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  Semiconductor device and manufacturing method of the sameUSPTO Application #: 20070138566Title: Semiconductor device and manufacturing method of the same Abstract: A semiconductor device which combines reliability and the guarantee of electrical characteristics is provided. A power MOSFET and a protection circuit formed over the same semiconductor substrate are provided. The power MOSFET is a trench gate vertical type P-channel MOSFET and the conduction type of the gate electrode is assumed to be P-type. The protection circuit includes a planar gate horizontal type offset P-channel MOSFET and the conduction type of the gate electrode is assumed to be N-type. These gate electrode and gate electrode are formed in separate steps. (end of abstract)
USPTO Applicaton #: 20070138566 - Class: 257369000 (USPTO) Related Patent Categories: Active Solid-state Devices (e.g., Transistors, Solid-state Diodes), Field Effect Device, Having Insulated Electrode (e.g., Mosfet, Mos Diode), Insulated Gate Field Effect Transistor In Integrated Circuit, Complementary Insulated Gate Field Effect Transistors
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