Patent ID: 7719033
Filing Date: 2010-05-18
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor substrate; a lower MOS transistor having a lower gate electrode on the semiconductor substrate; a first interlayer insulating layer disposed on the semiconductor substrate having the lower MOS transistor; a semiconductor body disposed on or in the interlayer insulating layer; a thin film transistor including a source region and a drain region, which are disposed in the semiconductor body, and first and second gate electrodes, wherein the first gate electrode is positioned underneath a bottom portion of the lower semiconductor body disposed between the source and drain regions and the second electrode covers a top portion of the semiconductor body disposed between the source and drain regions, wherein the first and second gate electrodes are spaced apart from each other; a second interlayer insulating layer on the semiconductor substrate having the thin film transistor; and a contact plug penetrating the second interlayer insulating layer and being electrically connected to the first and the second gate electrodes.