High power RF window deposition apparatus, method, and device

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United States of America Patent

PATENT NO 9698454
SERIAL NO

13937216

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Abstract

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A process for forming a coating for an RF window which has improved secondary electron emission and reduced multipactor for high power RF waveguides is formed from a substrate with low loss tangent and desirable mechanical characteristics. The substrate has an RPAO deposition layer applied which oxygenates the surface of the substrate to remove carbon impurities, thereafter has an RPAN deposition layer applied to nitrogen activate the surface of the substrate, after which a TiN deposition layer is applied using Titanium tert-butoxide. The TiN deposition layer is capped with a final RPAN deposition layer of nitridation to reduce the bound oxygen in the TiN deposition layer. The resulting RF window has greatly improved titanium layer adhesion, reduced multipactor, and is able to withstand greater RF power levels than provided by the prior art.

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Patent Owner(s)

  • CALABAZAS CREEK RESEARCH, INC;NORTH CAROLINA STATE UNIVERSITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ives, R Lawrence San Mateo, US 16 95
Lucovsky, Gerald Cary, US 8 146
Zeller, Daniel Scottsdale, US 4 0

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