NOVELTY - Multilayer body arrangement (1) comprises (i) a multilayer body (2) with a glass substrate (30), a functional coating (10), which is applied to one side of the glass substrate, an auxiliary layer (20), which is connected over its surface to the side of the glass substrate facing away from the functional coating, and (ii) two radiator fields with an intermediate lying process plane. The multilayer body is arranged in the process plane. The multilayer body exhibits radiant power in the wavelength of 250-4000 nm for the heat treatment of the functional coating.    USE - The multilayer body arrangement is useful for preventing the bending of the glass substrate during transfer of at least one precursor layer into a semiconductor absorber layer of a thin film solar cell by heat treatment, preferably by rapid thermal processing (claimed).    DETAILED DESCRIPTION - Multilayer body arrangement (1) comprises (i) a multilayer body (2) with a glass substrate (30), a functional coating (10), which is applied to one side of the glass substrate, an auxiliary layer (20), which is connected over its surface to the side of the glass substrate facing away from the functional coating, and (ii) two radiator fields with an intermediate lying process plane. The multilayer body is arranged in the process plane. The multilayer body exhibits radiant power, which is incident on the glass substrate, in the wavelength of 250-4000 nm for the heat treatment of the functional coating. An INDEPENDENT CLAIM is also included for the heat treatment with the multilayer body arrangement comprising (a) applying the functional coating on a side of the glass substrate, and connecting the side of the glass substrate, which is facing against the functional coating, with the auxiliary layer, (b) arranging the glass substrate in the process plane, which is lying between two radiator fields, heating to a temperature of 470-600 degrees C, and absorbing radiation power of 10-60% incident radiation power through the auxiliary layer, and (c) cooling the glass substrate to a temperature of less than 470 degrees C.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic cross-sectional view of the multilayer body arrangement.    Multilayer body arrangement (1)    Multilayer body (2)    Functional coating (10)    Auxiliary layer (20)    Glass substrate (30)