Patent ID: 7598129
Filing Date: 2009-10-06
Classification: H01L

Abstract:
1. A method for manufacturing a light-emitting device having, at least a first semiconductor element and a second semiconductor element in one pixel of the light-emitting device, said method comprising the steps of: forming a gate electrode by discharging a composite containing a first conductive material over a substrate; forming a gate insulating film over the gate electrode forming a first semiconductor film over the gate insulating film; forming a second semiconductor film containing an impurity element having a conductivity type over the first semiconductor film; forming a source electrode and a drain electrode by discharging a composite containing a second conductive material over the second semiconductor film; forming a source region and a drain region by removing a part of the second semiconductor film using the source electrode and the drain electrode as a mask; forming an insulating film above a portion serving as a channel region in the semiconductor film; forming an island-like semiconductor film by removing a part of the first semiconductor film using the source electrode, the drain electrode, and the insulating film as a mask; wherein a contact hole is formed by removing at least a part of the gate insulating film over a gate electrode of the second semiconductor element; and a wiring for connecting the source electrode or the drain electrode of the first semiconductor element to the gate electrode of the second semiconductor element is formed by discharging a composite containing a third conductive material via the contact hole.