Patent ID: 9171879
Filing Date: 2015-10-27
Classification: H01L

Abstract:
1. A method for fabricating a sensor comprising: forming a pattern of a bias line on a base substrate by using a first patterning process; forming a pattern of a transparent electrode on and electrically contacting the bias line, a pattern of a photodiode on the transparent electrode, a pattern of a receive electrode on the photodiode, a pattern of a source electrode connected to the receive electrode and a pattern of a drain electrode disposed opposed to the source electrode to form a channel, a pattern of a data line connected to the drain electrode and a pattern of an ohmic layer on the source electrode and the drain electrode, by using a second patterning process; forming a pattern of an active layer on the ohmic layer and the channel, a pattern of a first passivation layer on the active layer and overlaying the base substrate, a pattern of a gate electrode on the first passivation layer and above the channel, and a pattern of a gate line connected to the gate electrode, by using a third patterning process; and forming a pattern of a second passivation layer overlaying the base substrate by using the fourth patterning process, wherein the second passivation layer has a signal-transmitting area via hole, wherein forming the pattern of the second passivation layer is performed after forming the pattern of the gate electrode and the pattern of the gate line.