APPARATUS AND METHODS FOR REDUCING CROSS-CONTAMINATION IN CVD SYSTEMS

    公开(公告)号:US20190249306A1

    公开(公告)日:2019-08-15

    申请号:US16259285

    申请日:2019-01-28

    Abstract: Apparatus and methods are provided for reducing cross-contamination between deposition operations during the fabrication of heterojunction cells. An apparatus includes the substrate carrier including a plurality of pockets, and the carrier mask defining the openings that are sized and positioned in correspondence to the pockets of the substrate carrier. The substrate carrier carries a plurality of substrates into an i-layer deposition chamber and a p-layer deposition chamber. The substrate carrier is masked by the carrier mask during deposition of a p-layer. In-situ film mask layer can be used with or without the carrier mask. The in-situ film mask layer is formed of SiN or SiNO and can be deposited over the p-layer. The p-layer is a p-type nanocrystalline SiOx layer formed from a combination of SiH4, B2H6, H2 or CO2. A single substrate carrier can be repeatedly used for sequential deposition of an i-layer and a p-layer without cross contamination.

    ASSEMBLED GRID TRAY
    3.
    发明公开
    ASSEMBLED GRID TRAY 审中-公开

    公开(公告)号:US20230260811A1

    公开(公告)日:2023-08-17

    申请号:US18024318

    申请日:2021-08-18

    CPC classification number: H01L21/6734 H01L31/1876

    Abstract: An assembled grid tray is disclosed, comprising a frame for holding multiple substrate trays to form a larger tray for use in a semiconductor processing tool. The frame may be comprised of two outer frame members that hold one or more of the trays, each with a magnet rail use with a maglev system. The frame may be further comprised of an inner frame member positioned between the outer frame members, which may also include a magnet rail, with the frame members being held in position by one or more outer beam members. The frame members may be fabricated of a material having a similar thermal expansion to trays to be placed in the frame.

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