Technological challenges in manufacturing of vacuum gauge thermionic cathode using thick-film technology
Abstract
This paper focuses on the development of a technological challenges of manufacturing the planar ceramic vacuum sensor based on the principles of hot-cathode ionization in the Bayard-Alpert configuration. The goal is to simplify the technological process by utilizing planar platinum structures with gold electrical paths instead of 3-dimensional structures. Various methods were tested, including the use of carbon-based SVM (Sacrifice Volume Materials) materials, but without success. Wet-etching using potassium hydroxide on Al2O3 substrates showed promise results. The findings highlight the challenges and progress made in developing the thermo-emittercomponent of the vacuum sensor.
© 2024 Laura Jasińska, Krzysztof Dzbik, Damian Nowak, Krzysztof Stojek, Aleksandra Chudzyńska, Kamil Politański, Karol Malecha, published by Wroclaw University of Science and Technology
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