In semiconductor manufacturing, every step of the process depends on highly automated equipment. From wafer loaders, photolithography steppers/scanners, and wet benches to etching systems, CMP polishers, gas delivery modules, and vacuum degassers (photoresist de-bubbling units), these machines are connected via Ethernet and industrial control protocols, forming a vast internal network — the fab’s digital nervous system. However, this intra-fab connectivity also means shared r