| HERAEUS MATERIALS TECHNOLOGY GMBH & CO. KG Patent applications |
| Patent application number | Title | Published |
|---|
| 20120119392 | LEAD-FREE HIGH TEMPERATURE COMPOUND - A simple method is provided for firmly-bonded connection of an electronic component to a substrate, which dispenses with the use of lead-containing paste solders and leads to a contact layer featuring sufficiently high resistance to heat fatigue in an environment characterized by incessant periodical temperature variations, and featuring high thermal and electrical conductivity. The method for firmly-bonded connection of an electronic component to a substrate includes the steps of: (a) providing an electronic component having a first surface to be connected and a substrate having a second surface to be connected; (b) applying a paste solder to at least one of the surfaces to be connected; (c) arranging the electronic component and the substrate such that the first electronic component surface to be connected and the second substrate surface to be connected contact each other through the paste solder; and (d) soldering the arrangement from (c) in order to generate a firmly-bonded connection between the electronic component and the substrate, wherein the paste solder contains (i) 10-30% by weight copper particles, (ii) 60-80% by weight particles of at least one substance selected from the group consisting of tin and tin-copper alloys, and (iii) 3-30% by weight solder flux, wherein the mean particle diameter of the particles (i) and of the particles (ii) is no more than 15 μm, and wherein the thickness of the applied layer of paste solder is at least 20 μm. | 05-17-2012 |
| 20120085641 | Sputtering Target Having Amorphous and Microcrystalline Portions and Method of Producing Same - A sputtering target is provided which ensures the production of unvaryingly homogenous layers of the sputtering material during the lifespan of the sputtering target. The sputtering target includes a mixture of oxides of indium, zinc, and gallium, the mixture containing at least one ternary mixed oxide of indium, zinc, and gallium and at least one amorphous phase. The portion of ternary mixed oxides of indium, zinc, and gallium is at least 50 weight percent, relative to the total weight of the mixture, and the portion of amorphous phase is at least 20 weight percent, relative to the total weight of the mixture. | 04-12-2012 |
| 20120055978 | Contacting Means and Method for Contacting Electrical Components - A method is provided for connecting at least two components, in which a sintering preform is used. This preform includes a carrier having a surface that has at least one structuring element containing hardened paste, wherein the hardened paste contains: (a) metal particles having a coating that contains at least one organic compound; and (b) at least one sintering aid selected from the group consisting of (b1) organic peroxides, (b2) inorganic peroxides, (b3) inorganic acids, (b4) salts of organic acids, wherein the organic acids have 1-4 carbon atoms, (b5) esters of organic acids, wherein the organic acids have 1-4 carbon atoms, and (b6) carbonyl complexes. The surface of the carrier having the hardened paste is not reactive to the constituents of the paste. | 03-08-2012 |
| 20120055707 | Use of Aliphatic Hydrocarbons and Paraffins as Solvents for Silver Sinter Pastes - A process is provided for fastening an electronic component to a substrate, the process including the steps of: (i) providing an electronic component and a substrate; (ii) creating a sandwich arrangement having the electronic component, the substrate and a layer arranged in between them, wherein the layer includes a paste containing (a) metal particles having a coating including at least one coating compound selected from the group consisting of fatty acids, fatty acid salts and fatty acid esters, and (b) at least one aliphatic hydrocarbon compound; and (iii) sintering the sandwich arrangement. | 03-08-2012 |
| 20120000582 | TREATMENT OF BORON-CONTAINING, PLATINUM GROUP METAL-BASED ALLOYS - Castings made of boron-containing alloys based on at least one platinum group metal are treated by thermal ageing in the presence of oxygen and at temperatures below the melting point of the alloy. This enables the alloys to be processed at temperatures customary in the jewelry industry. The treated castings can also be processed into medical technology products. | 01-05-2012 |
