Appeal No. 95-3082
Application No. 08/117,546
5, lines 46-51). Appellants disclose that “[a]lcohols,
phenols, and primary or secondary amines used in the above
reaction [with the quinonediazide sulfonyl halide] include
those compounds” which are described by Kosai on pages 339-357
(specification, page 11, last paragraph). Appellants also
acknowledge that “commercial i-line photoresists use
predominantly phenol esters” of the 4- and 5-isomers of 1,2-
naphthaquinone diazide (specification, page 2, emphasis
added). Therefore, for the foregoing reasons, we cannot agree
with the examiner that the term “esters” in claim 4 and in the
disclosure of Hosaka necessarily should be construed as
substantially identical to the term “phenol esters” as recited
in the appealed claims. From this record, we agree with
appellants that a portion of the esters disclosed by Hosaka
are not “phenol esters” within the common meaning of this
term.
We agree with the examiner that the list of isomers of
1,2-naphthaquinone diazide in claim 4 of Hosaka “is of a size
that a skilled artisan would readily envisage the instant
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