| 摘要 |
A transistor includes a substrate region (14) of a first type (P) of conductivity in a semiconductor material layer of the same type (P) of conductivity, at least a first contact region (13) of the first type (P+) of conductivity inside the substrate region (14) and adjacent to a first terminal (C) of the transistor, a well (11) of second type (N) of conductivity placed inside the substrate region (14), wherein the well (11) of second type (N) of conductivity includes at least a second contact region (12) of a second type of conductivity (N+) adjacent to a region of a second terminal (B) of the transistor, and a plurality of third contact regions (10) of the first type of conductivity (P+) adjacent to a plurality of regions of a third terminal (E1, . . . , E3) of the transistor interposed each one (10) and other (12) by proper insulating shapes (20).
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