| 摘要 |
The reverse breakdown voltage of a conventional insulated gate transistor is greatly increased by the addition of a lightly doped layer between the substrate and a buffer layer of the insulated gate transistor. The addition of the lightly doped layer does not increase the on resistance of the device, nor the cut-off time of the device. The lightly doped layer can be provided as an epitaxial layer along with the other epitaxial layers of the insulated gate transistor.
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