MMIC has almost the same technology with RFIC circuits.They are produced with IC techniques and standards.Processes are just different.
MIC is a bit old fashion technique and it's generally used for thin or thick film pretty integrated hybrid circuits.But it is absoultely not an integrated circuit because it consists of very small thin or thick film resistors,semiconductors ( transistors,diodes etc. ) are bonded to laminate or PCB,some components are lumped some are distributed etc. It's a kind of hybrid technology...