Material or article handling – Apparatus for charging a load holding or supporting element...
Patent
1997-04-14
1999-11-09
Bucci, David A.
Material or article handling
Apparatus for charging a load holding or supporting element...
414281, 414940, B65G 100
Patent
active
059801832
ABSTRACT:
An integrated intrabay buffer, delivery, and stocker system including a pair of shuttles, capable, by themselves, of transferring a pod in an X-Z plane between the interbay transport system, the I/O ports of various process tools and a plurality of storage shelves provided along the wall of the tool bay. Advantageously, the present invention integrates together the process tools within a tool bay by providing a single transport mechanism shared by each tool, and by providing a single, large storage and buffer area for pods that is shared by each tool. This increases reliability and flexibility, and simplifies the hardware and software control. Additionally, the storage shelves may be provided above some or all of the process tools within the tool bay. Such an arrangement offers a substantially greater number of spaces to store a pod as compared to conventional tool bays. Moreover, as the space above processing tools is currently unused, in part because a clear, unobstructed path above the I/O ports of the processing tools must be available in conventional systems, the increased storage capacity according to the present invention may be provided without increasing the footprint of conventional tool bays.
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Asyst Technologies, Inc.
Bucci David A.
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