发明名称 Back side wafer dicing
摘要 Systems and methods for scribing a semiconductor wafer with reduced or no damage or debris to or on individual integrated circuits caused by the scribing process. The semiconductor wafer is scribed from a back side thereof. In one embodiment, the back side of the wafer is scribed following a back side grinding process but prior to removal of back side grinding tape. Thus, debris generated from the scribing process is prevented from being deposited on a top surface of the wafer. To determine the location of dicing lanes or streets relative to the back side of the wafer, the top side of the wafer is illuminated with a light configured to pass through the grinding tape and the wafer. The light is detected from the back side of the wafer, and the streets are mapped relative to the back side. The back side of the wafer is then cut with a saw or laser.
申请公布号 US2007275541(A1) 申请公布日期 2007.11.29
申请号 US20060441453 申请日期 2006.05.25
申请人 HARRIS RICHARD S;LO HO W 发明人 HARRIS RICHARD S.;LO HO W.
分类号 H01L21/00 主分类号 H01L21/00
代理机构 代理人
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