SELECTIVE DEPOSITION OF SIOC THIN FILMS

    公开(公告)号:US20210134586A1

    公开(公告)日:2021-05-06

    申请号:US17064865

    申请日:2020-10-07

    Abstract: Methods for selectively depositing silicon oxycarbide (SiOC) thin films on a dielectric surface of a substrate relative to a metal surface without generating significant overhangs of SiOC on the metal surface are provided. The methods can include at least one plasma enhanced atomic layer deposition (PEALD) cycle including alternately and sequentially contacting the substrate with a silicon precursor, a first Ar and H2 plasma, a second Ar plasma and an etchant.

    Sulfur-containing thin films
    124.
    发明授权

    公开(公告)号:US10854444B2

    公开(公告)日:2020-12-01

    申请号:US16773635

    申请日:2020-01-27

    Abstract: In some aspects, methods of forming a metal sulfide thin film are provided. According to some methods, a metal sulfide thin film is deposited on a substrate in a reaction space in a cyclical process where at least one cycle includes alternately and sequentially contacting the substrate with a first vapor-phase metal reactant and a second vapor-phase sulfur reactant. In some aspects, methods of forming a three-dimensional architecture on a substrate surface are provided. In some embodiments, the method includes forming a metal sulfide thin film on the substrate surface and forming a capping layer over the metal sulfide thin film. The substrate surface may comprise a high-mobility channel.

    Methods for forming semiconductors by diffusion

    公开(公告)号:US10141189B2

    公开(公告)日:2018-11-27

    申请号:US15394571

    申请日:2016-12-29

    Abstract: In some embodiments, a compound semiconductor is formed by diffusion of semiconductor species from a source semiconductor layer into semiconductor material in a substrate. The source semiconductor layer may be an amorphous or polycrystalline structure, and provides a source of semiconductor species for later diffusion into the other semiconductor material. Advantageously, such a semiconductor layer may be more conformal than an epitaxially grown, crystalline semiconductor layer. As a result, this more conformal semiconductor layer acts as a uniform source of the semiconductor species for diffusion into the semiconductor material in the substrate. In some embodiments, an interlayer is formed between the source semiconductor layer and the substrate, and then the interlayer is trimmed before depositing the source semiconductor layer. In some other embodiments, the source semiconductor layer is deposited directly on the substrate, and has an amorphous or polycrystalline structure.

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