My question is if you take any model desktop CPU such as the ones manufactured by Intel would the design of the memory bus span multiple layers of a single die or would it be contained on a single layer ? I'm assuming that if the memory bus spans multiple layers on die the CPU cores themselves also will span multiple layers also. Please feel free to correct this understanding.
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Individual layers on a die provide specific things like power, wiring (often in only one direction) or transistors. For a component to exist on a single layer it would have to be composed only of power lines, only of unpowered transistors not connected by wires, etc.
Any complicated (or even not complicated) component of a CPU will use all or nearly all layers.
answered Dec 29, 2021 at 1:43
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\$\begingroup\$ Thank you @user1850479. Would you be able to clarify whether a CPU Core be considered a complicated component therefore it should span nearly all layers of the die ? \$\endgroup\$– JoeTCommented Dec 29, 2021 at 15:35
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\$\begingroup\$ Thank you @user1850479 What about the memory bus will this component span multiple layers in order to interface with a Core ? \$\endgroup\$– JoeTCommented Dec 29, 2021 at 15:43
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\$\begingroup\$ @JoeT Does your CPU contain transistors? If so, see above. \$\endgroup\$ Commented Dec 29, 2021 at 16:53
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\$\begingroup\$ user1850479@ yes it does thank you. \$\endgroup\$– JoeTCommented Dec 30, 2021 at 1:03