Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2007-11-27
2007-11-27
Sarkar, Asok Kumar (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257SE29300
Reexamination Certificate
active
10762445
ABSTRACT:
According to one exemplary embodiment, a floating gate memory cell comprises a stacked gate structure situated on a substrate and situated over a channel region in the substrate. The floating gate memory cell further comprises a recess formed in the substrate adjacent to the stacked gate structure, where the recess has a sidewall, a bottom, and a depth. According to this exemplary embodiment, the floating gate memory cell further comprises a source situated adjacent to the sidewall of the recess and under the stacked gate structure. The floating gate memory cell further comprises a Vss connection region situated under the bottom of the recess and under the source, where the Vss connection region is connected to the source. The Vss connection region being situated under the bottom of the recess causes the source to have a reduced lateral diffusion in the channel region.
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Chang Kuo-Tung
Fang Shenqing
Fastow Richard
Hui Angela T.
Kinoshita Hiroyuki
Farjami & Farjami LLP
Sarkar Asok Kumar
Spansion LLC
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