发明名称 METHOD AND DEVICE OF PEELING PROTECTIVE TAPE
摘要 <P>PROBLEM TO BE SOLVED: To provide a method and a device for peeling a protective tape from the wafer surface with high precision. <P>SOLUTION: An annular protrusion formed to be left on the rear surface of a wafer W to surround a back grind region is suction held by a first holding table 6a, and a second holding table 6b having an outer peripheral wall in close proximity to the inner wall of the annular protrusion is inserted into a flat recess on the inside of the annular protrusion. While suction holding the flat surface, an adhesive tape T for peeling is stuck to a protective tape on the surface of the wafer W, and then the protective tape is peeled off integrally from the surface of the wafer W by peeling the adhesive tape T. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012089647(A) 申请公布日期 2012.05.10
申请号 JP20100234495 申请日期 2010.10.19
申请人 NITTO DENKO CORP;NITTO SEIKI KK 发明人 OKUNO CHOHEI;YAMAMOTO MASAYUKI
分类号 H01L21/683;H01L21/304 主分类号 H01L21/683
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