Processes for coating superconducting films on devices
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United States of America Patent
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Issued Date -
Aug 21, 2003
app pub date -
Feb 20, 2002
filing date -
Feb 20, 2002
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Abandoned
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Abstract
A method for coating a device with superconducting material is disclosed. The method includes coating a thin pre-layer of superconducting material on the device, heat treating the thin pre-layer, coating a second layer on the heat-treated thin pre-layer and heat treating the second and thin pre-layers. The method prevents or substantially prevents bleeding of superconducting material into uncoated regions of the device. Another disclosed method involves the mechanical polishing of the device prior to coating with the superconducting material. Such a preliminary mechanical polishing reduces scratches and surface defects which, by way of capillary action, can contribute to the bleeding of the superconducting material from a coated region into an uncoated region of the device.
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