Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2011-08-23
2011-08-23
Nhu, David (Department: 2895)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S391000, C257S401000, C257SE21006, C257SE21147, C257SE21247, C257SE21545, C257SE21548
Reexamination Certificate
active
08004048
ABSTRACT:
A semiconductor device having a buried gate that can realize a reduction in gate-induced drain leakage is presented. The semiconductor device includes a semiconductor substrate, a buried gate, and a barrier layer. The semiconductor substrate has a groove. The buried gate is formed in a lower portion of the groove and has a lower portion wider than an upper portion. The barrier layer is formed on sidewalls of the upper portion of the buried gate.
REFERENCES:
patent: 6476444 (2002-11-01), Min
patent: 2008/0157194 (2008-07-01), Lee et al.
patent: 2008/0203455 (2008-08-01), Jang et al.
patent: 2008/0296670 (2008-12-01), Lee et al.
patent: 1020080089095 (2008-10-01), None
Hynix / Semiconductor Inc.
Ladas & Parry LLP
Nhu David
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