Appeal No. 1999-0884
Application No. 08/464,577
The Examiner has failed to set forth a prima facie case.
It is the burden of the Examiner to establish why one having
ordinary skill in the art would have been led to the claimed
invention by the express teachings or suggestions found
in the prior art, or by implications contained in such
teachings or suggestions. In re Sernaker, 702 F.2d 989, 995,
217 USPQ 1, 6 (Fed. Cir. 1983). "Additionally, when
determining obviousness, the claimed invention should be
considered as a whole; there is no legally recognizable
'heart' of the invention." Para-Ordnance Mfg. v. SGS
Importers Int’l, Inc., 73 F.3d 1085, 1087, 37 USPQ2d 1237,
1239 (Fed. Cir. 1995), cert. denied, 117 S.Ct. 80 (1996)
citing W. L. Gore & Assocs., Inc. v. Garlock, Inc., 721 F.2d
1540, 1548, 220 USPQ 303, 309 (Fed. Cir. 1983), cert. denied,
469 U.S. 851 (1984).
On pages 22-23 of the Brief, Appellants argue that Sugano
does not teach etching the metallic layer to form a heat sink
separate from the metallic leads for the semiconductor
devices.
Further, Appellants contend that Kitano is directed to a lead
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