Methods for selective deposition of doped semiconductor material

    公开(公告)号:US11637014B2

    公开(公告)日:2023-04-25

    申请号:US17064041

    申请日:2020-10-06

    Abstract: Methods and systems for selectively depositing material, such as doped semiconductor material, are disclosed. An exemplary method includes providing a substrate, comprising a first area comprising a first material and a second area comprising a second material, selectively depositing a first doped semiconductor layer overlying the first material relative to the second material and selectively depositing a second doped semiconductor layer overlying the first doped semiconductor layer relative to the second material.

    METHOD OF FORMING STRUCTURES INCLUDING A VANADIUM OR INDIUM LAYER

    公开(公告)号:US20230078233A1

    公开(公告)日:2023-03-16

    申请号:US17989081

    申请日:2022-11-17

    Abstract: Methods and systems for depositing vanadium and/or indium layers onto a surface of a substrate and structures and devices formed using the methods are disclosed. An exemplary method includes using a cyclical deposition process, depositing a vanadium and/or indium layer onto the surface of the substrate. The cyclical deposition process can include providing a vanadium and/or indium precursor to the reaction chamber and separately providing a reactant to the reaction chamber. The cyclical deposition process may desirably be a thermal cyclical deposition process. Exemplary structures can include field effect transistor structures, such as gate all around structures. The vanadium and/or indium layers can be used, for example, as barrier layers or liners, as work function layers, as dipole shifter layers, or the like.

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