SHALLOW TRENCH ISOLATION PROCESSING WITH LOCAL OXIDATION OF SILICON

    公开(公告)号:US20220367444A1

    公开(公告)日:2022-11-17

    申请号:US17503877

    申请日:2021-10-18

    Abstract: A method of manufacturing an electronic device includes forming a shallow trench isolation (STI) structure on or in a semiconductor surface layer and forming a mask on the semiconductor surface layer, where the mask exposes a surface of a dielectric material of the STI structure and a prospective local oxidation of silicon (LOCOS) portion of a surface of the semiconductor surface layer. The method also includes performing an oxidation process using the mask to oxidize silicon in an indent in the dielectric material of the STI structure and to grow an oxide material on the exposed LOCOS portion of the surface of the semiconductor surface layer.

    SHALLOW TRENCH ISOLATION PROCESSING WITH LOCAL OXIDATION OF SILICON

    公开(公告)号:US20250120169A1

    公开(公告)日:2025-04-10

    申请号:US18982600

    申请日:2024-12-16

    Abstract: A method of manufacturing an electronic device includes forming a shallow trench isolation (STI) structure on or in a semiconductor surface layer and forming a mask on the semiconductor surface layer, where the mask exposes a surface of a dielectric material of the STI structure and a prospective local oxidation of silicon (LOCOS) portion of a surface of the semiconductor surface layer. The method also includes performing an oxidation process using the mask to oxidize silicon in an indent in the dielectric material of the STI structure and to grow an oxide material on the exposed LOCOS portion of the surface of the semiconductor surface layer.

Patent Agency Ranking