Patent ID: 8779492
Filing Date: 2014-07-15
Classification: H01L

Abstract:
1. A device comprising: a semiconductor body; an active semiconductor region projecting from the semiconductor body; an isolation region defining the active semiconductor region and being adjacent to the active semiconductor region; a mask insulating film formed over the active semiconductor region and the isolation region; a projecting portion including a part of the active semiconductor region and a part of the isolation region connected with a first side surface of the part of the active semiconductor region; a first electrode covering a side surface of the projecting portion; a first insulating film intervening between the first electrode and a second side surface of the part of the active semiconductor region of the projecting portion, the first insulating film being partially breakdown such that the first electrode is electrically connected with the part of the active semiconductor region of the projecting portion; a first contact plug formed over and electrically connected with the first electrode; an impurity diffusion region being adjacent to a bottom of the part of the active semiconductor region of the projecting portion; and a second contact plug formed over and electrically connected with the impurity diffusion region, wherein the first contact plug is formed over the part of the isolation region of the projecting portion, and wherein the first contact plug is in contact with the part of the isolation region of the projecting portion.