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.

    LAYER FORMING METHOD
    76.
    发明申请

    公开(公告)号:US20210313182A1

    公开(公告)日:2021-10-07

    申请号:US17350281

    申请日:2021-06-17

    Abstract: There is provided a method of forming a layer, comprising depositing a seed layer on the substrate and depositing a bulk layer on the seed layer. Depositing the seed layer comprises supplying a first precursor comprising metal and halogen atoms to the substrate; and supplying a first reactant to the substrate. Depositing the bulk layer comprises supplying a second precursor comprising metal and halogen atoms to the seed layer and supplying a second reactant to the seed layer.

    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.

Patent Agency Ranking