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Comment by captainbland | Hacker News Reader

For the time being I understand that the ban doesn't actually stop Huawei from using ARM chips - it stops ARM from co-operating to help them build their own chips, e.g. their Kirin line of processors. So either they could just fork their design and stop keeping in lock-step with ARM (while maintaining a level of compatibility) or just start sourcing parts from third parties.

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Not entirely true either, as the ban only applies to the US and ARM is a British company, with a Japanese parent company, so there's no conflict. They just can't use Qualcomm chips.

As for Fabs, they can't still use TSMC, Samsung, and the numerous smaller companies in mainland China.

Arm has said that they are not gonna work with Huawei.

https://www.bbc.com/news/technology-48363772

Some of the tech in ARM chips is licensed from US companies, mostly in the from of patents. Plus ARM has thousands of engineers working in the US, so some of their own tech in their CPUs will be covered by the ban as well.

Wait, why not Samsung? They're still based entirely out of South Korea, right?

There's quite a few outside of China per this list:

https://en.wikipedia.org/wiki/List_of_semiconductor_fabricat...

That's not how US sanctions work, if you want to deal with the US in any way you have to comply with their sanctions, this is why US sanctions on Iran even unilateral ones are effective.

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