发明名称 EXPOSURE APPARATUS
摘要 <P>PROBLEM TO BE SOLVED: To provide an exposure apparatus that can eliminate distortion in a mask while keeping the mask on a mask stage when stress acts on the mask to induce distortion upon sucking and holding the mask to the mask stage, that increases reproducibility of the shape of the mask kept on the stage and that can carry out exposure transfer with high accuracy. <P>SOLUTION: A mask stage 1 of a division sequential exposure apparatus PE has a pair of chucks 16 disposed corresponding to two sides opposing to each other of a mask M, each chuck having a plurality of box grooves 16b (16b1, 16b2, to 16b10). The plurality of box grooves 16b of each chuck 16 independently can impart sucking force to the mask M. <P>COPYRIGHT: (C)2008,JPO&INPIT
申请公布号 JP2008026475(A) 申请公布日期 2008.02.07
申请号 JP20060197000 申请日期 2006.07.19
申请人 NSK LTD 发明人 NAKAMURA KENGO
分类号 G03F7/20;H01L21/027;H01L21/683 主分类号 G03F7/20
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