L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des

Stephane Rabia

Thierry Sindzingre

Nicolas Potier

Christian Larquet

Daniel Guerin

Francedillaois Coeuret

Denis Verbockhaven

Gilles Conor

Denis Verbokhaven

Method and apparatus for dry surface treatment of an object

The invention relates to a method for drying fluxing of a metallic surface before soldering or tinning using an alloy, according to which the surface to be fluxed is treated, at a pressure close to atmospheric pressure, with a gaseous treatment atmosphere comprising excited or unstable species and being substantially free of electrically charged species, which is obtained from a primary gas mixture and, optionally, an adjacent gas mixture, the primary gas mixture being obtained at the gas outlet of at least one apparatus for forming excited or unstable gas species, in which an initial gas mixture comprising an inert gas and/or a reducing gas and/or an oxidizing gas has been converted, the adjacent gas mixture not having passed through the apparatus.

Method and device for dry fluxing of metallic surfaces before soldering

The invention relates to a method for dry cleaning or dry fluxing metallic surfaces before, during, or after a reflow soldering operation. The metallic surfaces that are dry cleaned or dry fluxed include (1) the metallic substrate on which an at least partially metallic, electronic component is to be mounted, (2) the solder paste, and (3) the metallic portions of the electronic component. The method comprises treating the metallic surface with a gaseous treatment atmosphere comprising unstable or excited gaseous species, and is substantially free of electrically charged species.

Method and apparatus for reflow soldering metallic surfaces

The invention relates to a process for the dry surface treatment of at least one metal surface portion, according to which the portion is treated at a pressure close to atmospheric pressure by a gaseous treatment atmosphere comprising excited or unstable species and substantially devoid of electrically charged species, obtained from a primary gaseous mixture and if necessary an adjacent gaseous mixture, the primary gaseous mixture being obtained at the gas outlet of at least one device for the production of excited or unstable gaseous species, in which an initial gaseous mixture comprising an inert gas and/or a reducing gas and/or an oxidizing gas has been converted, the adjacent mixture not having passed through the device.

Process and apparatus for the dry treatment of metal surfaces

A method for dry fluxing at least one metallic surface of an article comprising the steps of:

Method for dry fluxing of metallic surfaces, before soldering or

Gas excitation device

Method and device for forming an excited gaseous atmosphere lacking

Method and device for forming an excited gaseous treatment atmosphere

A method for wave soldering a circuit having two or more faces comprising the steps of:

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Gif sur Yvette, France

Stephane Rabia