SEMICONDUCTOR DEVICE WITH VOLTAGE-SUSTAINING REGION CONSTRUCTED BY SEMICONDUCTOR AND INSULATOR CONTAINING CONDUCTIVE REGIONS

摘要

A semiconductor device has at least a cell between two opposite main surfaces. Each cell has a first device feature region contacted with the first main surface and a second device feature region contacted with the second main surface. There is a voltage-sustaining region between the first device feature region and the second device feature region, which includes at least a semiconductor region and an insulator region containing conductive region(s). The semiconductor region and the insulator region contact directly with each other. The structure of such voltage-sustaining region can not only be used to implement high-voltage devices, but further be used as a junction edge technique of high-voltage devices.

主权项

1. A semiconductor device, comprising a first main surface and a second main surface opposite to said first main surface, wherein at least a cell is located between said first main surface and said second main surface, wherein said cell has a first device feature region contacted with said first main surface and a second device feature region contacted with said second main surface; wherein a voltage-sustaining region is located between said first device feature region and said second device feature region, wherein said voltage-sustaining region includes at least a semiconductor region and an insulator region having at least a conductive region inside, said insulator region having at least a conductive region is called as (I+C)-region; wherein said semiconductor region and said (I+C)-region contact directly each other;
said semiconductor device comprising at least two electrodes, wherein one electrode is contacted directly with a portion or the total of said first main surface, another electrode is contacted directly with a portion or the total of said second main surface, and said two electrodes are located outside of the region between said first main surface and said second main surface.