Patent ID: 8633510

Claim:
An IE-type trench gate IGBT comprising: (a) a semiconductor substrate comprising a first main surface and a second main surface; (b) a drift region of a first conductivity type provided within the semiconductor substrate; (c) a cell area provided over the first main surface; and (d) a number of linear unit cell areas provided within the cell area in a planar view; wherein the each linear unit cell area comprises: (d1) a linear active cell area provided from over the first main surface in the drift region to the inside thereof; (d2) a pair of linear trench gate electrodes lying within a pair of trenches provided in the surface of the first main surface so as to sandwich the linear active cell area therebetween from both sides in a planar view; (d3) a second conductivity type body region of a conductivity type opposite to the first conductivity type, the second conductivity type body region being provided in a surface region on the first main surface side, of the drift region; (d4) linear inactive cell areas provided adjacent to each other on both sides so as to sandwich the linear active cell area therebetween from both sides thereof in a planar view with the pair of linear trench gate electrodes as boundaries; (d5) an active section provided within the linear active cell area and divided in a longitudinal direction thereof; (d6) a first conductivity type emitter region of the same conductivity type as the first conductivity type, the first conductivity type emitter region being provided in a surface region on the first main surface side, of the second conductivity type body region at the active section; and (d7) an inactive section not having the first conductivity type emitter region, the inactive section being provided within the linear active cell area and divided in a longitudinal direction thereof.