Appeal No. 2002-1757
Application No. 09/994,894
This is a decision on an appeal which involves claims 1, 2,
4-29 and 38.1 These are all of the claims remaining in the
application.
The subject matter on appeal relates to an aqueous chemical
mechanical polishing composition comprising soluble cerium
including Ce3+ ions and/or Ce4+ ions in combination with an
oxidizing agent having an oxidation potential greater than Ce4+.
Further details of this appealed subject matter are set forth in
representative independent claims 1 and 38 which read as follows:
1. An aqueous chemical mechanical polishing composition
comprising:
the reaction product of from about 0.05 to about 10.0 wt%
soluble cerium including Ce3+ ions; and
an oxidizing agent having a [sic, an] oxidation potential
greater than Ce4+.
38. An aqueous chemical mechanical polishing composition
comprising:
soluble cerium include Ce4+ ions;
1 Contrary to the representation of the claim 2 copy which
appears in the appendix of the appellants’ brief, this claim
depends from canceled claim 30 rather than pending claim 38. For
purposes of resolving the issues before us on this appeal, we
will assume that claim 2 depends from claim 38. Nevertheless,
the aforementioned claim 2 informality should be corrected by the
appellants upon return of this application to the jurisdiction of
the Examining Corps. We further note that, contrary to the
representation of the claim copies of the brief appendix,
dependent claim 3 is canceled rather than pending and claim 9
depends from claim 8.
2
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