Patent ID: 7151005
Filing Date: 2006-12-19
Classification: H01J

Abstract:
1. A method for manufacturing an electron-source substrate comprising the steps of: electrifying, a plurality of electric conductors arranged on a substrate in a hermetic atmosphere so as to impart an electron-emission function to part of the electric conductors; and setting an average temperature difference during the electrifying step between a region S wherein the substrate satisfies the relational expression: where L L ΔT[K] represents a average temperature difference, E[Pa] represents Young's modulus of the substrate, α[/K] represents a coefficient of linear thermal expansion of the substrate, and σth[Pa] represents a material constant of the substrate; and cutting the substrate into desired sizes after the electrifying step, wherein the cutting step comprises making dust-proof for covering the region in which the electric conductors are arranged and at least one of the steps of wheel-cutter cutting, dicing, and sandblast cutting.