Patent ID: 8860145

Claim:
A semiconductor device comprising: a semiconductor substrate of a first conductivity type; a drift region of a second conductivity type formed in a surface portion of the semiconductor substrate; a drain electrode connected to the drift region; a gate region of the first conductivity type formed selectively in the surface portion of the semiconductor substrate, the gate region surrounding a connection point of the drift region and the drain electrode, the gate region being in contact with the drift region; a plurality of source regions of the second conductivity type formed in the surface portion of the semiconductor substrate, the source regions extending into the gate region; a source electrode connected to the source regions, wherein the source electrode comprises a first source electrode connected to a first part of the source region and a second source electrode connected to a second part of the source region which is different part from the first part; an insulator film covering the gate region, the source regions, and the drift region; a resistive element, the resistive element being buried in the insulator film in a region between the drain electrode and the gate region or in a region between the drain electrode and the source regions, the resistive element comprising a first end connected to the drain electrode, wherein the resistive element is not connected to the source electrode; a control electrode connected to the gate region; and a first resistance connection wiring, which is insulated from the source electrode, connected to a second end of the resistive element, wherein the source electrode comprises a first source electrode connected to a part of the source region and a second source electrode connected to a remaining part of the source region.