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Title:
多層材料の元素組成及び厚みの分析
Document Type and Number:
Japanese Patent JP2009510479
Kind Code:
A
Abstract:
A method of verifying layer order in a multilayer stack uses data acquired by x-ray fluorescence. Verification is achieved by irradiating the stack with penetrating radiation and then measuring the intensities of fluoresced x-rays characteristic of an element known to be present in one of the layers of the stack. The intensity information thus obtained is used to determine the attenuation of the overlying layers and the areal density of the relevant element. The intensities of fluoresced x-rays characteristic of a different element known to be present in a second layer are then measured, and the experimentally-determined intensity ratio is compared to an expected intensity ratio, which is based on the anticipated attenuation by the first layer and layers overlying the first layer. If the experimentally-determined ratio matches the expected ratio, then a hypothesized order (second layer immediately underlying the first layer) is verified.

Inventors:
Grozins Lee
Application Number:
JP2008534666A
Publication Date:
March 12, 2009
Filing Date:
October 04, 2006
Export Citation:
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Assignee:
Thermoniton Analyzers Limited Liability Company
International Classes:
G01N23/223; G01B15/02
Domestic Patent References:
JPH05209847A1993-08-20
JPH10311809A1998-11-24
JPH01121743A1989-05-15
JP2001304843A2001-10-31
JPH05209847A1993-08-20
Attorney, Agent or Firm:
Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Yasushi Yamamoto