Most components on a CPU are transistors but other components are also needed. A diode is made from either a PN junction or a metal semiconductor junction with a suitable level of doping in the semiconductor. A capacitor can be made up of two conducti

Other components like diodes, resistors, capacitors and inductors etc will also be needed in a CPU.

For your question, the answer is, there are always some other eletronic components. Here are some examples: 1.Internal bypass capacitors: Actually these can be made just from transistor gates, but they are often also made in the metal layers. 2.ESD protec

If you mean the whole chip, then you might have any number of analog components: diodes for temperature measurement, analog to digital converters and so on.

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