Amorphous Fluoropolymer Films for Superconductive Microwave Components Using High-Tc Superconducting Films
- 1 November 1991
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 30 (11R) , 2751
- https://doi.org/10.1143/jjap.30.2751
Abstract
This paper describes the influence of amorphous fluoropolymer (AF) film on the properties of high-T c superconductive microwave components, when it is used for surface protection and as a spacer. It is found that AF film can protect EuBaCuO and TlBaCaCuO superconducting film from dampness, thus maintaining the properties of a microstrip resonator for at least 1000 h. The AF protection has almost no effect on properties such as temperature dependence and unloaded-Q values in high-Q microwave components. Additionally, the use of AF film as a spacer in a strip-line structure reduces the influence of spacing on the effective dielectric constant and characteristic impedance.Keywords
This publication has 20 references indexed in Scilit:
- Properties of Superconductive Strip-line Resonators Fabricated Using EuBaCuO Films on MgO (100)Japanese Journal of Applied Physics, 1991
- YBaCuO Epitaxial Film Formation by Magnetron Sputtering with Facing Targets I. Effects of Target and Substrate PositionsJapanese Journal of Applied Physics, 1991
- Micropatterning of high-T/sub c/ superconducting film by nitrogen ion beam and Ta/resist multilayer maskIEEE Transactions on Magnetics, 1991
- Fabrication and characterization of YBCO microstrip delay linesIEEE Transactions on Magnetics, 1991
- Photoelectron spectroscopic studies on a silicon interface with Bi2Sr2CaCu2BO8+δ high T c superconductorJournal of Applied Physics, 1990
- Millimeter-Wave Surface Resistance of EuBa2Cu3O7-y Film on MgO SubstratesJapanese Journal of Applied Physics, 1990
- Epitaxy and Orientation of Eu1Ba2Cu3O7-y Films Grown In Situ by Magnetron SputteringJapanese Journal of Applied Physics, 1989
- Critical currents in a high-T/sub c/ superconducting short dipole antennaIEEE Transactions on Magnetics, 1989
- Superconductive analog signal processing devicesProceedings of the IEEE, 1989
- Effect of Overcoating with Dielectric Films on the Superconductive Properties of the High-Tc Y-Ba-Cu-O FilmsJapanese Journal of Applied Physics, 1988