发明名称 METHOD FOR DICING SEMICONDUCTOR WAFER
摘要 <p>To prevent scattering of minute triangular end-material fragments from the outer-peripheral end edge of the semiconductor wafer at both a dicing step and a grinding step not to lose recognizability of the information of the ID mark and discriminability of a notch formed for indicating the crystal orientation of the semiconductor wafer, a method for dicing a semiconductor wafer formed with semiconductor chips demarcated by streets includes: at least a groove formation step of cutting and forming grooves whose depth corresponds to a finish thickness of the semiconductor chips, along the streets leaving a slight outer peripheral region of the semiconductor wafer uncut, a protective-member disposition step of disposing a protective member on the front surface of the semiconductor wafer formed with the grooves, and a splitting step of grinding a back surface of the semiconductor wafer so as to expose the grooves, thereby dicing the semiconductor wafer into the individual semiconductor chips.</p>
申请公布号 SG130941(A1) 申请公布日期 2007.04.26
申请号 SG20040051264 申请日期 2004.09.17
申请人 DISCO CORPORATION 发明人 PRIEWASSER KARL HEINZ
分类号 B24B7/22;B28D5/02;H01L21/301;H01L21/304;H01L21/78;H01L23/544;H05K3/00 主分类号 B24B7/22
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