US Patent 11705354 Substrate handling systems

An apparatus for transferring a substrate is disclosed herein. More specifically, the apparatus relates to substrate handling systems used in semiconductor device manufacturing, and more particularly, to substrate handling systems having a substrate handler with enclosed moving elements and increased compatibility with post-CMP cleaning modules. The apparatus includes one or more indexing assemblies. Each of the indexing assemblies including an enclosure, an actuator assembly disposed within the enclosure, and two handling blades disposed outside of the disclosure. Each of the two blades are moveable in either of a translational or a rotating manner.