Manufacturing method for a display device
First Claim
1. A method for manufacturing a device comprising the steps of:
- forming a first insulating film over a substrate;
forming a first opening in the first insulating film;
forming a first conductive film over the first insulating film and in the first opening;
forming a second conductive film over the first conductive film and in the first opening so as to fill in the first opening;
etching the second conductive film so as to form a conductive layer in the first opening and a first columnar conductive member on a portion of the second conductive film, the portion being located apart from the first opening;
forming a third conductive film over the first conductive film, the conductive layer, and the first columnar conductive member, thereby, forming a first projection over the first columnar conductive member;
forming a second insulating film over the third conductive film; and
forming a fourth conductive film over the second insulating film and the third conductive film so as to be electrically connected to a top surface of the first projection.
0 Assignments
0 Petitions
Accused Products
Abstract
A technology for easily forming a multi-layer wiring structure that is fine and reliable. In the multi-layer wiring structure, the lower-layer wiring and the upper-layer wiring that are formed to sandwich an insulating layer are electrically connected to each other in a projection formed in the lower-layer wiring. The projection includes a columnar conductive member and the upper and lower layers thereof and each of the lower layer and the upper layer is formed of a conductive layer formed over the entire lower-layer wiring. The upper-layer is electrically connected to the lower-layer wiring in the portion where the projection is exposed substantially on the same plane as the top surface of the insulating layer.
28 Citations
16 Claims
-
1. A method for manufacturing a device comprising the steps of:
-
forming a first insulating film over a substrate; forming a first opening in the first insulating film; forming a first conductive film over the first insulating film and in the first opening; forming a second conductive film over the first conductive film and in the first opening so as to fill in the first opening; etching the second conductive film so as to form a conductive layer in the first opening and a first columnar conductive member on a portion of the second conductive film, the portion being located apart from the first opening; forming a third conductive film over the first conductive film, the conductive layer, and the first columnar conductive member, thereby, forming a first projection over the first columnar conductive member; forming a second insulating film over the third conductive film; and forming a fourth conductive film over the second insulating film and the third conductive film so as to be electrically connected to a top surface of the first projection. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method for manufacturing a semiconductor device comprising the steps of:
-
forming a first insulating film over a substrate; forming a first opening in the first insulating film; forming a first conductive film over the first insulating film and in the first opening; forming a second conductive film over the first conductive film and in the first opening so as to fill in the first opening; etching the second conductive film so as to form a conductive layer in the first opening and a columnar conductive member on a portion of the second conductive film, the portion being located apart from the first opening; forming a third conductive film over the first conductive film, the conductive layer, and the columnar conductive member, thereby, forming a projection over the columnar conductive member; forming a second insulating film over the third conductive film; forming a fourth conductive film over the second insulating film and the third conductive film so as to be electrically connected to a top surface of the projection; forming a third insulating film over the second insulating film and the fourth conductive film; forming a second opening in the third insulating film so as to expose the fourth conductive film; forming a light emitting layer at least in the second opening; and forming a fifth conductive film over the third insulating film and the light emitting layer. - View Dependent Claims (8, 9, 10, 11)
-
-
12. A method for manufacturing a semiconductor device comprising the steps of:
-
forming a first insulating film over a substrate; forming a first opening in the first insulating film; forming a first conductive film over the first insulating film and in the first opening; forming a second conductive film over the first conductive film and in the first opening so as to fill in the first opening; etching the second conductive film so as to form a conductive layer in the first opening and a columnar conductive member on a portion of the second conductive film, the portion being located apart from the first opening; forming a third conductive film over the first conductive film, the conductive layer, and the columnar conductive member, thereby, forming a projection over the columnar conductive member; forming a second insulating film over the third conductive film; forming a fourth conductive film over the second insulating film and the third conductive film so as to be electrically connected to a top surface of the projection; forming a liquid crystal layer over the second insulating film and the fourth conductive film; and forming a fifth conductive film over the liquid crystal layer. - View Dependent Claims (13, 14, 15, 16)
-
Specification