Patent ID: 8742512
Filing Date: 2014-06-03
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor substrate; a first region on said semiconductor substrate, in which a first transistor is formed, the first transistor including a first gate insulating film containing a high dielectric constant material and a first metal gate electrode formed on the first gate insulating film; a second region adjacent to said first region on said semiconductor substrate, in which a second transistor is formed, the second transistor including a second gate insulating film containing a high dielectric constant material and a second metal gate electrode formed on the second gate insulating film, a layered structure of electrode materials of the second transistor being different from a layered structure of electrode materials of the first transistor; a trench isolation region embedded in said semiconductor substrate at a border between said first and second regions; and a first line and a second line that have different potentials and that are arranged above said semiconductor substrate, each of said first and second lines including at least one of the first gate insulating film and the second gate insulating film, wherein only one of said first line and said second line crosses said trench isolation region above said semiconductor substrate.