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nradovtoday at 5:39 PM1 replyview on HN

IBM Z series mainframe Telum CPUs are designed by IBM but manufactured by Samsung. IBM no longer owns any fabs. I assume they have some kind of technology licensing deal.

https://www.ibm.com/products/z/telum


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ac29today at 5:58 PM

> IBM no longer owns any fabs

Per IBM: "IBM Research at Albany [...] includes more than 100,000 square feet of semiconductor fabrication space"

I guess that is technically a R&D fab not a production one, but they definitely have in house fabrication capability

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