NOVELTY - System comprises: chamber that comprises many compartments in common vacuum ambient in it; at least one shutter screen removably separating each of many compartments; at least one transfer tool configured to transfer substrate (1310) from one compartment to another without breaking common vacuum ambient, where the substrate is optically transparent and has lateral dimension of 1 m or greater for solar module and at least some of many compartments are configured to subject substrate to at least one thin film processes to form copper-rich copper-indium composite material.    USE - The system is useful: for large scale manufacture of thin film photovoltaic cells (claimed) comprising feed forward control; and for in-situ monitoring of physical, electrical and optical properties of the thin films.    ADVANTAGE - The system: allows formation of junction between window layer and absorber layer without breaking vacuum; prevents contaminating substrate from moisture, particles, and oxygen; controls various diagnostic tools disposed in-situ in systems and formation of absorber layer and window layer.    DETAILED DESCRIPTION - System comprises: a chamber that comprises many compartments in a common vacuum ambient in it; at least one shutter screen removably separating each of the many compartments; at least one transfer tool configured to transfer a substrate (1310) from one compartment to another without breaking the common vacuum ambient, where the substrate is optically transparent and has a lateral dimension of 1 m or greater for a solar module and at least some of the many compartments are configured to subject the substrate to at least one thin film processes to form a copper-rich copper-indium composite material overlying the substrate and at least one of the many compartments is configured to subject the copper-rich copper-indium composite material to a thermal process to form a chalcogenide structured material.    DESCRIPTION OF DRAWING(S) - The figure shows a simplified view diagram of the system with single-chamber configuration for large scale manufacture of thin film photovoltaic devices.    Sulfur bearing species (1308)    Substrate (1310)    Electrode layer (1320)    Copper-bearing layer (1330)    Indium layer (1340)