Patent ID: 7539963
Filing Date: 2009-05-26
Classification: H01L

Abstract:
1. A semiconductor device group comprising: a first semiconductor device including a first design macro and a nonvolatile memory, and a second semiconductor device including no nonvolatile memory and a second design macro having functions identical to those of the first design macro, the first design macro including a first element which is formed on a first semiconductor substrate and includes a first active region, a first device isolation region and a first transistor formed in the first active region, the second design macro including a second element which is formed on a second semiconductor substrate discrete from the first semiconductor substrate and includes a second active region, a second device isolation region and a second transistor having characteristics identical to those of the first transistor formed in the second active region, a curvature radius of an upper end of the first active region in a cross section being larger than a curvature radius of an upper end of the second active region in a cross section, and a difference in height between a surface of the first active region and a surface of the first device isolation region being larger than a difference in height between a surface of the second active region and a surface of the second device isolation region.