Semiconductor device and method for manufacturing the same
First Claim
1. A method for manufacturing a semiconductor device, comprising:
- stacking a first conductive layer having a light-transmitting property and a second conductive layer over a substrate having an insulating surface;
forming a first mask over the second conductive layer;
etching the first conductive layer to form a first electrode and a second electrode and etching the second conductive layer to form a third conductive layer, by using the first mask;
recessing the first mask to form a second mask;
etching the third conductive layer by using the second mask to form a first wiring;
forming a semiconductor layer that has a light-transmitting property and is electrically connected to the first electrode and the second electrode;
forming an insulating layer so as to cover the semiconductor layer;
stacking a fourth conductive layer having a light-transmitting property and a fifth conductive layer over the insulating layer;
forming a third mask over the fifth conductive layer;
etching the fourth conductive layer to form a third electrode and etching the fifth conductive layer to form a sixth conductive layer, by using the third mask;
recessing the third mask to form a fourth mask; and
etching the sixth conductive layer by using the fourth mask to form a second wiring.
0 Assignments
0 Petitions
Accused Products
Abstract
A semiconductor device includes a substrate having an insulating surface; a light-transmitting first electrode provided over the substrate; a light-transmitting second electrode provided over the substrate; a light-transmitting semiconductor layer provided so as to be electrically connected to the first electrode and the second electrode; a first wiring electrically connected to the first electrode; an insulating layer provided so as to cover at least the semiconductor layer; a light-transmitting third electrode provided over the insulating layer in a region overlapping with the semiconductor layer; and a second wiring electrically connected to the third electrode.
149 Citations
11 Claims
-
1. A method for manufacturing a semiconductor device, comprising:
-
stacking a first conductive layer having a light-transmitting property and a second conductive layer over a substrate having an insulating surface; forming a first mask over the second conductive layer; etching the first conductive layer to form a first electrode and a second electrode and etching the second conductive layer to form a third conductive layer, by using the first mask; recessing the first mask to form a second mask; etching the third conductive layer by using the second mask to form a first wiring; forming a semiconductor layer that has a light-transmitting property and is electrically connected to the first electrode and the second electrode; forming an insulating layer so as to cover the semiconductor layer; stacking a fourth conductive layer having a light-transmitting property and a fifth conductive layer over the insulating layer; forming a third mask over the fifth conductive layer; etching the fourth conductive layer to form a third electrode and etching the fifth conductive layer to form a sixth conductive layer, by using the third mask; recessing the third mask to form a fourth mask; and etching the sixth conductive layer by using the fourth mask to form a second wiring.
-
-
2. A method for manufacturing a semiconductor device, comprising:
-
stacking a first conductive layer having a light-transmitting property and a second conductive layer over a substrate having an insulating surface; forming a first mask over the second conductive layer; etching the first conductive layer to form a first electrode and a second electrode and etching the second conductive layer to form a third conductive layer, by using the first mask; recessing the first mask to form a second mask; etching the third conductive layer by using the second mask to form a first wiring; forming a semiconductor layer that has a light-transmitting property and is electrically connected to the first electrode and the second electrode; forming an insulating layer so as to cover the semiconductor layer; stacking a fourth conductive layer having a light-transmitting property and a fifth conductive layer over the insulating layer; forming a third mask over the fifth conductive layer; etching the fourth conductive layer to form a third electrode and etching the fifth conductive layer to form a sixth conductive layer, by using the third mask; recessing the third mask to form a fourth mask; and etching the sixth conductive layer by using the fourth mask to form a second wiring, wherein the semiconductor layer comprises an oxide semiconductor containing indium, gallium, and zinc. - View Dependent Claims (8, 9, 10, 11)
-
-
3. A method for manufacturing a display device comprising:
-
stacking a first conductive layer having a light-transmitting property and a second conductive layer over a substrate having an insulating surface; forming a first mask over the second conductive layer; etching the first conductive layer to form a first electrode and a second electrode and etching the second conductive layer to form a third conductive layer, by using the first mask; recessing the first mask to form a second mask; etching the third conductive layer by using the second mask to form a first wiring; forming a semiconductor layer that has a light-transmitting property and is electrically connected to the first electrode and the second electrode; forming an insulating layer so as to cover the semiconductor layer; stacking a fourth conductive layer having a light-transmitting property and a fifth conductive layer over the insulating layer; forming a third mask over the fifth conductive layer; etching the fourth conductive layer to form a third electrode and etching the fifth conductive layer to form a sixth conductive layer, by using the third mask; recessing the third mask to form a fourth mask; and etching the sixth conductive layer by using the fourth mask to form a second wiring, wherein the semiconductor layer comprises an oxide semiconductor. - View Dependent Claims (4, 5, 6, 7)
-
Specification