Appeal No. 1998-2309 Page 9
Application No. 08/277,035
precursor material wherein the crystallization is
sensitive to the substrate; and heat-treating the
deposited layers to form a perovskite thin film.
Swartz further discloses (col. 3, line 67 through col. 4, line
7) that:
Due to the presence of the first layer, the second
layer of sol-gel perovskite precursor material after
heat treatment has better crystallinity when
deposited on the first layer than if it would, have
been deposited directly on the substrate and heat
treated. Additionally, the second layer of sol-gel
perovskite precursor material densifies and
crystallizes into a perovskite structure at a lower
temperature and/or with shorter times in the
presence of the first layer.
From this disclosure of Swartz, we find that the sol-gel
perovskite precursor material could be deposited directly on
the substrate, but that lesser crystallinity would result, and
that higher temperatures and/or heating time would be
required. The issue arises as to whether this passage of
Swartz refers to the
depositing of a liquid BST precursor in a common solution, and
depositing the precursor directly on an electrode, as required
by the method of claim 14.
From the disclosure of Swartz that the substrate may be
coated with electrode material, we find that Swartz discloses
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