Abstract:
A method for producing patterns in a polymer layer. Polymer sites are formed on a support. These sites are subjected to a plasma deposition of dielectric material and preferably react with this plasma so as to form openings at the level of said sites. A pattern structure is then formed in the dielectric material and/or in the polymer.
Abstract:
A molecule is separated from a liquid sample containing said molecule and at least one additional molecule having a larger hydrodynamic diameter than the hydrodynamic diameter of the molecule to be separated, by means of a separation device comprising a substrate, at least one circulation channel arranged in said substrate, and at least one nanotube associated with said molecule to be separated and formed on a free surface of the substrate. Separation is achieved by means of the internal channel of a nanotube, such as a carbon nanotube, presenting an effective diameter chosen in predetermined and controlled manner. The effective diameter of the internal channel is chosen such as to be larger than the hydrodynamic diameter of the molecule to be separated and smaller than the hydrodynamic diameter of the additional molecules of larger hydrodynamic diameters.
Abstract:
A method for manufacturing a structure of electrical interconnections for an integrated circuit having levels of interconnections, the method having steps of depositing a layer of sacrificial material on the substrate, etching the layer of sacrificial material with a pattern corresponding to electrical conductors, depositing, on the etched layer of the layer of sacrificial material, a layer of permeable membrane allowing an attack agent to break down the sacrificial material, breaking down the sacrificial material by using the attack agent to form air gaps to replace the broken down sacrificial material, forming electrical conductors in the etched track so as to obtain electrical interconnections separated by air gaps, and depositing a layer of insulating material to cover the electrical interconnections.