Patent ID: 8138579
Filing Date: 2012-03-20
Classification: H01L

Abstract:
1. A design structure embodied in a machine readable medium for designing, manufacturing, or testing a design, the design structure comprising: a buried oxide (BOX) layer formed on a substrate; a Si film formed on the BOX layer; discontinuous, buried layers having alternating Si regions and SiGe or SiGeC regions, wherein the Si regions and the SiGe or SiGeC regions are formed on the Si film, and the SiGe or SiGeC regions are in troughs; isolation structures at an interface between the Si regions and the SiGe or SiGeC regions to reduce defects between the alternating regions; a Si epitaxial layer formed on the discontinuous, buried layers and the isolation structures; and devices associated with the Si regions and the SiGe or SiGeC regions.