Active solid-state devices (e.g. – transistors – solid-state diode – Integrated circuit structure with electrically isolated... – Including high voltage or high power devices isolated from...
Reexamination Certificate
2008-07-29
2008-07-29
Menz, Douglas M (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Integrated circuit structure with electrically isolated...
Including high voltage or high power devices isolated from...
C257S502000
Reexamination Certificate
active
07405460
ABSTRACT:
A semiconductor device has a configuration in which more than three kinds of wells are formed with small level differences. One kind of well from among the more than three kinds of wells has a surface level higher than other kinds of wells from among the more than three kinds of wells. The one kind of well is formed adjacent to and self-aligned to at least one kind of well from among the other kinds of wells. The other kinds of wells are different in one of a conductivity type, an impurity concentration and a junction depth, and include at least two kinds of wells having the same surface level.
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Kijima Masato
Ueda Naohiro
Yoshida Masaaki
Dickstein & Shapiro LLP
Menz Douglas M
Ricoh & Company, Ltd.
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