Semiconductor device having a step-like section on the back side of the substrate, and method for manufacturing the same

摘要

A semiconductor device includes a semiconductor substrate having a first main surface having circuit elements formed thereon, a second main surface substantially opposite to the first main surface, and a plurality of side faces provided between the first main surface and the second main surface. The semiconductor device also includes a plurality of external terminals formed over the first main surface and respectively electrically connected to the circuit elements. The second main surface has a first steplike section which extends from a first side face of the plurality of side faces to a second side face opposite to the first side face.