分析分野におけるガス放出測定

  • 平下 紀夫
    電子科学株式会社
  • 浦野 真理
    電子科学株式会社
  • 吉田 肇
    独立行政法人産業技術総合研究所 計測標準研究部門 力学計測科 圧力真空標準研究室

書誌事項

タイトル別名
  • Measurements of Outgassing Rates in a Field of Analysis
  • ブンセキ ブンヤ ニ オケル ガス ホウシュツ ソクテイ
公開日
2014
DOI
  • 10.3131/jvsj2.57.214
公開者
一般社団法人 日本真空学会

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説明

For many years since 1990's, we have developed thermal desorption spectrometer (TDS) as ex-situ analysis tool, used in wide fields of process control and development of new materials such as semiconductor and flat display devices, polymers, catalyst, metals and so on. Recently TDS is required not just for qualitative or relative comparison but for quantification of thermally-desorbed gasses.<br>   This paper describes the performance and the several key points for quantification in TDS measurements; (1) repeatability of measurements and simple calibration method using referenced materials of ion implanted Si, (2) stability of sensitivity in quadrupole mass spectrometer (QMS), and (3) mass discrimination of QMS sensitivity and its correction method. The correction method for mass discrimination of QMS is successfully demonstrated. Entire results indicate that the TDS measurement provides a good quantitative evaluation of many kinds of outgassing species not only hydrogen and water vapor.<br>

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