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Title:
MEASUREMENT METHOD USING SECONDARY ELECTRON MULTIPLYING ELEMENT, AND DEVICE USING THE SECONDARY ELECTRON MULTIPLYING ELEMENT
Document Type and Number:
Japanese Patent JP2008268235
Kind Code:
A
Abstract:

To provide a method capable of maintaining accurate measurement without having to recalibrate a secondary electron multiplying element measuring system, and a vacuum processing device that precludes the operation from stopping for recalibration that accompanies changes in the measurement accuracy of the secondary electron multiplying element.

Measured values of a particle, such as a charged particle measured by the element, are multiplied with a ratio A/B of an initial intensity value A of soft X-ray intensity measured in an installation initial stage of the secondary electron multiplying element 4 installed under vacuum condition, with the intensity value B of the soft X-ray intensity measured under measuring use of the element, as a correction factor.


Inventors:
AKIMICHI HITOSHI
TAKEUCHI KIYOUKO
TSUJI YASUSHI
ARAKAWA ICHIRO
Application Number:
JP2008207324A
Publication Date:
November 06, 2008
Filing Date:
August 11, 2008
Export Citation:
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Assignee:
ULVAC CORP
International Classes:
G01L21/30
Domestic Patent References:
JPH10185844A1998-07-14
JPH01135331A1989-05-29
JPH06331574A1994-12-02
JPS63193351A1988-08-10
Attorney, Agent or Firm:
Yoshihiro Shimizu
Shinichi Abe
Yuji Tsujida