Patent ID: 9461178
Filing Date: 2016-10-04
CPC Classification: G02F,H01L

Claim Text:
1. A semiconductor device comprising: a first conductive layer over an insulating surface; a first insulating layer over the first conductive layer; an oxide semiconductor layer over the first insulating layer; a second conductive layer over the oxide semiconductor layer; a third conductive layer over the oxide semiconductor layer; a fourth conductive layer over the oxide semiconductor layer; a second insulating layer over the second conductive layer, the third conductive layer, and the fourth conductive layer; a fifth conductive layer over the second insulating layer; and a sixth conductive layer over the second insulating layer, wherein the fourth conductive layer is between the second conductive layer and the third conductive layer, wherein the oxide semiconductor layer includes a first area overlapping with the second conductive layer, wherein the oxide semiconductor layer includes a second area overlapping with the third conductive layer, wherein the oxide semiconductor layer includes a third area overlapping with the fourth conductive layer, wherein the oxide semiconductor layer includes a fourth area between the first area and the third area, wherein the oxide semiconductor layer includes a fifth area between the second area and the third area, wherein the first conductive layer includes an area overlapping with the fourth area, wherein the fifth conductive layer includes an area overlapping with the fourth area, and wherein the sixth conductive layer includes an area overlapping with the fifth area.