Patent ID: 7381578

Claim:
A method for electrifying a plurality of electric conductors arranged on a substrate, comprising the steps of: covering a substrate comprising a region S 0 in which the plurality of electric conductors are arranged and a region S 1 located on a periphery of the region S 0 with a container such that the region S 0 is positioned inside the container and the region S 1 is positioned outside the container; exhausting gas such that a pressure in the container is lower than a pressure outside the container; and electrifying the plurality of electric conductors, wherein a width L 0 [m] of the region S 0 and a width L 1 of the region S 1 on the substrate satisfies the relational expression: L 1 /L 0 >EαΔT/σth −1 where ΔT[K] represents an average temperature difference between the region S 0 and the region S 1 on the substrate in the electrifying step, the average temperature difference being 15° C. or more 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.