FORMING STRUCTURES WITH BOTTOM-UP FILL TECHNIQUES

    公开(公告)号:US20230005744A1

    公开(公告)日:2023-01-05

    申请号:US17850370

    申请日:2022-06-27

    Abstract: A method of forming a structure includes supporting a substrate within a reaction chamber of a semiconductor processing system, the substrate having a recess with a bottom surface and a sidewall surface extending upwards from the bottom surface of the recess. A film is deposited within the recess and onto the bottom surface and the sidewall surface of the recess, the film having a bottom segment overlaying the bottom surface of the recess and a sidewall segment deposited onto the sidewall surface of the recess. The sidewall segment of the film is removed while at least a portion bottom segment of the film is retained within the recess, the sidewall segment of the film removed from the sidewall surface more rapidly than removing the bottom segment of the film from the bottom surface of the recess. Semiconductor processing systems and structures formed using the method are also described.

    Methods for selective deposition using a sacrificial capping layer

    公开(公告)号:US11495459B2

    公开(公告)日:2022-11-08

    申请号:US16998220

    申请日:2020-08-20

    Abstract: Methods and systems for selectively depositing a p-type doped silicon germanium layer and structures and devices including a p-type doped silicon germanium layer are disclosed. An exemplary method includes providing a substrate, comprising a surface comprising a first area comprising a first material and a second area comprising a second material, within a reaction chamber; depositing a p-type doped silicon germanium layer overlying the surface, the p-type doped silicon germanium layer comprising gallium; and depositing a cap layer overlying the p-type doped silicon germanium layer. The method can further include an etch step to remove the cap layer and the p-type doped silicon germanium layer overlying the second material.

    METHODS FOR SELECTIVE DEPOSITION OF DOPED SEMICONDUCTOR MATERIAL

    公开(公告)号:US20210118679A1

    公开(公告)日:2021-04-22

    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.

    Structures with doped semiconductor layers and methods and systems for forming same

    公开(公告)号:US12266695B2

    公开(公告)日:2025-04-01

    申请号:US18107688

    申请日:2023-02-09

    Abstract: Methods and systems for depositing material, such as doped semiconductor material, are disclosed. An exemplary method includes providing a substrate, forming a first doped semiconductor layer overlying the substrate, and forming a second doped semiconductor layer overlying the first doped semiconductor layer, wherein the first doped semiconductor layer comprises a first dopant and a second dopant, and wherein the second doped semiconductor layer comprises the first dopant. Structures and devices formed using the methods and systems for performing the methods are also disclosed.

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