Fabrication method of light-emitting device

Abstract

An electronic device or a light-emitting device with high design flexibility and favorable reliability is provided by the following steps. A light-emitting layer containing a first organic compound and a second organic compound is formed over a substrate provided with a first electrode, the substrate is held under lighting of a light source whose shortest-wavelength emission edge among emission edges in an emission spectrum is positioned at a wavelength shorter than a wavelength of the longest-wavelength absorption edge among absorption edges in an absorption spectrum of the first organic compound and at a wavelength longer than a wavelength of the longest-wavelength absorption edge among absorption edges in an absorption spectrum of the second organic compound, a sacrificial layer is formed over the light-emitting layer, at least the light-emitting layer is processed into an island shape by a photolithography method, and a second electrode is formed over the light-emitting layer.

Dependencies are inferred from the claim text.