Appeal No. 2000-0882
Application No. 08/890,582
any known conductive adhesive used for a printed circuit board
including the adhesive disclosed by Capote." We agree.
Although Iliou discloses Ablefilm ECF 550, Iliou does not
limit teachings to any specific conductive adhesive. Accordingly,
any known conductive adhesives could be used. Capote teaches
(column 1, line 53-column 2, lines 5) that the object of his
invention is to provide materials which are conductive, are highly
resistant to corrosion and degradation at high temperatures and
relative humidities while forming strong adhesive bonds with good
high temperature stability. Thus, the skilled artisan would have
been motivated to use the adhesives of Capote in Iliou's device.
The conductive adhesives disclosed by Capote include epoxies
(see columns 5 and 6), among others (though epoxy is the
preferred material), and 0-65% of a first metal or 6-65% of a
second metal. The first metal may be copper, silver, aluminum,
gold, platinum, palladium, beryllium, rhodium, nickel, cobalt,
iron, or molybdenum, and the second metal may be Sn, Bi, Pb, Cd,
Zn, Ga, In, Te, Hg, Tl, Sb, Se, or Po. Of these metals, at least
aluminum, beryllium, nickel, cobalt, iron, Sn, Pb, Cd, Zn, Ga,
In, Te, Tl and Se have EMF values less than zero, according to
the CRC Handbook of Chemistry and Physics pp. D-120 - D-120
(55th ed. 1974-75). Thus, the combination of Iliou and Capote
would include an adhesive formed of epoxy mixed with up to 65% of
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