Wafer Transportation
    2.
    发明公开

    公开(公告)号:US20230395415A1

    公开(公告)日:2023-12-07

    申请号:US17832605

    申请日:2022-06-04

    CPC classification number: H01L21/67724 H01L21/6773 H01L21/67733 B65G17/12

    Abstract: System and method for cross-fab wafer transportation are provided. An exemplary system includes a first control unit coupled to an associated first automatic material handling system (AMHS), the first AMHS includes a first overhead transport (OHT) track comprising a first portion and a first vehicle movable along the first OHT track and carrying a container, the container is operable to carry semiconductor wafers therein. The system includes a second control unit coupled to an associated second AMHS, the second AMHS includes a second OHT track comprising a second portion adjacent to the first portion and a second vehicle movable along the second OHT track. When the first vehicle is within the first portion of the first OHT track and the second vehicle is within the second portion of the second OHT track, the first and second vehicles are operable to transfer the container directly from the first vehicle to the second vehicle.

    RAIL SYSTEM FOR WAFER TRANSPORTATION
    3.
    发明公开

    公开(公告)号:US20230416994A1

    公开(公告)日:2023-12-28

    申请号:US17849038

    申请日:2022-06-24

    CPC classification number: E01B25/24 B65G17/20 H01L21/67733 B65G2201/0297

    Abstract: The present disclosure provides a method to install a rail assembly according to different rail plans. A method according to the present disclosure includes assembling an overhead raceway module that includes a plurality of first level raceways extending along a first direction, and a plurality of second level raceways extending along a second direction perpendicular to the first direction, each of the plurality of second level raceways being fastened to the plurality of first level raceways, raising the overhead raceway module adjacent to a ceiling, installing the overhead raceway module to the ceiling, and fastening a rail assembly to the plurality of second level raceways, the rail assembly extending lengthwise along the first direction. A width of the overhead raceway module along the second direction is at least three times a width of the rail assembly along the second direction.

    PAYLOAD TRANSPORTATION SYSTEM
    6.
    发明公开

    公开(公告)号:US20240021456A1

    公开(公告)日:2024-01-18

    申请号:US18194428

    申请日:2023-03-31

    Abstract: System and method for cross-fab wafer transportation are provided. A method includes providing a first FAB building and a second FAB building connected via a bridging area, the second FAB building comprising fabrication tools configured to perform fabrication processes different than fabrication processes performed by fabrication tools in the first FAB building, after performing fabrication processes in the first FAB building, configuring a first vehicle of the first FAB building to travel along a first OHT track and take the wafer to the bridging area, configuring a second vehicle of the second FAB building to travel along a second OHT track and arrive at the bridging area, where a portion of the first OHT is in parallel with a portion of the second OHT track at the bridging area, when some predetermined conditions are met, configuring the first vehicle to transfer the wafer to the second vehicle.

    AUTOMATED MATERIAL HANDLING SYSTEM (AMHS) RAIL METHODOLOGY

    公开(公告)号:US20220348415A1

    公开(公告)日:2022-11-03

    申请号:US17484973

    申请日:2021-09-24

    Abstract: A system and method for rail management of an overhead transport (“OHT”) system of an associated automated material handing system (“AMHS”) that includes a controller in communication with the OHT system, including vehicles traveling on rails of the OHT. The rail management system also includes a turntable located on a portion of the OHT and equipped with a set of fixed rails. Upon receipt of a request to rotate the turntable from a first run-through direction to a second run-through direction, the controller engages at least one stopper sensor located near the turntable. The controller then directs the turntable to rotate from the first run-through direction to the second run-through direction. After completion, the controller disengages the at least one stopper to enable vehicles to travel directly in the second run-through direction.

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