ADHESIVE-FREE BONDING OF DIELECTRIC MATERIALS, USING NANOJET MICROSTRUCTURES

摘要

A method of bonding layers of dielectric materials includesproviding a surface one of the layers with microscale- and/or nanoscale-size bonding elements forming contact points of the layers andbringing a layer of the layers into a mutual position according to an intended use.The method also includes illuminating the layer whose surface is provided with bonding elements by an incident electromagnetic wave, the propagation direction of which is substantially orthogonal to the one of the layers, and whose wavelength is selected depending on an absorption spectrum of a material forming the one of the layers andgenerating condensed optical beams within said bonding elements or close to a tip of said bonding elements intended to be in contact with the other layer.The method further includes heating and melting the bonding elements by high-intensity focal spots formed by said generated optical beamsand maintaining the layers into a mutual position until and bonding of the layers.