Patent ID: 9614044
Date: 2017-04-04
CPC Classifications: H01L

Claim:
1. A semiconductor device, comprising: a semiconductor body comprising a load transistor part and a sensor transistor part; a first source region of the load transistor part and a second source region of the sensor transistor part, the first and second source regions being electrically separated from each other; a common gate electrode in a common gate trench extending into the semiconductor body from a first surface, the gate trench extending through the load transistor part and the sensor transistor part, wherein a whole cross-section of the common gate trench extends through both the load transistor part and the sensor transistor part; and a field electrode in a field electrode trench extending into the semiconductor body from the first surface, wherein a maximum dimension of the field electrode trench parallel to the first surface is smaller than a depth of the field electrode trench.