Patent ID: 11862670
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device comprising:
a drift region having a first type conductivity;
a dielectric film;
an anti-type doping layer located between the drift region and the dielectric film, and having a second type conductivity opposite to the first type conductivity so as to change a current path of a current in the drift region, to thereby prevent the current from being influenced by the dielectric film; and
a drain area disposed within a portion of the drift region, the drain area having the first type conductivity and having a doping concentration higher than that of the drift region,
wherein the anti-type doping layer is disposed to entirely separate the drift region and the drain area from the dielectric film.