this post was submitted on 23 Dec 2023
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176
Firm predicts it will cost $28 billion to build a 2nm fab and $30,000 per wafer, a 50 percent increase in chipmaking costs as complexity rises (www.tomshardware.com)
submitted 10 months ago by [email protected] to c/[email protected]
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Firm predicts it will cost $28 billion to build a 2nm fab and $30,000 per wafer, a 50 percent increase in chipmaking costs as complexity rises::As wafer fab tools are getting more expensive, so do fabs and, ultimately, chips. A new report claims that

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[–] [email protected] 4 points 10 months ago (3 children)

I didn't think the ~5nm limit could be broke due to quantum tunneling.

[–] [email protected] 16 points 10 months ago

The nm number is just the smallest part on the waffer. It's not actually the transistor.

[–] [email protected] 9 points 10 months ago (1 children)

This was my understanding as well: That beyond ~7nm the reliability begins to lose value because the diameter of an electron 'orbit' or whatever becomes a factor.

Admittedly I'm not an expert. But my understanding was that to break this limitation and keep Moore's law were kinda leaning into quantum computation to eventually fill the incoming void.

[–] [email protected] 5 points 10 months ago

The reason you mean is quantum tunneling. Essentially, at that small a scale an electron can 'teleport' outside of the system, which is obviously a big nono for computing.

[–] [email protected] 7 points 10 months ago

They solved this problem by making the nanometer bigger.

https://en.m.wikipedia.org/wiki/5_nm_process