NOVELTY - The equipment vapor-deposits copper-indium diselenide or -sulfide (CIS), copper-indium gallium diselenide (CIGS) or copper-indium gallium sulfide diselenide (CIGSSe). The wire is made of Cu, In Ga, S, Se and/or any combination of them. It includes more than one component of the layer. It includes all components of the layer. Two wires may be used, each of which contain one or two components of the layer.    USE - Vapor deposition equipment forming high- efficiency chalcopyrite solar cells.    ADVANTAGE - Layers of chalcopyrite compounds only three microns thick, form high efficiency photo-absorbers in photovoltaic cells. Such cells can be flexible. Because the layer is thin, the consumption of costly raw materials is especially small. The new method greatly simplifies production. It is economical and well-controlled. At the same time, the quality of the coating produced is high. Sequential- or simultaneous vaporization methods can be used. Boat vaporization sources are used in combination, especially for sulfur or selenium. Other known equipment, listed in the disclosure, can be used in accordance with this disclosure. A stepper-motor controls the rate of wire feed. Very high vaporization rates and productivity are achievable. Uniform layers are produced over the entire substrate, contrasting with results from point sources. Feed is rapidly started and stopped, minimizing waste of valuable materials. The plant itself undergoes reduced self-plating, further reducing waste. Cleaning requirements are minimized and production availability is maximized. Co-vaporization plants are constructed more compactly.    DETAILED DESCRIPTION - Equipment provided, deposits components of the layer by flash vaporization. It supplies wire to a vaporization boat in a controlled manner. The deposition substrate is glass. By sequential deposition of components, a stack of layers is produced. Subsequently, when the substrate temperature is raised, these are alloyed. With simultaneous deposition of components, the layer produced is tempered during deposition. Alternatively tempering takes place later. The vaporization boat is heated to a temperature markedly above the highest individual boiling point of any component forming the semiconductor layer. All components of the wire are vaporized simultaneously. Deposition is effected using two or more wires; each includes one or two components of the layer. The rate of vaporization is controlled by the feed velocity of the wire. Control is provided by a closed-loop control circuit. AN INDEPENDENT CLAIM IS INCLUDED FOR the corresponding method of depositing the semiconductor layer.    DESCRIPTION OF DRAWING(S) - The drawing shows rectangular vaporization boats, forming part of a bank of vaporizers.    vaporization boats (9, 9', 10, 10')    fastening sections (16, 16', 17, 17')    running direction (X)    transverse direction (Y)