Appeal No. 2001-1305
Application 08/872,782
for the land and via areas. The via is filled and the land is
coated with joining metal (2). The power core itself (3) is
surrounded top and bottom with dielectric material (4), on which
signal lines (5) are disposed. See column 5, lines 10 through
22.
Bindra then discloses the following experiments to indicate
materials which have been used for making the encapsulated power
core. The feasibility experiments were performed by using both a
photosensitive dielectric approach and a non-photosensitive
approach. The non-photosensitive material was a filled
polytetrafluorethylene (PTFE) obtained from Rogers Corporation.
See column 6, lines 6 through 14.
Bindra discloses the structures made using a non-
photosensitive dielectric in column 7, line 44, to column 8, line
38. The only reference to the dielectric material used is found
in column 7, lines 49 through 52, wherein Bindra discloses that
the dielectric material is C. Roger 2810 and 2511 dielectrics.
Upon our review of the reference in its entirety, we fail to
find any teaching or suggestion that two different dielectric
materials would be used for dielectric element 4 and dielectric
element 5 shown in figure 1A as alleged by the Examiner. In
particular, we fail to find that Bindra teaches “at least one
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