Method and apparatus for filling a gap

    公开(公告)号:US11107676B2

    公开(公告)日:2021-08-31

    申请号:US16827506

    申请日:2020-03-23

    Abstract: There is provided a method of filling one or more gaps by providing the substrate in a reaction chamber and introducing a first reactant to the substrate with a first dose, thereby forming no more than about one monolayer by the first reactant on a first area; introducing a second reactant to the substrate with a second dose, thereby forming no more than about one monolayer by the second reactant on a second area of the surface, wherein the first and the second areas overlap in an overlap area where the first and second reactants react and leave an initially unreacted area where the first and the second areas do not overlap; and, introducing a third reactant to the substrate with a third dose, the third reactant reacting with the first or second reactant remaining on the initially unreacted area.

    ATOMIC LAYER DEPOSITION OF SILICON CARBON NITRIDE BASED MATERIAL

    公开(公告)号:US20200126788A1

    公开(公告)日:2020-04-23

    申请号:US16720863

    申请日:2019-12-19

    Inventor: Viljami Pore

    Abstract: A process for depositing a silicon carbon nitride film on a substrate can include a plurality of complete deposition cycles, each complete deposition cycle having a SiN sub-cycle and a SiCN sub-cycle. The SiN sub-cycle can include alternately and sequentially contacting the substrate with a silicon precursor and a SiN sub-cycle nitrogen precursor. The SiCN sub-cycle can include alternately and sequentially contacting the substrate with carbon-containing precursor and a SiCN sub-cycle nitrogen precursor. The SiN sub-cycle and the SiCN sub-cycle can include atomic layer deposition (ALD). The process for depositing the silicon carbon nitride film can include a plasma treatment. The plasma treatment can follow a completed plurality of complete deposition cycles.

    Atomic layer deposition of silicon carbon nitride based materials

    公开(公告)号:US10515794B2

    公开(公告)日:2019-12-24

    申请号:US16254417

    申请日:2019-01-22

    Inventor: Viljami Pore

    Abstract: A process for depositing a silicon carbon nitride film on a substrate can include a plurality of complete deposition cycles, each complete deposition cycle having a SiN sub-cycle and a SiCN sub-cycle. The SiN sub-cycle can include alternately and sequentially contacting the substrate with a silicon precursor and a SiN sub-cycle nitrogen precursor. The SiCN sub-cycle can include alternately and sequentially contacting the substrate with carbon-containing precursor and a SiCN sub-cycle nitrogen precursor. The SiN sub-cycle and the SiCN sub-cycle can include atomic layer deposition (ALD). The process for depositing the silicon carbon nitride film can include a plasma treatment. The plasma treatment can follow a completed plurality of complete deposition cycles.

    Method and apparatus for filling a gap

    公开(公告)号:US10177025B2

    公开(公告)日:2019-01-08

    申请号:US15222749

    申请日:2016-07-28

    Inventor: Viljami Pore

    Abstract: A method and apparatus for filling one or more gaps created during manufacturing of a feature on a substrate by: providing a bottom area of a surface of the one or more gaps with a first reactant; providing a second reactant to the substrate; and, allowing the first reactant to initiate reaction of the second reactant in the bottom area of the surface in a stoichiometric ratio of one molecule of the first reactant to multiple molecules of the second reactants leaving a top area of the surface of the one or more gaps which was not provided with the first reactant initially substantially empty.

    Si PRECURSORS FOR DEPOSITION OF SiN AT LOW TEMPERATURES

    公开(公告)号:US20180151344A1

    公开(公告)日:2018-05-31

    申请号:US15703241

    申请日:2017-09-13

    Abstract: Methods and precursors for depositing silicon nitride films by atomic layer deposition (ALD) are provided. In some embodiments the silicon precursors comprise an iodine ligand. The silicon nitride films may have a relatively uniform etch rate for both vertical and the horizontal portions when deposited onto three-dimensional structures such as FinFETS or other types of multiple gate FETs. In some embodiments, various silicon nitride films of the present disclosure have an etch rate of less than half the thermal oxide removal rate with diluted HF (0.5%).

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