METHODS AND APPARATUS FOR PROCESSING A SUBSTRATE

    公开(公告)号:US20230017383A1

    公开(公告)日:2023-01-19

    申请号:US17375654

    申请日:2021-07-14

    摘要: Methods and apparatus for processing a substrate are provided. For example, a method includes sputtering a material from a target in a PVD chamber to form a material layer on a layer comprising a feature of the substrate, the feature having an opening width defined by a first sidewall and a second sidewall, the material layer having a greater lateral thickness at the top surface of the layer than a thickness on the first sidewall or the second sidewall within the feature, depositing additional material on the layer by biasing the layer with an RF bias at a low power, etching the material layer from the layer by biasing the layer with an RF bias at a high-power, and repeatedly alternating between the low power and the high-power at a predetermined frequency.

    METHOD OF DEPOSITING LAYERS
    9.
    发明申请

    公开(公告)号:US20230122969A1

    公开(公告)日:2023-04-20

    申请号:US18067415

    申请日:2022-12-16

    摘要: Embodiments disclosed herein generally relate to methods of depositing a plurality of layers. A doped copper seed layer is deposited in a plurality of feature definitions in a device structure. A first copper seed layer is deposited and then the first copper seed layer is doped to form a doped copper seed layer, or a doped copper seed layer is deposited directly. The doped copper seed layer leads to increased flowability, reducing poor step coverage, overhang, and voids in the copper layer.

    METHOD OF DEPOSITING LAYERS
    10.
    发明申请

    公开(公告)号:US20210118729A1

    公开(公告)日:2021-04-22

    申请号:US17036038

    申请日:2020-09-29

    摘要: Embodiments disclosed herein generally relate to methods of depositing a plurality of layers. A doped copper seed layer is deposited in a plurality of feature definitions in a device structure. A first copper seed layer is deposited and then the first copper seed layer is doped to form a doped copper seed layer, or a doped copper seed layer is deposited directly. The doped copper seed layer leads to increased flowability, reducing poor step coverage, overhang, and voids in the copper layer.