Patent ID: 11935963
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 10:
11. A semiconductor device comprising:
a semiconductor layer;
a first insulating layer;
a second insulating layer; and
a first conductive layer,
wherein the first insulating layer is in contact with a top surface and a side surface of the semiconductor layer,
wherein the first conductive layer is over the first insulating layer,
wherein the second insulating layer is over the semiconductor layer,
wherein the semiconductor layer comprises a metal oxide,
wherein the semiconductor layer comprises a first region overlapping with the first conductive layer and a second region not overlapping with the first conductive layer,
wherein the first insulating layer comprises a third region overlapping with the first conductive layer and a fourth region not overlapping with the first conductive layer,
wherein the fourth region is in contact with the second insulating layer,
wherein the fourth region is in contact with the second region,
wherein the second insulating layer, the second region and the fourth region comprise a first element and oxygen, and
wherein the first element is one or more of phosphorus and boron.