Die size 2063x1635 µm.
Used back in the days when you built CPU's from TTL chips. Some still do it though : https://www.homebrewcpuring.org/
I hope one day I will have enough time to build one...
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With metal etched:
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Used back in the days when you built CPU's from TTL chips. Some still do it though : https://www.homebrewcpuring.org/
I hope one day I will have enough time to build one...

With metal etched:
