Appeal 2007-2105
Application 10/762,445
an edge portion of the floating gate 4 via the tunnel oxide film 3 (col. 10, ll.
1-5).
4. Hori further shows that the source region 7 is connected to a bit
line (fig. 1A; col. 10, ll. 5-6).
5. Hori refers to the high-concentration impurity layer 7a and the
low-concentration impurity layer 7b of the source region 7 as a high-
concentration source region 7a and a low-concentration source region 7b,
respectively (col. 10, ll. 6-11).
6. In a plan view of the memory cell depicted in Figure 1B, Hori
shows the regions of high and low concentration source 7a and 7b as well as
drain 8a and 8b in relationship with the floating gate (col. 10, ll. 24-46).
PRINCIPLES OF LAW
A rejection for anticipation requires that the four corners of a single
prior art document describe every element of the claimed invention, either
expressly or inherently, such that a person of ordinary skill in the art could
practice the invention without undue experimentation. See Atlas Powder
Co. v. IRECO, Inc., 190 F.3d 1342, 1347, 51 USPQ2d 1943, 1946 (Fed. Cir.
1999); In re Paulsen, 30 F.3d 1475, 1478-79, 31 USPQ2d 1671, 1673 (Fed.
Cir. 1994).
ANALYSIS
As described above, the source region of Hori includes a low
concentration region 7b and a high concentration region 7a. The Examiner’s
characterization of the high concentration region 7a as the Vss appears to
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