Deposition mask, a method of manufacturing a deposition mask device, and a manufacturing method of an organic semiconductor device

Provided are: a vapor deposition mask which can be light weight and have high definition even when the size is increased; a method for producing a vapor deposition mask device whereby it is possible to accurately position the aforementioned vapor mask on a frame; and a method for producing an organic semiconductor element whereby it is possible to produce a high-definition organic semiconductor element. A metal mask on which slits are disposed, and a resin mask which is positioned on the surface of the metal mask and on which multiple openings corresponding to the pattern formed by means of vapor deposition are horizontally and vertically arranged in rows are laminated.