Patent ID: 7380698

Claim:
Method for joining microstructured component layers for manufacturing microstructure components, wherein each said respective component layer comprises a base layer bearing micro-passageways/channels of a material selected from the group consisting of metals and metal alloys, comprising the steps of: applying a multifunctional barrier coating layer to each joining surface of each said base layer, applying at least one solder/brazing coating onto each said multifunctional barrier coating, stacking said coated base layers with the coated joining surfaces juxtaposed wherein said coatings therebetween are symmetrically oriented, and solder/brazing said stacked component layers using heat and pressure to produce a said microstructure component, wherein each said solder/brazing coating forms intermetallic phases of partial solder/brazing coatings when heated, and whereby each said multifunctional barrier coating prevents oxidation of said respective base layer and prevents diffusion between the solder/brazing coating and each said base layer.