Patent ID: 10175518

Abstract:
There are provided a display device including a highly reliable wiring having excellent adhesion to an insulating film, and a method for manufacturing the same. A molybdenum-niobium layer has good adhesion to an insulating film, and thus, a first wiring having the molybdenum-niobium layer as an upper layer wiring is tightly adhered to a gate insulating film which is formed on the surface of the upper layer wiring. When there is a need to exchange a semiconductor chip mounted on a connection terminal that is provided at an end portion of a wiring such as a gate lead line or a source lead line formed of the first wiring, an ACF which was used for pressure-bonding of the semiconductor chip remains on the connection terminal even if the semiconductor chip is peeled off. To thoroughly remove the ACF, a force has to be applied to the connection terminal, but because the gate insulating film is tightly adhered to the molybdenum-niobium layer, the gate insulating film protecting the periphery of the connection terminal is not easily peeled off.