Appeal No. 1997-2628 Page 2
Application No. 08/383,713
compounds are formed, respectively, on first and second planar
surfaces of an underlying dielectric substrate. Thereafter,
the coated substrate is annealed under specified conditions to
yield substantially uniform superconductive characteristics in
the first and second thin films. An understanding of the
invention can be derived from a reading of exemplary claim 8,
which is reproduced below.
8. A method for manufacturing a substrate
for a superconducting microwave componet, the
substrate being composed of an underlying
dielectric substrate and a pair of oxide
superconductor thin films formed on a pair of
opposite planar surfaces of said underlying
dielectric substrate, respectively, the method
including the steps of:
forming a first Tl-Ba-Ca-Cu-O compound
oxide thin film on a first planar surface of
said underlying dielectric substrate,
forming a second Tl-Ba-Ca-Cu-O compound
oxide thin film on a second planar surface of
said underlying dielectric substrate, and
annealing said underlying dielectric
substrate coated with said first and second Tl-
Ba-Ca-Cu-O compound oxide thin films in an
oxygen atmosphere that contains not less than 5
mol% of thallium at a temperature in the range
of 850EC to 900EC inclusive for a time in the
range of one to three hours inclusive, to
produce substantially uniform superconductive
characteristics in said first and second Tl-Ba-
Ca-Cu-O compound oxide thin films.
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