semiconductor unit vs semiconductor device

semiconductor unit and semiconductor device both are nouns.

Word	Noun	Adjective	Verb	Adverb
semiconductor unit	Yes	No	No	No
semiconductor device	Yes	No	No	No

As nouns, semiconductor unit and semiconductor device are synonyms defined as:

semiconductor unit and semiconductor device: a conductor made with semiconducting material

Other synonyms of semiconductor unit include semiconductor.

semiconductor unit (noun)	semiconductor device (noun)
a conductor made with semiconducting material	a conductor made with semiconducting material