Patent ID: 11942170
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 1:
2. The semiconductor device according to claim 1,
wherein each of the first transistor, the second transistor, the third transistor, the fourth transistor, the fifth transistor, the sixth transistor and the seventh transistor further includes a gate electrode layer, a gate insulating layer, a source electrode layer, a drain electrode layer, a first insulating layer and a second insulating layer,
wherein the gate insulating layer is provided over the gate electrode layer,
wherein the oxide semiconductor layer is provided over the gate insulating layer,
wherein the first insulating layer is provided over the oxide semiconductor layer,
wherein the first insulating layer has a region in contact with the oxide semiconductor layer,
wherein the first insulating layer includes silicon and oxide, and
wherein the second insulating layer includes silicon and nitrogen.