These are all under the transistor umbrella, but when people say “transistor”, they usually mean BJT, and when people say “FET”, they usually mean “MOSFET”. You can imagine a FET as a ...

In this module on MOSFETs (metal-oxide-semiconductor field-effect transistors), we cover the following topics: History of the development of MOSFETs, Device structure, Device types, Circuit symbols, ...