Techniques and device structures based upon directional dielectric deposition and bottom-up fill

    公开(公告)号:US11459652B2

    公开(公告)日:2022-10-04

    申请号:US17072143

    申请日:2020-10-16

    Abstract: Embodiments herein include void-free material depositions on a substrate (e.g., in a void-free trench-filled (VFTF) component). In some embodiments, a method may include providing a plurality of device structures extending from a base, each of the plurality of device structures including a first sidewall opposite a second sidewall and a top surface extending between the first and second sidewalls, and providing a seed layer over the plurality of device structures. The method may further include forming a dielectric layer along just the top surface and along an upper portion of the first and second sidewalls using an angled deposition delivered to the plurality of device structures at a non-zero angle of inclination relative to a perpendicular extending from an upper surface of the base, and forming a fill material within one or more trenches defined by the plurality of device structures.

    CHEMICAL VAPOR CONDENSATION DEPOSITION OF PHOTORESIST FILMS

    公开(公告)号:US20220262625A1

    公开(公告)日:2022-08-18

    申请号:US17574370

    申请日:2022-01-12

    Abstract: Embodiments disclosed herein include methods of depositing a metal oxo photoresist using chemical vapor condensation deposition processes. In an example, a method for forming a photoresist layer over a substrate in a vacuum chamber includes providing a metal precursor vapor into the vacuum chamber from an ampoule maintained at a first temperature. The method further includes providing an oxidant vapor into the vacuum chamber, where a reaction between the metal precursor vapor and the oxidant vapor results in the formation of the photoresist layer on a surface of the substrate. The photoresist layer is a metal oxo containing material. The substrate is maintained at a second temperature less than the first temperature during the formation of the photoresist layer on the surface of the substrate.

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