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2 results about "Atomic diffusion" patented technology
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Vacancy diffusion is a diffusion process whereby the random thermally-activated movement of atoms in a solid results in the net transport of atoms. For example, helium atoms inside a balloon can diffuse through the wall of the balloon and escape, resulting in the balloon slowly deflating. Other air molecules (e.g. oxygen, nitrogen) have lower mobilities and thus diffuse more slowly through the balloon wall. There is a concentration gradient in the balloon wall, because the balloon was initially filled with helium, and thus there is plenty of helium on the inside, but there is relatively little helium on the outside (helium is not a major component of air). The rate of transport is governed by the diffusivity and the concentration gradient.
METHOD FOR PRODUCING A STRUCTURE WITH A BARRIER LAYER TO PREVENT THE DIFFUSION OF ATOMIC SPECIES
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES +1
A method for manufacturing parts using atomic diffusion bonding.
To provide a method for manufacturing a component by joining two plates and constructing a metal layer embedded between the plates.SOLUTION: Two plates are electrically insulated. At least one of the plates is optically transparent and forms at least one flat conductor unit and at least one isolator unit between the plates. With a method, a metal layer is disposed between the plates. The metal layer is locally heated using laser irradiation to process the metal layer so that the metal layer is converted into at least one isolator unit in part of a region. A least one conductor unit is formed adjacent to at least one isolator unit to convert the metal layer into the isolator unit beyond a line or an area. The plate is ground on a bonding surface side. A bonding surface is formed by a metal bonding layer. Bonding of the plate includes an atomic diffusion bonding. The metal bonding layer forms the metal layer between the bonded plates.SELECTED DRAWING: Figure 1
Owner:ASML NETHERLANDS BV