SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME

    公开(公告)号:US20220013715A1

    公开(公告)日:2022-01-13

    申请号:US16985206

    申请日:2020-08-04

    Abstract: A method for fabricating semiconductor device includes the steps of forming a magnetic tunneling junction (MTJ) stack on a substrate, performing an etching process to remove the MTJ stack for forming a MTJ, performing a deposition process to form a polymer on a sidewall of the MTJ, and removing the polymer to form a rough surface on the sidewall of the MTJ. Preferably, the MTJ could include a pinned layer on the substrate, a barrier layer on the pinned layer, and a free layer on the barrier layer, in which the rough surface could appear on sidewall of the pinned layer, sidewall of the barrier layer, and/or sidewall of the free layer.

    SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME

    公开(公告)号:US20250072294A1

    公开(公告)日:2025-02-27

    申请号:US18946936

    申请日:2024-11-14

    Abstract: A method for fabricating semiconductor device includes the steps of forming a magnetic tunneling junction (MTJ) stack on a substrate, performing an etching process to remove the MTJ stack for forming a MTJ, performing a deposition process to form a polymer on a sidewall of the MTJ, and removing the polymer to form a rough surface on the sidewall of the MTJ. Preferably, the MTJ could include a pinned layer on the substrate, a barrier layer on the pinned layer, and a free layer on the barrier layer, in which the rough surface could appear on sidewall of the pinned layer, sidewall of the barrier layer, and/or sidewall of the free layer.

    Semiconductor device and method for fabricating the same

    公开(公告)号:US12178136B2

    公开(公告)日:2024-12-24

    申请号:US18239119

    申请日:2023-08-28

    Abstract: A method for fabricating semiconductor device includes the steps of forming a magnetic tunneling junction (MTJ) stack on a substrate, performing an etching process to remove the MTJ stack for forming a MTJ, performing a deposition process to form a polymer on a sidewall of the MTJ, and removing the polymer to form a rough surface on the sidewall of the MTJ. Preferably, the MTJ could include a pinned layer on the substrate, a barrier layer on the pinned layer, and a free layer on the barrier layer, in which the rough surface could appear on sidewall of the pinned layer, sidewall of the barrier layer, and/or sidewall of the free layer.

    SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME

    公开(公告)号:US20230403942A1

    公开(公告)日:2023-12-14

    申请号:US18239119

    申请日:2023-08-28

    CPC classification number: H10N50/01 H10B61/22 H10N50/80 H10N50/85

    Abstract: A method for fabricating semiconductor device includes the steps of forming a magnetic tunneling junction (MTJ) stack on a substrate, performing an etching process to remove the MTJ stack for forming a MTJ, performing a deposition process to form a polymer on a sidewall of the MTJ, and removing the polymer to form a rough surface on the sidewall of the MTJ. Preferably, the MTJ could include a pinned layer on the substrate, a barrier layer on the pinned layer, and a free layer on the barrier layer, in which the rough surface could appear on sidewall of the pinned layer, sidewall of the barrier layer, and/or sidewall of the free layer.

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