Appeal No. 1999-1745
Application No. 08/657,619
answer, we conclude that the rejection is well taken.
Appellant does not disagree with the examiner's finding
that Collins discloses all the subject mater recited in claims
1 and 2 except for first and second capacitors connected as
claimed. In Figs. 4 to 9 and col. 13, lines 8 to 34, Collins
discloses various coil-capacitor arrangements, wherein
variable capacitance T integral to the source antenna (coil)
30 is used to tune the source to resonance, and load means
(variable capacitance) L "is provided to match the input
impedance of the source antenna 30 to the output impedance of
the associated [RF] power generator 31 (or transmission line
31C)" (col. 13, lines 9 to 14). However, Collins does not
disclose two capacitors coupled as recited in claim 1.
Anderson discloses a mass spectrometer having an RF power
source 3, a chamber 1 in which a plasma is generated, power
being coupled thereto from coil 2, and two capacitors coupled
as recited in claim 1, i.e., a first capacitor C through
2
which one terminal of the coil is coupled to a reference
potential (ground), and a second capacitor C through which
3
the second terminal of the coil is coupled to the power source
3. Capacitors C and C are variable, and together with2 3
3
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