Microcircuit ƙaramin da'ira ne na lantarki wanda galibi akan haɗa shi akan ƙaramin guntu ko semiconductor. Microcircuits sun ƙunshi ƙananan abubuwa kamar transistor, capacitors, da resistors, kuma ana amfani da su a cikin na'urorin lantarki iri-iri, gami da kwamfutoci, wayoyin hannu, da kayan aikin likita. Ana kiran microcircuits a matsayin haɗaɗɗiyar da'irori ko microchips, kuma sun canza masana'antar lantarki ta hanyar ba da izinin ƙirƙirar ƙananan na'urori masu ƙarfi da lantarki.