HALOGEN-FREE ETCHING OF SILICON NITRIDE

    公开(公告)号:US20240404837A1

    公开(公告)日:2024-12-05

    申请号:US18203404

    申请日:2023-05-30

    Abstract: Methods of semiconductor processing may include providing a hydrogen-containing precursor to a processing region of a semiconductor processing chamber. A substrate may be disposed on a substrate support within the processing region. A layer of silicon-and-nitrogen-containing material may be disposed on the substrate. The methods may include forming plasma effluents of the hydrogen-containing precursor. The methods may include contacting the layer of silicon-and-nitrogen-containing material with plasma effluents of the hydrogen-containing precursor. The contacting may etch a portion of the layer of silicon-and-nitrogen-containing material.

    BORON NITRIDE FOR MASK PATTERNING

    公开(公告)号:US20220384189A1

    公开(公告)日:2022-12-01

    申请号:US17330013

    申请日:2021-05-25

    Abstract: Exemplary deposition methods may include delivering a boron-containing precursor and a nitrogen-containing precursor to a processing region of a semiconductor processing chamber. The methods may include providing a hydrogen-containing precursor with the boron-containing precursor and the nitrogen-containing precursor. A flow rate ratio of the hydrogen-containing precursor to either of the boron-containing precursor or the nitrogen-containing precursor may be greater than or about 2:1. The methods may include forming a plasma of all precursors within the processing region of the semiconductor processing chamber. The methods may include depositing a boron-and-nitrogen material on a substrate disposed within the processing region of the semiconductor processing chamber.

    CARBON HARDMASK OPENING USING BORON NITRIDE MASK

    公开(公告)号:US20240014039A1

    公开(公告)日:2024-01-11

    申请号:US17861691

    申请日:2022-07-11

    CPC classification number: H01L21/0332 H01L21/0335 H01L21/0337 H01L21/0338

    Abstract: Exemplary semiconductor processing methods may include providing an oxygen-containing precursor to a processing region of a semiconductor processing chamber. The methods may include forming a plasma of the oxygen-containing precursor to produce oxygen-containing plasma effluents. The methods may include contacting a substrate housed in the processing region with the oxygen-containing plasma effluents. The substrate may include a boron-and-nitrogen-containing material overlying a carbon-containing material. The boron-and-nitrogen-containing material comprises a plurality of openings. The methods may include etching the carbon-containing material.

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