal, the theoretical thickness of a single layer of silicon atoms is about 0.14 nm.

But real thickness depends on the stacking layers and is kind of arbitrary at this scale.

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