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发明名称
研磨垫及其制造方法
摘要
一种研磨垫,其具有一研磨面、一背面以及一与此研磨面及背面连接之侧壁,且此研磨垫具有中心区与研磨区,其中研磨面之中心区处在研磨过程中会受应力挤压而突起,因而在中心区内系设计有至少一缓冲应力图案。此缓冲应力图案系可缓冲研磨垫的中心区在研磨制程中所承受的应力,以避免中心区受应力挤压而突起,进而防止晶圆裁具与此突起部位摩擦,而产生的碎屑污染晶圆。此外,在研磨垫之侧壁上系设计至少一弧面,以避免在研磨过程中晶圆戴具会与此侧壁摩擦,而产生的碎屑污染晶圆。
申请公布号
TW200512061
申请公布日期
2005.04.01
申请号
TW093102897
申请日期
2004.02.09
申请人
智胜科技股份有限公司
发明人
施文昌;张永忠;朱明癸
分类号
B24B7/24;H01L21/304
主分类号
B24B7/24
代理机构
代理人
詹铭文;萧锡清
主权项
地址
台中市工业区十六路7号
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