Multi-zone gas distribution systems and methods

    公开(公告)号:US12148597B2

    公开(公告)日:2024-11-19

    申请号:US18168467

    申请日:2023-02-13

    Abstract: The present technology includes improved gas distribution designs for forming uniform plasmas during semiconductor processing operations or for treating the interior of semiconductor processing chambers. While conventional gas distribution assemblies may receive a specific reactant or reactant ratio which is then distributed into the plasma region, the presently described technology allows for improved control of the reactant input distribution. The technology allows for separate flows of reactants to different regions of the plasma to offset any irregularities observed in process uniformity. A first precursor may be delivered to the center of the plasma above the center of the substrate/pedestal while a second precursor may be delivered to an outer portion of the plasma above an outer portion of the substrate/pedestal. In so doing, a substrate residing on the pedestal may experience a more uniform etch or deposition profile across the entire surface.

    Particle coating methods and apparatus

    公开(公告)号:US12146217B2

    公开(公告)日:2024-11-19

    申请号:US17590614

    申请日:2022-02-01

    Abstract: A reactor for coating particles includes a vacuum chamber configured to hold particles to be coated, a vacuum port to exhaust gas from the vacuum chamber via the outlet of the vacuum chamber, a chemical delivery system configured to flow a process gas into the particles via a gas inlet on the vacuum chamber, one or more vibrational actuators located on a first mounting surface of the vacuum chamber, and a controller configured to cause the one or more vibrational actuators to generate a vibrational motion in the vacuum chamber sufficient to induce a vibrational motion in the particles held within the vacuum chamber.

    Replacement contact process
    98.
    发明授权

    公开(公告)号:US12142534B2

    公开(公告)日:2024-11-12

    申请号:US17194825

    申请日:2021-03-08

    Abstract: Processing methods may be performed to expose a contact region on a semiconductor substrate. The methods may include selectively removing a first region of a silicon material between source/drain regions of a semiconductor substrate to expose a first region of oxide material. The methods may include forming a liner over the first region of oxide material and contacting second regions of the silicon material proximate the source/drain regions of the semiconductor substrate. The methods may also include selectively removing the second regions of the silicon material proximate the source/drain regions of the semiconductor substrate to expose a second region of the oxide material. The methods may further include selectively removing the second region of the oxide material from a surface of a contact in the semiconductor structure.

    Polishing system apparatus and methods for defect reduction at a substrate edge

    公开(公告)号:US12138732B2

    公开(公告)日:2024-11-12

    申请号:US17121467

    申请日:2020-12-14

    Abstract: Embodiments herein include carrier loading stations and methods related thereto which may be used to beneficially remove nano-scale and/or micron-scale particles adhered to a bevel edge of a substrate before polishing of the substrate. By removing such contaminates, e.g., loosely adhered particles of dielectric material, from the bevel edge, contamination of the polishing interface can be avoided thus preventing and/or substantially reducing scratch related defectivity associated therewith.

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