Semiconductor device

Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode

Reexamination Certificate

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C257S368000, C257S392000

Reexamination Certificate

active

06864550

ABSTRACT:
A source electrode Vddis formed in a region between a field PMOS1and a field PMOS2as high side switches of a latch circuit. This latch circuit is utilized in the state where a lower side of one of the two high side switches is completely depleted. Field PMOS1and field PMOS2share a P+-type impurity diffusion region, an N+-type impurity diffusion region and a P+-type impurity diffusion region, which are connected to source electrode Vdd. It is therefore possible to provide a semiconductor device capable of reducing the area thereof in the direction parallel to the main surface of a semiconductor substrate.

REFERENCES:
patent: 20020000867 (2002-01-01), Daniel et al.
patent: 10-004143 (1988-01-01), None
“1200V High-Side Lateral MOSFET in Junction-Isolated Power IC Technology Using Two Field-Reduction Layers”, J.S. Ajit et al.,Proceedings of The 5th International Symposium on Power Semiconductor Devices and IC'sMay 18-20, 1993, pp 230-235.
“Self-Shielding: New High-Voltage Inter-Connection Technique for HVICs”, Tatsuhiko Fujihara et al., 1996 IEEE, pp. 231-234.

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