성막 방법, 플라즈마 성막 장치 및 기억 매체
    41.
    发明公开
    성막 방법, 플라즈마 성막 장치 및 기억 매체 有权
    膜形成方法,等离子体膜形成装置和储存介质

    公开(公告)号:KR1020080090559A

    公开(公告)日:2008-10-08

    申请号:KR1020087021299

    申请日:2007-02-09

    Abstract: Provided is a technology of embedding a recessed section formed on the surface of a subject to be processed, such as a semiconductor wafer (W), especially a fine hole or a trench having a diameter or a width of 100nm or less, only by plasma sputtering, with a metal, especially copper. A film forming step of depositing a small quantity metal film in the recessed section and a diffusion step of moving the deposited metal film toward the bottom section of the recessed section are alternately performed plurality of times. In the film forming step, bias power to be applied to a placing table for supporting the wafer (W) is set so that on the surface of the wafer (W), the deposition rate of the metal deposition generated due to metal particle drawing is substantially balanced with the etching rate of sputter etching generated by plasma. In the diffusion step, the wafer (W) is maintained at a temperature which permits surface diffusion of the metal film deposited in the recessed section to be generated.

    Abstract translation: 本发明提供一种将半导体晶片(W),特别是具有直径或宽度为100nm以下的细孔或沟槽的半导体晶片(W)的表面上形成的凹部嵌入仅通过等离子体 用金属,特别是铜溅射。 在凹部中沉积少量金属膜的成膜步骤和使沉积的金属膜向凹部的底部移动的扩散步骤交替进行多次。 在成膜步骤中,设置施加到用于支撑晶片(W)的放置台的偏置功率,使得在晶片(W)的表面上,由于金属粒子绘制而产生的金属沉积物的沉积速率为 基本上与由等离子体产生的溅射蚀刻的蚀刻速率平衡。 在扩散步骤中,晶片(W)保持在允许沉积在凹部中的金属膜的表面扩散以产生的温度。

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