Abstract: A method for joining microstructured component layers and a method for manufacturing microstructure component layers and the microstructure component layer is provided. At least one multifunctional barrier coating is applied to the joining surfaces of a base material layer for the microstructured component layers. The layers are made of aluminum/aluminum alloys and/or copper/copper alloys, and/or noble steels. At least one solder/brazing coating is applied to each barrier coating. The coated base material layers comprising the component layers are stacked. The stacked component layers are joined by solder/brazing using heat. The melting temperature of the solder/brazing coating is higher after the heat joining than before same.

Abstract: The invention relates to a microstructure cooler 3 for an article 4 to be cooled, whereby the cooler 3 includes a stack of at least two metal films 1 and one base plate 5 that can be brought via a thermal contact surface 6 into thermal contact with the article 4, the metal films 1 and the base plate 5 are joined to one another in a material fit, present in the metal films 1 are channels 2 for cooling medium, and the channels 2 have a width in the range of 100 to 2,000 ?m, a depth in the range of 25 to 1,000 ?m, and a mean interval in the range of 50 to 1,000, residual film thicknesses resulting from the channels 2 in the metal films 1 are in the range of 50 to 300 ?m, and the base plate 5 has a thickness in the range of 200 to 2,000 ?m.

Abstract: Micro-components having at least one individual layer are produced according to the method, which have functional layers 3 on the walls of inner structures, for example of flow channels. The micro-components are intended to be suitable for a large number of different applications in chemical reaction technology, for heat exchanging, for mixing substances or for evaporating liquids. In particular, the micro-components are intended to have no problems in respect of leaks in the flow channels. The method has the following method steps: A. producing the at least one individual layer by: a. producing a first metal layer or a metal foil 1; b. forming the inner structures in and/or on the first metal layer or metal foil 1 by suitable etching methods and/or metal deposition methods; and c. forming the functional layers 3 solely on the walls of the inner structures and thereafter B.

Abstract: Known manufacturing methods for microstructure components, in particular for microreactors, micro-heat exchangers, and micromixers, are not reliable enough to ensure that the component's pressure and corrosion resistance is high enough, that the component's tightness against fluid exiting from the component or fluid spilling over into adjacent microchannels is high enough, and that the microchannels have a sufficiently low flow resistance. In addition, known manufacturing methods are not cost-effective enough that the microstructured components can be employed in a wide variety of applications.

Abstract: The invention relates to a microstructure cooler 3 for an article 4 to be cooled, whereby the cooler 3 includes a stack of at least two metal films 1 and one base plate 5 that can be brought via a thermal contact surface 6 into thermal contact with the article 4, the metal films 1 and the base plate 5 are joined to one another in a material fit, present in the metal films 1 are channels 2 for cooling medium, and the channels 2 have a width in the range of 100 to 2,000 &mgr;m, a depth in the range of 25 to 1,000 &mgr;m, and a mean interval in the range of 50 to 1,000, residual film thicknesses resulting from the channels 2 in the metal films 1 are in the range of 50 to 300 &mgr;m, and the base plate 5 has a thickness in the range of 200 to 2,000 &mgr;m.