Patent ID: 8581333
Filing Date: 2013-11-12
Classification: H01L

Abstract:
1. A semiconductor device comprising at least a first transistor, a second transistor and a first local wiring, wherein each of the first and second transistors comprises: a pillar made of semiconductor protruding from a surface of a base; a lower conductive region being one of a source and a drain provided in the base; an upper conductive region being the other of the source and the drain provided in an upper portion of the pillar; a gate electrode provided on a side surface of the pillar; and a gate insulating film interposed between the gate electrode and the pillar, wherein the first local wiring comprises: a convex portion protruding from the surface of the base; and a protrusion protruding from a side surface of the convex portion, wherein the convex portion of the first local wiring is connected to the lower conductive region of the first transistor, the protrusion of the first local wiring is connected to the gate electrode of the second transistor, and a lower surface of the protrusion of the first local wiring is arranged at a height equal to or lower than an upper surface of the gate electrode of the second transistor.