Patent ID: 7804108

Claim:
A semiconductor device comprising: a collector electrode; a collector region having a first conductivity type and connected to the collector electrode; a drift region having a second conductivity type and connected to the collector region; a body region having the first conductivity type and separated from the collector region by the drift region; a plurality of emitter regions, each emitter region having the second conductivity type and being separated from the drift region by the body region; an emitter electrode connected to the emitter regions; a plurality of trench gate electrodes, each trench gate electrode opposing, via an insulating layer, a portion of the body region separating the drift region and the emitter region, the body region being divided into a plurality of body sections by the plurality of trench gate electrodes, and the body sections being classified into two groups, wherein one group has the emitter region within the body section, and the other group has no emitter region within the body section; a plurality of first trenches formed within each of the body sections having no emitter region; a peripheral body contact region having the first conductivity type and surrounding the emitter regions and the trench gate electrodes,a peripheral region surrounding the peripheral body contact region; and a contact region having the first conductivity type, being formed between the trench gate electrode and the first trench adjacent to the trench gate electrode, not being formed between the first trenches, and being connected to the emitter electrode; wherein a portion of the body section located between the first trenches is electrically connected to the emitter electrode via the contact region.