发明名称 PROJECTION OBJECTIVE FOR A MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS
摘要 A projection objective of a microlithographic projection exposure apparatus contains a plurality of optical elements arranged in N>−2 successive sections A1 to AN of the projection objective which are separated from one another by pupil planes or intermediate image planes. According to the invention, in order to correct a wavefront deformation, at least two optical elements each have an optically active surface locally reprocessed aspherically. A first optical element is in this case arranged in one section Aj, j=1 . . . N and a second optical element is arranged in another section Ak, k=1 . . . N, the magnitude difference |k−j| being an odd number.
申请公布号 KR101492266(B1) 申请公布日期 2015.02.11
申请号 KR20067025324 申请日期 2005.06.02
申请人 发明人
分类号 G03F7/20 主分类号 G03F7/20
代理机构 代理人
主权项
地址