JP5684819B2 - 単層物体及び多層物体の界面特性を検出及び測定するシステム及び方法 - Google Patents
単層物体及び多層物体の界面特性を検出及び測定するシステム及び方法 Download PDFInfo
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3581—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation
- G01N21/3586—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation by Terahertz time domain spectroscopy [THz-TDS]
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- G01—MEASURING; TESTING
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- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
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- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3581—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation
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Description
係数∝APkn/APkn+1
接着係数=1/(APkn/APkn+1)=APkn+1/APkn
及び
であり、ここで、θi、θr及びθtは、それぞれ入射光線の角度、反射光線の角度及び透過光線の角度である。
透過では、
ΔtTotal=ΔtSample−ΔtAir
ΔtTotal=ΔtL1+ΔtL2+ΔtL3
であり、反射では、
ΔtL1=(t2−t1−dL1/c)/2 dL1=層1の厚さ
ΔtL2=(t3−t2−dL2/c)/2 dL2=層2の厚さ
ΔtL3=(t4−t3−dL3/c)/2 dL3=層3の厚さ
である。
ΔtL2=ΔtTotal+dOuter/c−(t2−t1+t4−t3)/2
が得られる。
ΔtL2=(t3−t2)/2−((dTotal−2dOuter)/c)
追加された透過測定の算定方式は、次の理由により、ΔtL2値の精度改善をもたらす。
1)透過/反射測定は、反射のみの測定における2dOuterとは対照的に、dOuterの変動にのみ敏感であり、
2)反射のみの測定は、dTotalの変動に敏感である。透過/反射の組合せ測定は敏感でない。
Claims (20)
- 試料の第1の層と第2の層との間の境界面の材料特性を求める方法において、
前記試料に対して電磁放射線を出力するステップと、
前記試料によって反射された電磁放射線又は前記試料を透過した電磁放射線を受け取るステップと、
前記試料から反射された前記電磁放射線又は前記試料を透過した前記電磁放射線をデジタル化して波形データを生成するステップであって、前記波形データが、前記試料から反射された前記放射線又は前記試料を透過した前記放射線を表し、前記波形データが、第1の大きさ、第2の大きさ、及び第3の大きさを有し、
前記第1の大きさが、前記第1の層の最上面の境界面に供給された前記電磁放射線の反射された部分又は透過した部分を表し、前記第2の大きさが、前記第1の層と前記第2の層との間の前記境界面に供給された前記電磁放射線の反射された部分又は透過した部分を表し、前記第3の大きさが、前記第2の層の最下面の境界面に供給された前記電磁放射線の反射された部分又は透過した部分を表す、ステップと、
前記第2の大きさ及び/又は前記第3の大きさを解析することにより、前記試料の前記第1の層と前記第2の層との間の材料特性を求めるステップとを含み、
前記方法は、前記波形データを解析して、時間的に前記第3の大きさと前記第2の大きさとの間に第4の大きさが存在するかどうかを判断することにより、前記試料の前記第1の層と前記第2の層との間の接着強度を求めるステップをさらに含む、方法。 - 前記材料特性が接着強度である、請求項1に記載の方法。
- 前記第2の大きさを基準の大きさと比較することにより、前記試料の前記第1の層と前記第2の層との間の前記接着強度を求めるステップをさらに含む、請求項1に記載の方法。
- 前記第3の大きさを基準の大きさと比較することにより、前記試料の前記第1の層と前記第2の層との間の前記接着強度を求めるステップをさらに含む、請求項1に記載の方法。
- 前記第3の大きさを前記第2の大きさと比較することにより、前記試料の前記第1の層と前記第2の層との間の前記接着強度を求めるステップをさらに含む、請求項1に記載の方法。
- 前記電磁放射線がテラヘルツ放射線である、請求項1に記載の方法。
- 前記テラヘルツ放射線が、連続波のテラヘルツ放射線である、請求項6に記載の方法。
- 前記テラヘルツ放射線が、時間領域のテラヘルツ放射線である、請求項6に記載の方法。
- 前記テラヘルツ放射線の周波数が、25GHzから10THzの間にある、請求項6に記載の方法。
- 時間的に前記第3の大きさと前記第2の大きさとの間に第4の大きさが存在するとき、前記第1の層と前記第2の層との間の接着強度が低下していると推断するステップをさらに含む、請求項1に記載の方法。
