Appeal No. 1998-1077 Page 7
Application No. 08/458,999
thin film of barium and/or strontium lead titanate with a
grain size of 0.02 to 0.2 micrometers in a method as herein
claimed. The examiner (answer, page 4) focuses on an
average grain size for a bulk ceramic as measured by a line
intercept method that is reported in a disclosed preferred
embodiment of appellants’ specification (page 7) and seemingly
concludes therefrom that one of ordinary skill in the art
would have understood that appellants’ original disclosure
only specifies such a larger grain size for a thin film formed
from a lead enhanced perovskite material.
We do not agree since the examiner has not convincingly
explained why the application taken as a whole, as filed, does
not reasonably establish possession of the claimed invention
by appellants. Concerning this matter, we note the
description of thin film capacitors having thin film grain
sizes similar to film thickness and generally 0.02 to 0.20
microns in size at page 3 of the specification coupled with
the disclosure of employing a perovskite material (barium
titanate or barium strontium titanate) with lead added thereto
(specification, page 3, line 29 through page 4, line 22) so as
to ultimately obtain a thin film form material with “grain
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