Measurement of a gas constituent by a mass spectrometer

The accuracy of measurement of a constituent of a small volume of gas (such as the moisture within an integrated circuit package) is improved by improving the accuracy of the calibration of the spectrometer being used to make the measurement. The calibration is achieved by measuring with the spectro...

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Bibliographische Detailangaben
Hauptverfasser: VOWINKEL, FRANK C, GRILLETTO, CARLO
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The accuracy of measurement of a constituent of a small volume of gas (such as the moisture within an integrated circuit package) is improved by improving the accuracy of the calibration of the spectrometer being used to make the measurement. The calibration is achieved by measuring with the spectrometer the known amount of the constituent in a reference sample of about the same size as the small volume of gas in the test sample.