Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2009-12-28
2011-11-29
Sefer, A. (Department: 2893)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257SE21410, C257SE29256, C438S270000
Reexamination Certificate
active
08067800
ABSTRACT:
A super-junction trench MOSFET with Resurf Stepped Oxide is disclosed. The inventive structure can apply additional freedom for better optimization and manufacturing capability by tuning thick oxide thickness to minimize influence of charge imbalance, trapped charges, etc. . . . . Furthermore, the fabrication method can be implemented more reliably with lower cost.
REFERENCES:
patent: 6982459 (2006-01-01), Suzuki et al.
patent: 2006/0065923 (2006-03-01), Pfirsch
patent: 2008-227533 (2008-09-01), None
Bacon & Thomas PLLC
Force Mos Technology Co. Ltd.
Harrison Monica D
Sefer A.
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