or
Bookmark and Share
Device and method for the optical measurement of an optical system by using an immersion fluid
 
   
Document Number
US Patent 7408652
Issued Date
August 5, 2008
Link
Map
Abstract
A device for the optical measurement of an optical system, in particular an optical imaging system, is provided. The device includes at least one test optics component arranged on an object side or an image side of the optical system. An immersion fluid is adjacent to at least one of the test optics components. A container for use in this device, a microlithography projection exposure machine equipped with this device, and a method which can be carried out with the aid of this device are also provided. The device and method provide for optical measurement of microlithography projection objectives with high numerical apertures by using wavefront detection with shearing or point diffraction interferometry, or a Moire measuring technique.
Tags:
Description:
Amusing 0%
Clever 0%
Complex 0%
Efficient 0%
Historic 0%
Important 0%
Innovative 0%
Interesting 0%
Practical 0%
Simple 0%
Number of Claims:
30
Comments:
no comments yet
Owner
Carl Zeiss SMT AG (Oberkochen,DE)
Published
August 5, 2008
Application Number
11/080,525
Filed
March 16, 2005
US Classification
356/515   356/124
Int'l Classification
G01B   9/02   (20060101)   G02B   27/40   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
This is a Continuation in Part of International Application PCT/EP2003/014663, with an international filing date of Dec. 19, 2003, which was published under PCT Article 21(2) in English, and the disclosure of which is incorporated into this application by reference; the following disclosure is additionally based on German Patent Application No. 102 61 775.9 filed on Dec. 20, 2002, which is also incorporated into this application by reference.
Priority Data
Dec 20, 2002 [DE] 102 61 775
USPTO Field of Search
356/489   356/495   356/515   356/124   355/53  
Related Patents
Claims
Description
About| FAQs| Terms & Disclaimer| Link to Us| Contact Us