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> a lack of freedom

> ~300nm feature size

Can you point to a specific regulation that prevents me from crafting shitty semiconductors in my shed? I am pretty sure there are entire YouTube channels dedicated to this.

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I think it's less any regulation and more the lack of products to facilitate it. The guys rolling their own from scratch on youtube weren't anywhere near 300 nm last I checked.
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There are plenty of products to facilitate small-scale semiconductor manufacture: university nanofabs all over the world have them.

You can, too, without much/any paperwork... if you have the funds.

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> I am pretty sure there are entire YouTube channels dedicated to this.

There is: https://www.youtube.com/@Dr.Semiconductor

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IP laws. You personally might be able to do this. But should you attempt to sell a device that makes it easy for anyone to do, you will get sued into oblivion.

There's a big difference.

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