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
Obviously I can’t know because I am not working at Intel, but I have done fairly large designs in state of the art design software and most of the time when I make something, we make a symbol out of it and from there on we treat that entire circuit as a black box. That’s it. Design reuse is the answer here. At some point they designed some of those circuits and a lot if manpower went into it and most likely they are simply building on top of those well designed modules. Keep in mind that once you need to change something in the inner module while upper circuits have already been designed, it’s not a big problem. Layout will need some adjustments but can be done.
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