Patent ID: 7135722

Claim:
A semiconductor device including a field effect transistor having a gate electrode with a wire connected thereto and a gate insulation film with a thickness less than or equal to 6.0 nm, said device comprising: a first transistor group made up of a plurality of said field effect transistors being the same in thickness of said gate insulation film; a second transistor group made up of a plurality of said field effect transistors being the same in thickness of said gate insulation film, wherein the thickness of said gate insulation film is less than the thickness of said gate insulation film of said first transistor group; and a semiconductor substrate with the first and second transistor groups being mounted thereon in a mixed manner, wherein an antenna ratio which is a ratio of an area of said wire to a gate area of said gate electrode is such that a maximal value of said second transistor group is made larger than a maximal value of said first transistor group.