发明名称 WORKPIECE STAGE AND EXPOSURE APPARATUS USING THE WORKPIECE STAGE
摘要 <P>PROBLEM TO BE SOLVED: To provide a workpiece stage which includes a pedestal with a concave portion for supplying vacuum and a suction plate having a plurality of through-holes to be attached to the concave portion for sucking a workpiece, and includes a sealing elastic body on the periphery of the sucking plate in order to suck and hold the warped workpiece and inexpensive and facilitates processing, and to provide an exposure apparatus using the workpiece stage. <P>SOLUTION: The sealing elastic body is fixed to a sealing elastic body attaching plate which is different from the sucking plate and is detached from the pedestal, and the sealing elastic body attaching plate is attached to the pedestal so as to surround the sucking plate. <P>COPYRIGHT: (C)2010,JPO&INPIT
申请公布号 JP2010153419(A) 申请公布日期 2010.07.08
申请号 JP20080326963 申请日期 2008.12.24
申请人 USHIO INC 发明人 OKANO TATSUHIRO
分类号 H01L21/683;G03F7/20;H01L21/027;H05K3/00 主分类号 H01L21/683
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