Patent ID: 6960834
Filing Date: 2005-11-01
Classification: H01L

Abstract:
1. A semiconductor device comprising: a foundation having a first conductive region; an interconnection layer provided separate from the foundation; a first region occupying a range from the foundation to the interconnection layer, and filled with gas or provided with a first interlayer dielectric film; a conductive first connection plug provided in the first region, and electrically connecting the first conductive region and the interconnection layer; a dielectric first support plug provided in the first region, the gas being filled or the first interlayer dielectric film being provided between the first connection plug and the first support plug, the first support plug extending from the interconnection layer to the foundation and having a first Young's modulus; and a support layer provided so that its upper end is positioned at the same height as the upper end of the interconnection layer, and consisting essentially of the same material as the first support plug.