Patent ID: 6359672
Filing Date: 2002-03-19
Classification: G02F,H01L

Abstract:
A method of making an X-ray imaging device, the method comprising the steps of:providing a substrate; forming an array of thin film transistors (TFTs) on the substrate, the array of TFTs including a plurality of address lines connected to the TFTs; forming a first insulating layer over the TFTs on the substrate; forming an a photo-imageable, organic polymer based second insulating layer including acrylic over the first insulating layer on the substrate; forming a plurality of contact holes in the second insulating layer by photoimaging and forming corresponding contact holes in the first insulating layer by etching using the second insulating layer as an etch mask; and forming an array of electrode members on the substrate over the second insulating layer so that the electrode members in the array are in communication with corresponding TFTs through the contact holes, whereby the first insulating layer prevents the second insulating layer from directly contacting the TFTs.