Basically the title. I was reading about how we will eventually reach a limit on the number of transistors we can place on a chip and will have to turn to quantum computing in the far future. So why not just make bigger chips to accommodate more transistors?
In: 3
When designing a chip, there are mostly three goals:
1) speed – the whole chip needs to finish working before the clock changes
2) efficiency&heat – electricity produce heat, which is a waste of energy=money, and also too much heat can be problematic to the chip.
3) noney – at the end of the day its a business, and the make business choices (for example, silicone isnt the physical best choice for transistors, but its the cheapest easiest choice)
When it comes to your question, its mainly the first two. Spreading the transistions too far apart physically will make the electricity “flow” slower through the chip. Also, spreading them apart will create a bigger space to cool down, and will take more power.
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