BRIEF DESCRIPTION OF THE DRAWINGS
These objects and other objects and advantages of the present invention will become more apparent upon reading of the following detailed description and the accompanying drawings in which:
FIG. 1 is a sectional view showing the configuration of the semiconductor device of the first embodiment of the present invention;
FIG. 2 is a diagram viewing the Schottky barrier diode in FIG. 1 from overhead;
FIG. 3 is a sectional view showing the state in which reverse bias is applied to the Schottky diode in FIG. 1;
FIG. 4 is a sectional view showing the state of the Schottky diode in FIG. 1 when the forward bias shown is applied after which reverse bias is applied in FIG. 3;
FIG. 5 is a sectional view showing the configuration of the semiconductor device of the second embodiment of the present invention;
FIG. 6 is a sectional view showing the state in which reverse bias is applied to the Schottky diode in FIG. 5;
FIG. 7 is a sectional view showing the state of the Schottky diode in FIG. 5 when the forward bias shown is applied after which reverse bias is applied in FIG. 6;
FIG. 8 is a sectional view showing the configuration of the semiconductor device of the third embodiment of the present invention;
FIG. 9 is a diagram showing an overhead view of the HEMT in FIG. 8;
FIG. 10 is a sectional view showing the OFF state of the HEMT in FIG. 8;
FIG. 11 is the sectional view showing the OFF state of the HEMT in FIG. 8 switched to the ON state;
FIG. 12 is a sectional view showing the configuration of the semiconductor device of the fourth embodiment of the present invention;
FIG. 13 is a sectional view showing the OFF state of the HEMT in FIG. 12;
FIG. 14 is the sectional view showing the OFF state of the HEMT in FIG. 12 switched to the ON state;
FIG. 15 is the sectional view showing the OFF state of the semiconductor device of the other embodiments of the present invention switched to the ON state; and
FIG. 16 is a sectional view showing the configuration of the semiconductor device of the other embodiments of the present invention.