Patent ID: 6930351

Claim:
A semiconductor device, comprising: a trench isolation insulating film region formed on a main surface of a semiconductor substrate and including a trench isolation insulating film; a first element forming region and a second element forming region formed on first and second sides of the main surface of said semiconductor substrate with said trench isolation insulating film lying between the regions; a memory cell formed in said first element forming region; a transistor formed in said second element forming region; and a conductor portion formed on said trench isolation insulating film so as to overlap with said trench isolation insulating film in a plane; wherein said memory cell includes a first gate insulating film, a first gate electrode formed on said first gate insulating film and including a first conductive layer, a first insulating film formed on said first gate electrode, and a second gate electrode formed on said insulating film and including a second conductive layer, said transistor includes a second gate insulating film, and a third gate electrode formed on said second gate insulating film and including a third conductive layer, said conductor portion includes a first structure located on a side of said first element forming region and constituted of a fourth conductive layer, a second insulating film, and a fifth conductive layer, and a second structure located on a side of said second element forming region and integrally formed with said first structure from a sixth conductive layer, and a first end on a side of said first structure in said conductor portion and a second end on a side of said second structure in said conductor portion are formed such that at least one of a first positional relation and a second positional relation is established, the first positional relation being such that said first end is located within any one of said trench isolation insulating film region and said first element forming region, and the second positional relation being such that said second end is located within any one of said trench isolation insulating film region and said second element forming region.