BJTs vs. MOSFETs – Usage in Modern Integrated Circuits


On modern integrated circuits, are there as much BJT's on the chip as MOSFET transistor? If not, why?

Best Answer

It is very dependent on the circuit. See this reply on details why one would use one over the other:

When is a MOSFET more appropriate as a switch than a BJT?

For discrete transistors there are advantages to each. When we talk about ICs and VLSI systems the MOSFET is the device of choice because of the simpler manufacturing process and the fact that they are easier to miniaturize.