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Russia Says It's Assembled a Lithography Machine, Will Make 350nm Chips Soon
(www.extremetech.com)
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this post was submitted on 31 May 2024
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Yeah, those old fabs are still useful. Here's what Microchip Technology Inc runs:
https://ww1.microchip.com/downloads/en/DeviceDoc/00004075.pdf
See page 6.Their fab in Lawrence, MA only goes down to 1000nm. Their other locations go down to 250 or 110nm. IIRC, some of that is the auto industry refusing to port things off of old chips, but the point is that you can do a lot of useful stuff with horribly outdated fabs.