发明名称 WAFER DICING USING FEMTOSECOND-BASED LASER AND PLASMA ETCH
摘要 Methods of dicing semiconductor wafers, each wafer having a plurality of integrated circuits, are described. A method includes forming a mask above the semiconductor wafer, the mask including a layer covering and protecting the integrated circuits. The mask and a portion of the semiconductor wafer are patterned with a laser scribing process to provide a patterned mask and to form trenches partially into but not through the semiconductor wafer between the integrated circuits. Each of the trenches has a width. The semiconductor wafer is plasma etched through the trenches to form corresponding trench extensions and to singulate the integrated circuits. Each of the corresponding trench extensions has the width.
申请公布号 KR20140083065(A) 申请公布日期 2014.07.03
申请号 KR20147016661 申请日期 2011.06.20
申请人 APPLIED MATERIALS, INC. 发明人 LEI WEI SHENG;EATON BRAD;YALAMANCHILI MADHAVA RAO;SINGH SARAVJEET;KUMAR AJAY;HOLDEN JAMES M.
分类号 H01L21/301;H01L21/027;H01L21/3065 主分类号 H01L21/301
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