Patent ID: 7755138
Filing Date: 2010-07-13
Classification: H01L

Abstract:
1. A semiconductor device comprising: a first semiconductor layer of a first conductivity type; a second semiconductor layer of a first conductivity type provided on a major surface of the first semiconductor layer; a third semiconductor layer of a second conductivity type provided above the major surface of the first semiconductor layer adjacent to the second semiconductor layer, and forming a periodical arrangement structure in conjunction with the second semiconductor layer in a lateral direction generally parallel to the major surface of the first semiconductor layer; a fourth semiconductor layer of a second conductivity type provided on the third semiconductor layer; a fifth semiconductor layer of a first conductivity type selectively provided on a surface of the fourth semiconductor layer; a first main electrode electrically connected to the first semiconductor layer; a gate insulating film provided on a portion being in contact with the fourth semiconductor layer, a portion being in contact with the fifth semiconductor layer and a portion being in contact with the second semiconductor layer; a control electrode provided opposed to the fourth semiconductor layer, the fifth semiconductor layer and the second semiconductor layer via the gate insulating film; and a second main electrode electrically connected to the fourth semiconductor layer, the fifth semiconductor layer and the second semiconductor layer, the second main electrode being in contact with a surface of the second semiconductor layer located between the control electrodes to form a Schottky junction.