发明名称 |
SUBSTRATE FOR INSPECTION, METHOD OF MANUFACTURING SUBSTRATE FOR INSPECTION, METHOD OF EVALUATING SUBSTRATE FOR INSPECTION, METHOD OF MANUFACTURING POSITION DETECTOR, POSITION DETECTOR, AND PROJECTION EXPOSURE DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To provide a substrate capable of measuring accurately a comatic aberration, a spherical aberration and the amount of a luminous flux vignette. SOLUTION: A phase difference d generated by a step difference between a protruded part and a recessed part of a phase pattern WM in the phase pattern WM of the substrate for the inspection satisfys, for example, (λ/4)(2n+1)-λ/20<=d<=(λ/4)(2n+1)+λ/20 whereinλrepresents the wavelength of illumination light of a position detector, and n is an integer, and a duty ratio (l/s) between the protruded part and a recessed part of the phase pattern WM satisfys 49/51<=l/s<=51/49, a symmetry property between a left side edge angle A and a right side edge angle B in the protruded part of the phase pattern WM satisfys the condition of -20 deg.<=A-B<=20 deg., and the left side edge angle A and the right side edge angle B in the protruded part of the phase pattern WM satisfy the conditions of 70 deg.<=A<=110 deg. and 70 deg.<=B<=110 deg. respectively.
|
申请公布号 |
JP2002213916(A) |
申请公布日期 |
2002.07.31 |
申请号 |
JP20010004906 |
申请日期 |
2001.01.12 |
申请人 |
NIKON CORP |
发明人 |
NAGAYAMA TADASHI;NAKAMURA AYAKO |
分类号 |
G01B11/00;G03F7/20;G03F9/00;H01L21/027;(IPC1-7):G01B11/00 |
主分类号 |
G01B11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|