Inter-Electrode Gap Variation Methods for Compensating Deposition Non-Uniformity

    公开(公告)号:US20180144903A1

    公开(公告)日:2018-05-24

    申请号:US15860547

    申请日:2018-01-02

    Inventor: Fayaz Shaikh

    Abstract: Methods and systems for depositing material layers with gap variation between film deposition operations. One method includes depositing a material layer over a substrate. The depositing is performed in a plasma chamber having a bottom electrode and a top electrode. The method includes providing a substrate over the bottom electrode in the plasma chamber. The method sets a first gap between the bottom and top electrodes and performs plasma deposition to deposit a first film of the material layer over the substrate while the first gap is set between the bottom and top electrodes. The method then sets a second gap between the bottom a top electrodes and performs plasma deposition to deposit a second film of the material layer over the substrate while the second gap is set between the bottom and top electrodes. The material layer is defined by the first and second films and the first gap is varied to the second gap to offset expected non-uniformities when depositing the first film followed by the second film.

    Gas shower device, chemical vapor deposition device and method

    公开(公告)号:US09945031B2

    公开(公告)日:2018-04-17

    申请号:US14742408

    申请日:2015-06-17

    CPC classification number: C23C16/45565 C23C16/45574

    Abstract: A gas shower device, a device and a method for chemical vapor deposition. A gas shower device has a showerhead. The showerhead includes a center region and a periphery region surrounding the center region; the center region and periphery region of the showerhead have a plurality of second gas-outlets which are arranged in parallel; the second gas-outlets are used to output the second gas; a first gas-outlet arranged between two adjacent second gas-outlets, includes the first sub-gas-outlet located in the center region and the second sub-gas-outlet located in the periphery region; the first sub-gas-outlet and the second sub-gas-outlet are mutually isolated, the first sub-gas-outlet is used to output the first gas and the second sub-gas-outlet is used to output the second gas; a first gas channel is connected to the first sub-gas-outlet; a second gas channel is connected to the second gas-outlet and the second sub-gas-outlet. The film formation quality is improved by using the chemical vapor deposition device with the gas shower device.

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