METHOD FOR FORMATION OF CONFORMAL ALD SIO2 FILMS

    公开(公告)号:US20230416909A1

    公开(公告)日:2023-12-28

    申请号:US18336157

    申请日:2023-06-16

    CPC classification number: C23C16/402 C23C16/045

    Abstract: Embodiments of the disclosure provide a method of forming a dielectric film in trenches of a substrate. The utilization of the ALD process and introduction of an inhibitor material onto features defining the trenches and into the trenches provides for suppression of forming the dielectric film near the top surface of the features in the trenches. The dielectric film is formed via an ALD process. The ALD process includes sequentially exposing the substrate to an inhibitor material, a first precursor, a purge gas, an oxygen-containing precursor, and the purge gas during an ALD cycle, and repeating the ALD cycle to deposit the dielectric film.

Patent Agency Ranking