| abstract |
Kind Code: A1 An ink composition for forming a discoloration layer that changes color by plasma treatment, wherein the discoloration layer gasifies or scatters as fine debris by plasma treatment affects electronic device characteristics. Disclosed is a plasma treatment detection ink composition which is suppressed to such an extent that it does not reach and has good heat resistance. An ink composition for forming a color-changing layer that changes color by plasma treatment, comprising at least one element selected from the group consisting of Mo, W, Sn, V, Ce, Te, and Bi A plasma treatment detection ink composition comprising oxide particles and a binder resin. [Selection figure] None |