Patent ID: 8766253

Claim:
A semiconductor device comprising: a first wiring; a second wiring; and a third wiring between the first wiring and the second wiring, wherein a potential of the third wiring is lower than potentials of the first wiring and the second wiring , wherein the first wiring is electrically connected to the third wiring through a first transistor, wherein the first transistor comprises a first gate electrode and a first source electrode electrically connected with each other, and a first semiconductor region, wherein the second wiring is electrically connected to the third wiring through a second transistor, wherein the second transistor comprises a second gate electrode and a second source electrode electrically connected with each other, and a second semiconductor region, wherein the first and second semiconductor regions are provided above or below the first wiring, the second wiring, and the third wiring, and wherein the first and second semiconductor regions are provided in a continuous oxide semiconductor film.