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Title:
CHARGED PARTICLE BEAM MICROSCOPE, AND METHOD FOR CORRECTING MEASURED IMAGE USING SAME
Document Type and Number:
WIPO Patent Application WO/2012/111054
Kind Code:
A1
Abstract:
The purpose of the present invention is to correct image distortion due to influence of a drift of a stage using a smaller number of images without waiting for stop of stage movement. In order to achieve the purpose, this invention measures an image for reference (202) for distortion correction, at a position and a magnification identical to those of an image (201) to be obtained for the purpose of observation. At that time, in order to reduce influence of drift, the image for reference is measured in a time shorter than that in which conventional images for observation are measured. The shape of the image for observation is corrected by comparing the shape of the image for reference and the shape of the image for observation with each other, and distortion is reduced.

Inventors:
DONG SHUANGQI (JP)
SATO NORIO (JP)
KOYAMA SUSUMU (JP)
Application Number:
PCT/JP2011/006128
Publication Date:
August 23, 2012
Filing Date:
November 02, 2011
Export Citation:
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Assignee:
HITACHI HIGH TECH CORP (JP)
DONG SHUANGQI (JP)
SATO NORIO (JP)
KOYAMA SUSUMU (JP)
International Classes:
H01J37/22; H01J37/153; H01J37/20
Domestic Patent References:
WO2011007492A12011-01-20
Foreign References:
JPH07272665A1995-10-20
JP2009110734A2009-05-21
JP2003086126A2003-03-20
JP2000331637A2000-11-30
JP2007200784A2007-08-09
Attorney, Agent or Firm:
INOUE, Manabu et al. (JP)
Manabu Inoue (JP)
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Claims: