High withstanding voltage transistor

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

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257409, H01L 2701, H01L 2976

Patent

active

052647200

ABSTRACT:
A high withstanding voltage transistor is provided with a substrate with its main surface at least part of which is electrically insulated, and a plurality of MOS type field effect transistors of the same channel type that are formed on the insulated main surface of the substrate, the channel regions of the number of MOS type field effect transistors are electrically separated respectively, the gates of the plurality of MOS type field effect transistors are mutually connected electrically, between and among the plurality of MOS type field effect transistors, the source of one transistor is connected to the drain of another transistor, and connecting in series the plurality of MOS type field effect transistors, they are made into a single transistor, thereby dividing the voltage applied in between the drain and the source of this high withstanding voltage transistor with depletion layer of the respective transistors and in turn improving the withstanding voltage of the whole.

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