If there are billions of transistors in a CPU, there is no chance that somebody designed every single one of them manually. Is their layout calculated or something?
In: 1270
Cut and paste. You are either laying out multiple copies that do the same thing (memory, cache, cores, etc…) or you are copying an architecture from another design whose logic has already been worked out and tweaking it for a new size.
Chips are also designed by teams, not individuals. It’s not different than any complex machine like a space shuttle or an aircraft carrier.
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