| 摘要 |
PROBLEM TO BE SOLVED: To provide a mask and its manufacturing method, EL equipment and its manufacturing method, and an electric device, in which effective cooling is possible. SOLUTION: The manufacturing method of the mask includes attaching a 2nd substrate 20, in which two or more penetration holes 22 have been formed in a 1st substrate 10, in which the opening 12 has been formed. The 2nd substrate 20 is attached so that the two or more penetration holes 22 may be located inside the opening 12. A slot 14 is formed in the face, which counters the 2nd substrate 20 in the 1st substrate 10. The slot 14 forms a flow way between the 1st and 2nd substrates 10 and 20.
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