Patent ID: 6828167
Filing Date: 2004-12-07
Classification: G02F,H01L,Y10S

Abstract:
A method for manufacturing a thin film transistor for an LCD, the method comprising:forming a gate wiring extending in a first direction on a substrate including a display region and a pad region positioned at an outer portion of the display region; forming a data wiring extending in a second direction perpendicular to the first direction on the gate wiring with a gate insulating film interposed between the gate wiring and the data wiring; forming an organic passivation film on the data wiring and the gate insulating film; patterning the organic passivation film such that a slope of the organic passivation film decreases as it travels to an edge where a via hole is to be formed, to form an organic passivation film pattern; etching the data wiring and the gate insulating film by using the organic passivation film pattern as a mask to form a first via hole for exposing the data wiring and a second via hole for exposing the gate wiring, respectively; removing an undercut beneath the organic passivation film pattern; and forming a pixel electrode connected to the data wiring through the first via hole and a pad electrode connected to the gate wiring through the second via hole on the organic passivation film pattern.