Patent ID: 8177987

Claim:
A method for producing an electron-emitting device comprising: providing a substrate; forming a first conductive film on a side surface of an insulation layer including the side surface and a top surface connected to the side surface; forming a second conductive film from the top surface to the side surface and on the first conductive film; and connected to the side surface on the substrate; etching the second conductive film, wherein the second conductive film is formed such that a portion of the second conductive film on the top surface has a higher film density than a portion of the second conductive film on the side surface to provide the portion of the second conductive film having a high film density and the portion of the second conductive film having a low film density, and the portion of the second conductive film having the low film density is etched more than the portion of the second conductive film having the high film density.