Patent ID: 8268734

Claim:
A method for transferring a substrate, comprising: loading at least one substrate into one or more mobile transverse chambers, the one or more mobile transverse chambers being carried on a rail positioned adjacent to two or more process modules, wherein each of the one or more mobile transverse chambers is configured to independently maintain a specified gas condition; actuating one or more drive systems to propel the one or more mobile transverse chambers along the rail; docking a respective mobile transverse chamber of the one or more mobile transverse chambers to a respective process module of the two or more process modules; and conveying a respective substrate from the respective mobile transverse chamber to the respective process module, wherein: the step of conveying the substrate further comprises: supporting the respective substrate on a substrate holder; and moving the substrate holder between a retracted position and an extended position; and a pulley and belt system moves the substrate holder between the retracted and extended positions.