SEMICONDUCTOR CIRCUIT DEVICE, AND METHOD FOR MANUFACTURING THE SEMICONDUCTOR CIRCUIT DEVICE

摘要

To provide a semiconductor integrated circuit device, which has components of a fin-type FET suited for a high integration LSI and formed on a supporting substrate and which uses wires buried in trenches of the supporting substrate for connecting the components, and a method for manufacturing the semiconductor integrated circuit device. The semiconductor integrated circuit device comprises a MOS transistor element or the fin-type FET having a stereoscopic isolation area of silicon formed on a supporting substrate and a gate electrode formed on the surface of the stereoscopic isolation area of silicon, buried wires buried in trenches formed in self-alignment in the stereoscopic isolation area of silicon of the supporting substrate, and on-substrate wires on the supporting substrate. The MOS transistor elements are connected by the buried wires and the on-subsrate wires.