Patent ID: 11967649
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A semiconductor device comprising:
a first conductor and a second conductor;
a first insulator and a second insulator; and
a first oxide and a second oxide,
wherein the first conductor is disposed to be exposed from a top surface of the first insulator,
wherein the first oxide is disposed over the first insulator and the first conductor,
wherein the second oxide is disposed over the first oxide,
wherein the second oxide comprises a first region, a second region, and a third region positioned between the first region and the second region,
wherein the resistance of the first region and the second region is lower than the resistance of the third region,
wherein the second region of the second oxide is in direct contact with a top surface of the first conductor, wherein the second insulator is disposed over the second oxide, and
wherein the second conductor is disposed over the second insulator.