Appeal No. 2006-2832
Application No. 09/833,953
Elements of the Claim: Claims 1 and 3 to 12
In rejecting claims under 35 U.S.C. § 103, the Examiner bears the initial
burden of establishing a prima facie case of obviousness. In re Oetiker, 977 F.2d
1443, 1445, 24 USPQ2d 1443, 1444 (Fed. Cir. 1992). See also In re Piasecki, 745
F.2d 1468, 1472, 223 USPQ 785, 788 (Fed. Cir. 1984).
The examiner presents three references, Zaccherini in view of Erdeljac and
Shao, to establish the elements of the prior art relevant to the rejection of these
claims. All three references present methods for producing semiconductor
electronic devices with doped polycrystalline layers formed on a substrate and
concurrently producing one or more field effect transistors (FETs) and one or more
resistors.
Specifically, and in reference to claim 1, Zaccherini forms a layer (7) over a
transistor gate region (4) and a field oxide region (5). Erdeljac shows elements of
the claimed well, which we discuss in more detail below. Zaccherini forms a
doping barrier (10) above the layer, and applies a first dose of a first dopant (11) of
a first conductivity type at a dosage greater than that required for forming the
transistor gate region electrical properties (4), removes said doping barrier (10) and
7
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