Title:
PLANE POSITION DETECTING APPARATUS, EXPOSURE APPARATUS AND DEVICE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2007/058151
Kind Code:
A1
Abstract:
Provided is a plane position detecting apparatus which can highly accurately
detect the position of a plane to be detected by suppressing influence, which
is of a relative positional shift due to polarization components generated in
a luminous flux totally reflected on the inner plane reflecting plane of a prism
members, to detection of the position of the plane to be detected. At least one
of a projection system and a light receiving system is provided with total reflection
prism members (7;8) having the inner plane reflecting planes (7b, 7c;8b, 8c)
for totally reflecting an incoming luminous flux. In order to suppress the influence,
which is of the relative positional shift due to the polarization components
generated in the luminous flux totally reflected on the inner plane reflecting
plane of the total reflection prism members, to detection of the position of a
plane (Wa) to be detected, the refraction index of an optical material forming
the total reflection prism members and an incidence angle of the incoming luminous
flux to the inner plane reflecting plane of the total reflection prism member
are set to satisfy a prescribed relationship.
Inventors:
HIDAKA YASUHIRO (JP)
Application Number:
PCT/JP2006/322595
Publication Date:
May 24, 2007
Filing Date:
November 14, 2006
Export Citation:
Assignee:
NIKON CORP (JP)
HIDAKA YASUHIRO (JP)
HIDAKA YASUHIRO (JP)
International Classes:
G01B11/00; G02B5/04; G02B7/28; G03F7/20; G03F7/207; G03F9/02; H01L21/027
Foreign References:
JP2004343045A | 2004-12-02 |
Other References:
See also references of EP 1956339A4
Attorney, Agent or Firm:
YAMAGUCHI, Takao (10 Kanda-tsukasacho 2-chom, Chiyoda-ku Tokyo 48, JP)
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