JP2019095233A - 走査型マイクロ波顕微鏡、及びこれを用いた被測定物の表面の電気特性の測定方法 - Google Patents
走査型マイクロ波顕微鏡、及びこれを用いた被測定物の表面の電気特性の測定方法 Download PDFInfo
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Abstract
Description
2:AFMプローブの探針(先端)
3:T分岐(回路)
4:T分岐(回路)の第1端
5:T分岐(回路)の第2端
6:T分岐(回路)の第3端
7:位相可変短絡器(空洞共振器)
8:可動短絡板
9:ベクトルネットワークアナライザ(VNA)
10:表示部
11:ステージ
12:被測定物
100:走査型マイクロ波顕微鏡(SMM)
Claims (7)
- 被測定物の表面を走査能なAFMプローブと、
第1端がAFMプローブに接続するT分岐と、
T分岐の第2端に接続する位相可変短絡器と、
T分岐の第3端を介してAFMプローブと位相可変短絡器に接続するベクトルネットワークアナライザと、を備え、
AFMプローブと位相可変短絡器は1つの共振回路を構成し、位相可変短絡器は、ベクトルネットワークアナライザがAFMプローブを介して被測定物の表面に照射した電磁波の反射波信号の共振周波数の位相を調整する、走査型マイクロ波顕微鏡。 - 前記位相可変短絡器は、内蔵する可動短絡板の管軸方向の位置を変えることにより前記共振周波数の位相を調整する、請求項1に記載の走査型マイクロ波顕微鏡。
- 前記ベクトルネットワークアナライザは、前記AFMプローブを介して、前記被測定物の表面に電磁波を照射し、その電磁波の反射波信号を検出し、前記位相可変短絡器による位相調整後の選択された共振周波数での振幅変化または位相変化から、前記被測定物の表面の電気特性を求める、請求項1または2に記載の走査型マイクロ波顕微鏡。
- 走査型マイクロ波顕微鏡を用いた被測定物の表面の電気特性の測定方法であって、
(a)AFMプローブを介して被測定物の表面に所定範囲の周波数の電磁波を照射するステップと、
(b)被測定物の表面からの反射電磁波をAFMプローブを介してベクトルネットワークアナライザにより検出するステップと、
(c)位相可変短絡器を用いて、反射電磁波の共振周波数の位相を調整するステップと、
(d)ベクトルネットワークアナライザにより、位相調整後の選択された共振周波数での反射電磁波の振幅変化または位相変化から、被測定物の表面の電気特性を求めるステップと、を含む測定方法。 - 前記反射電磁波の共振周波数の位相を調整するステップは、前記位相可変短絡器が内蔵する可動短絡板の管軸方向の位置を変えることにより前記共振周波数の位相を調整するステップを含む、請求項4に記載の測定方法。
- 前記AFMプローブと前記位相可変短絡器は、前記ベクトルネットワークアナライザに並列的に接続する、請求項4または5に記載の測定方法。
- 前記AFMプローブを前記被測定物の表面上を走査しながら前記ステップ(a)〜(d)を実行して、前記被測定物の表面の電気特性の分布を得るステップをさらに含む、請求項4〜6のいずれか一項に記載の測定方法。
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Cited By (1)
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CN111141796A (zh) * | 2020-02-24 | 2020-05-12 | 张洮 | 微波电容传感器及被测物介电特性和绝对位置的测量方法 |
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Patent Citations (9)
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JPS6321584A (ja) * | 1986-07-14 | 1988-01-29 | Kobe Steel Ltd | マイクロ波レ−ダレベル測定装置 |
JPH06347423A (ja) * | 1993-06-08 | 1994-12-22 | Kobe Steel Ltd | 半導体ウエハの物性測定装置 |
JPH09162604A (ja) * | 1995-12-11 | 1997-06-20 | Mitsubishi Electric Corp | 可変移相器 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111141796A (zh) * | 2020-02-24 | 2020-05-12 | 张洮 | 微波电容传感器及被测物介电特性和绝对位置的测量方法 |
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