Gas analyzing system, lithographic apparatus and method of...

Measuring and testing – Gas analysis

Reexamination Certificate

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Reexamination Certificate

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07624617

ABSTRACT:
A gas analyzing system is disclosed, the system including a gas analyzer and a reduced pressure chamber in which interior the gas analyzer is arranged, the reduced pressure chamber having an inlet configuration for a gas mixture inflow and an outlet configuration for a gas mixture outflow, wherein the outlet configuration during operation is connected to a pump system to facilitate the gas mixture outflow, the outlet configuration having a channel section and a flow section, the flow section having a cross-sectional area that is smaller than the cross-sectional area of the channel section.

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patent: 1 223 468 (2002-07-01), None
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Allain et al., “Studies of liquid-metal erosion and free surface flowing liquid lithium retention of helium at the University of Illinois,” Fusion Engineering and Design, 72: 1-3, Elsevier Science Publishers, Amsterdam, NL, Nov. 1, 2004, pp. 93-110.
Ganguly et al., “ABsense of a Steady State in Hydrogen Diluted Silane plasmas due to Mass Dependent Gas Pumping Speeds and its Consequences,” Materials Research Society Symposium Proceedings, 715, 2002, pp. A1.4.1-A1.4.5.

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