Stocker apparatus with increased input/output capacity

摘要

Within both a stocker apparatus and a method for operating the stocker apparatus there is employed: (1) a minimum of six input/output ports; (2) an array of storage locations for storing an array of work in process (WIP) product units; and (3) a random access transportation means for transporting a work in process (WIP) product unit at least bidirectionally between the minimum of six input/output ports and a storage location within the array of storage locations. Within the stocker apparatus and the method, the minimum of six input/output ports provides for more efficient operation of the stocker apparatus.