integrated circuit vs microchip

integrated circuit and microchip both are nouns.

Word	Noun	Adjective	Verb	Adverb
integrated circuit	Yes	No	No	No
microchip	Yes	No	No	No

integrated circuit (noun)	microchip (noun)
a microelectronic computer circuit incorporated into a chip or semiconductor; a whole system rather than a single component	electronic equipment consisting of a small crystal of a silicon semiconductor fabricated to carry out a number of electronic functions in an integrated circuit