Patent ID: 11959165
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC C  B  H | IPC B  C  H

Claim 1:
2. A semiconductor device comprising:
a transistor;
an oxide semiconductor film comprising a channel of the transistor;
a gate electrode of the transistor overlapping with the oxide semiconductor film with a gate insulating film of the transistor provided therebetween;
an insulating film over the gate electrode; and
a wiring over the insulating film,
wherein the wiring is electrically connected to the oxide semiconductor film via a first opening provided in the insulating film and the gate insulating film,
wherein the oxide semiconductor film comprises a second opening overlapping with the first opening,
wherein the oxide semiconductor film is in contact with the wiring in the second opening, and
wherein the wiring has a region overlapping with a conductive film provided below the oxide semiconductor film.