ISOTROPIC SILICON NITRIDE REMOVAL

    公开(公告)号:US20210111033A1

    公开(公告)日:2021-04-15

    申请号:US16598167

    申请日:2019-10-10

    IPC分类号: H01L21/311

    摘要: Exemplary methods of etching a silicon-containing material may include flowing a fluorine-containing precursor into a remote plasma region of a semiconductor processing chamber. The fluorine-containing precursor may be characterized by a molecular formula of XFy, and y may be greater than or equal to 5. The methods may include forming a plasma within the remote plasma region to generate plasma effluents of the fluorine-containing precursor. The methods may include flowing the plasma effluents into a processing region of the semiconductor processing chamber. A substrate may be positioned within the processing region, and the substrate may include a trench formed through stacked layers including alternating layers of silicon nitride and silicon oxide. The methods may include laterally etching the layers of silicon nitride.

    Self-selective multi-terminal memtransistor for crossbar array circuits

    公开(公告)号:US12022667B2

    公开(公告)日:2024-06-25

    申请号:US17521347

    申请日:2021-11-08

    摘要: This disclosure describes a self-selective multi-terminal memtransistor suitable for use in crossbar array circuits. In particular, the memtransistor comprises a sapphire substrate that has a single-layer of polycrystalline molybdenum disulphide (MoS2) thin film formed on the surface of the substrate, wherein the MoS2 thin film comprise MoS2 grains that are oriented along terraces provided on the surface of the substrate. The memtransistor has a drain electrode and a source electrode that is formed on the MoS2 thin film such that a channel is defined in the MoS2 thin film between the drain and source electrodes, and a gate electrode formed above the channel, whereby the gate electrode is isolated from the channel by a gate dielectric layer.

    Self-Selective Multi-Terminal Memtransistor for Crossbar Array Circuits

    公开(公告)号:US20220149115A1

    公开(公告)日:2022-05-12

    申请号:US17521347

    申请日:2021-11-08

    IPC分类号: H01L27/24 G11C13/00 H01L45/00

    摘要: This disclosure describes a self-selective multi-terminal memtransistor suitable for use in crossbar array circuits. In particular, the memtransistor comprises a sapphire substrate that has a single-layer of polycrystalline molybdenum disulphide (MoS2) thin film formed on the surface of the substrate, wherein the MoS2 thin film comprise MoS2 grains that are oriented along terraces provided on the surface of the substrate. The memtransistor has a drain electrode and a source electrode that is formed on the MoS2 thin film such that a channel is defined in the MoS2 thin film between the drain and source electrodes, and a gate electrode formed above the channel, whereby the gate electrode is isolated from the channel by a gate dielectric layer.