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Title:
MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS
Document Type and Number:
Japanese Patent JP2013065857
Kind Code:
A
Abstract:

To provide a microlithographic projection exposure apparatus for imaging a mask on a layer using a catoptric projection lens which is configured for wavelengths in the extreme ultraviolet spectral range (EUV).

A microlithographic projection exposure apparatus includes a projection light source (PLS), a heating light source (HLS), a catoptric projection lens (26) and a reflecting switching element (122; 222; 322; 422; 14; 14, 140), which can be preferably arranged outside of the projection lens (26) and displaced between a first position and a second position using a driver (124). In this case, only projection light (PL) can enter the projection lens in the first position of the switching element, and only heating light (HL) can enter the projection lens in the second position of the switching element.


Inventors:
BITTNER BORIS
NORBERT WABRA
Application Number:
JP2012221683A
Publication Date:
April 11, 2013
Filing Date:
September 14, 2012
Export Citation:
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Assignee:
ZEISS CARL SMT GMBH
International Classes:
H01L21/027; G02B17/00; G02B19/00; G03F7/20
Domestic Patent References:
JP2005243771A2005-09-08
JP2011176311A2011-09-08
JP2008135742A2008-06-12
JP2005243680A2005-09-08
JPH11150053A1999-06-02
JPH06124871A1994-05-06
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Yoshinori Kishi