포커스 링 및 플라즈마 처리 장치
    2.
    发明公开
    포커스 링 및 플라즈마 처리 장치 有权
    聚焦环和等离子体加工设备

    公开(公告)号:KR1020050025079A

    公开(公告)日:2005-03-11

    申请号:KR1020040070432

    申请日:2004-09-03

    CPC classification number: H01L21/67069 H01J37/32642

    Abstract: A focus ring and a plasma processing apparatus are provided to obtain the same uniform plasma processing of an edge as a center of wafer and to reduce a deposition in the back surface of edge. A focus ring includes a lower member and an upper member. The lower member(9) is formed with a dielectric. An upper member(10) made of a conductive material is formed on the top of the lower member. An inclined portion that an outer circumferential side thereof is higher than an inner circumferential side is formed on the top surface of the upper member. The position of end of the outer circumferential side in the inclined portion is higher than the position of a surface of the wafer(W) to be processed. The inner circumferential side of the upper member is spaced apart from a circumferential edge of the wafer by a predetermined distance.

    Abstract translation: 提供聚焦环和等离子体处理装置以获得作为晶片中心的边缘的相同的均匀等离子体处理并减少边缘的后表面中的沉积。 聚焦环包括下部构件和上部构件。 下部构件(9)形成有电介质。 由导电材料制成的上部构件(10)形成在下部构件的顶部上。 在上部构件的上表面上形成有外周侧高于内周侧的倾斜部。 倾斜部分中的外周侧的端部的位置高于待处理的晶片(W)的表面的位置。 上部构件的内周侧与晶片的圆周边缘间隔预定距离。

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