Procedure for formation of relief formations on the surface on a substrate for use in production of flat screen displays that use micropoint electron sources

摘要

Procedure involves formation of a masking layer (108) on a substrate (100). Typically the masking layer is a material such as porous aluminum, the transverse holes (110) of which are used in the formation of relief formations (112) on the substrate surface. An Independent claim is made for a device using the an etching mask produced according to the main claim in which a micropoint source of electrons is created from a cathode substrate in which the micropoints are formed in openings created by use of the relief mask.