To provide a process of successively forming from an EL layer, a cathode, a
barrier layer and a cover layer in the same multi-chamber. By using a same
film deposition method to form the EL layer and the cover layer, as shown
in FIG. 1A, the EL layer, the cathode, the barrier layer, and the cover
layer can be formed in the same multi-chamber in succession. Thus, as
shown in FIG. 1B, a sealed structure of an EL element can be formed.
