发明名称 Projection optical system adjustment method, prediction method, evaluation method, adjustment method, exposure method and exposure apparatus, program, and device manufacturing method
摘要 Wavefront aberration of a projection optical system is measured and information on the wavefront aberration is obtained (step 102 ). Furthermore, a pattern of a reticle is transferred onto a wafer via a projection optical system (steps 104 to 108 ). Then, the waver on which the pattern is transferred is developed, and line width measurement is performed on the resist image formed on the wafer and line width difference of images of a first line pattern extending in a predetermined direction and a second line pattern that is orthogonal to the first line pattern is measured (steps 112 to 118 ). And, according to a value of the 12<SUP>th </SUP>term of the Zernike polynomial, which is an expansion of the wavefront aberration, and the line width difference, the projection optical system is adjusted so that magnitude of the 9<SUP>th </SUP>term (a low order spherical aberration term) is controlled (steps 120 to 124 ).
申请公布号 US2006227306(A1) 申请公布日期 2006.10.12
申请号 US20060447004 申请日期 2006.06.06
申请人 发明人 HIRUKAWA SHIGERU;NAKASHIMA TOSHIHARU;HIGASHI KENJI
分类号 G03B27/68 主分类号 G03B27/68
代理机构 代理人
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