Appeal No. 95-3312
Application 08/167,437
page 10). This argument is not well taken because appellants’
specification is not prior art.
The examiner argues that Aida discloses depositing
superconducting thin films on different substrates such as MgO
and shows that there is minimal reaction between the two
layers and that superconducting properties will not
deteriorate if a
superconducting layer is formed adjacent to MgO layer (answer,
page 4). Aida teaches that YBa Cu O and MgO have similar
2 3 7-x
coefficients of thermal expansion (Table 1, page L1490) and
that a film of a YBa Cu O superconductor on an MgO substrate
2 3 7-x
has a critical temperature of 81EK (page L1489). We do not
find in Aida, however, a teaching that there is minimal
reaction between MgO and a YBa Cu O superconductor layer, as
2 3 7-x
asserted by the examiner.
The examiner argues that Lee’s zirconium oxide buffer
layer has minimal reaction with the superconducting layer and
that it would have been obvious to one of ordinary skill in
the art to substitute other insulating films, such as MgO, as
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