- 試料の第1の層と第2の層との間の境界面の材料特性を求めるシステムにおいて、
前記試料に対して電磁放射線を出力する送信器と、
前記試料によって反射された電磁放射線又は前記試料を透過した電磁放射線を受け取る受信器と、
前記試料から反射された前記電磁放射線又は前記試料を透過した前記電磁放射線をデジタル化して波形データを生成するように構成されたデータ収集デバイスであって、前記波形データが、前記試料から反射された前記放射線又は前記試料を透過した前記放射線を表し、前記波形データが、第1の大きさ、第2の大きさ、及び第3の大きさを有する、データ収集デバイスとを含み、
前記第1の大きさが、前記第1の層の最上面の境界面に供給された前記電磁放射線の反射された部分又は透過した部分を表し、前記第2の大きさが、前記第1の層と前記第2の層との間の前記境界面に供給された前記電磁放射線の反射された部分又は透過した部分を表し、前記第3の大きさが、前記第2の層の最下面の境界面に供給された前記電磁放射線の反射された部分又は透過した部分を表し、
前記データ収集デバイスが、前記第2の大きさ及び/又は前記第3の大きさを解析することにより、前記試料の前記第1の層と前記第2の層との間の前記材料特性を求めるように構成され、
前記データ収集デバイスが、前記波形データを解析して、時間的に前記第3の大きさと前記第2の大きさとの間に第4の大きさが存在するかどうかを判断することにより、前記試料の前記第1の層と前記第2の層との間の接着強度を求めるようにさらに構成されるシステム。 - 前記材料特性が接着強度である、請求項11に記載のシステム。
- 前記データ収集デバイスが、前記第2の大きさを基準の大きさと比較することにより、前記試料の前記第1の層と前記第2の層との間の前記接着強度を求めるようにさらに構成される、請求項11に記載のシステム。
- 前記データ収集デバイスが、前記第3の大きさを基準の大きさと比較することにより、前記試料の前記第1の層と前記第2の層との間の前記接着強度を求めるようにさらに構成される、請求項11に記載のシステム。
- 前記データ収集デバイスが、前記第3の大きさを前記第2の大きさと比較することにより、前記試料の前記第1の層と前記第2の層との間の前記接着強度を求めるようにさらに構成される、請求項11に記載のシステム。
- 前記電磁放射線が、テラヘルツ放射線である、請求項11に記載のシステム。
- 前記テラヘルツ放射線が、連続波のテラヘルツ放射線である、請求項16に記載のシステム。
- 前記テラヘルツ放射線が、時間領域のテラヘルツ放射線である、請求項16に記載のシステム。
- 前記テラヘルツ放射線の周波数が、25GHzから10THzの間にある、請求項16に記載のシステム。
- 前記データ収集デバイスが、時間的に前記第3の大きさと前記第2の大きさとの間に第4の大きさが存在するとき、前記第1の層と前記第2の層との間の接着強度が低下していると判断するようにさらに構成される、請求項11に記載のシステム。
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US25098309P | 2009-10-13 | 2009-10-13 | |
US61/250,983 | 2009-10-13 | ||
PCT/US2010/052467 WO2011047016A1 (en) | 2009-10-13 | 2010-10-13 | System and method for detection and measurement of interfacial properties in single and multilayer objects |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US11933726B2 (en) | 2019-04-15 | 2024-03-19 | Yokogawa Electric Corporation | Measurement apparatus and measurement method |
US11781994B2 (en) | 2021-03-30 | 2023-10-10 | Yokogawa Electric Corporation | Measurement apparatus and measurement method |
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KR101786133B1 (ko) | 2017-10-17 |
EP2488849B1 (en) | 2018-08-22 |
CA2777381A1 (en) | 2011-04-21 |
US9588041B2 (en) | 2017-03-07 |
KR20120088742A (ko) | 2012-08-08 |
US20120304756A1 (en) | 2012-12-06 |
CN102667442A (zh) | 2012-09-12 |
CN102667442B (zh) | 2015-07-29 |
EP2488849A1 (en) | 2012-08-22 |
EP2488849A4 (en) | 2014-04-23 |
WO2011047016A1 (en) | 2011-04-21 |
JP2013507640A (ja) | 2013-03-04 |
CA2777381C (en) | 2017-10-03 |
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