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Materials and Processes of Electron Devices pp 419–450Cite as

Getters and Getter Processes

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Abstract

Various gettering materials are used to shorten the exhaust process, to improve or maintain the vacuum in sealed-off tubes or to maintain the purity of rare gases in gas-filled tubes. In the simplest case, large, particularly porous surface areas of glass or carbon cooled much below room temperature, may be used. Solid surfaces of some clean metals (tantalum, zirconium) as well as phosphorous and most metals in a vaporized state or film may also be used as getters (tungsten, nickel, copper, especially alkali and alkaline-earth metals). Phosphorous pentoxide, calcium chloride, and other drying agents are used exclusively for absorption of water vapor.

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References on Getters and Getter Processes

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Drying Agents

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Cleanup-Effect

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Authors and Affiliations

  1. Technische Hochschule München, Germany

    Max Knoll (Dr.-Ing., Professor of Electronics, Fellow)

  2. Dept. El. Engineering, Princeton University, USA

    Max Knoll (Dr.-Ing., Professor of Electronics, Fellow)

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  1. Max Knoll
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© 1959 Springer-Verlag OHG., Berlin Göttingen/Heidelberg

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Knoll, M. (1959). Getters and Getter Processes. In: Materials and Processes of Electron Devices. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-45936-8_15

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