| 摘要 |
An aspect the present invention is to provide a semiconductor device including at least one MISFET structure having an element isolation region formed on a surface portion of a semiconductor substrate to have a closed region, an element region formed on the surface region of the semiconductor substrate to surround the element isolation region, a gate insulating film formed to cover at least the surface of the element region, a contact region formed on the element isolation region, and at least four gate electrodes connected to the contact region and formed on the surface of the element region via the gate insulating film to extend to at least outside the element region.
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