Abstract:
A method of etching silicon, the method comprising the steps of: electrolessly depositing a first metal onto a silicon surface to be etched, wherein the electrolessly deposited first metal partially covers the surface of the silicon to be etched; depositing a second metal that is different from the first metal over the silicon surface and the electrolessly deposited first metal, wherein a film of the deposited second metal covers the silicon surface to be etched; removing the first metal and the second metal from regions of the film of the deposited second metal that overlie the first metal to leave the second metal partially covering the silicon surface to be etched; and etching the silicon by exposing the silicon surface to an aqueous etching composition comprising an oxidant and a source of fluoride ions.
Abstract:
A method of etching silicon, the method comprising the steps of: electrolessly depositing a first metal onto a silicon surface to be etched, wherein the electrolessly deposited first metal partially covers the surface of the silicon to be etched; depositing a second metal that is different from the first metal over the silicon surface and the electrolessly deposited first metal, wherein a film of the deposited second metal covers the silicon surface to be etched; removing the first metal and the second metal from regions of the film of the deposited second metal that overlie the first metal to leave the second metal partially covering the silicon surface to be etched; and etching the silicon by exposing the silicon surface to an aqueous etching composition comprising an oxidant and a source of fluoride ions.
Abstract:
Damit die Schraubenverbindungen nach langfristigem Einsatz in der Zerspanung unter extremen Einsatzbedingungen mit Schmutz, extremer Wärme, Feuchtigkeit, Oxidation und Wechsellasten problemlos und ohne überproportionalen Kraftaufwand wieder gelöst werden können, wird vorgeschlagen, dass die Schrauben (2) zumindest im Bereich ihres Gewindes (3) durch Beschichtung eine glatte Oberfläche aufweisen, in der Beschichtung PTFE Partikel, bevorzugt mit einer Partikelgröße zwischen 100 nm und 300 nm, enthalten sind und die Schraubenverbindung (1) bzw. die beiden Gewindepartner (Schrauben und Gewindebohrungen) mit geringen Mengen eines hitzebeständigen Fettes mit Keramikpulverpartikeln geschmiert sind.
Abstract translation:提供一种具有化学镀膜的基材,其具有优异的母材的耐腐蚀性,并且可以通过焊接来提高接合性,并且从制造成本的观点来看,优于常规的电镀膜。 一种电镀基材,其具有形成在其上的基材和多层膜,其特征在于,所述多层膜包括作为下层的无电镀镍膜,不具有厚度的取代型无电镀钯膜 小于0.2nm,小于10nm,重量不小于0.2432μg/ cm 2,小于12.160μg/ cm 2作为中间膜,以及 化学镀金膜为上层。
Abstract:
Methods and systems for depositing metal patterns on a substrate are provided. Accordingly, an electroless active layer can be formed on a substrate. Ink-jet techniques can then be used to independently ink-jet at least two components of an electroless deposition composition onto a variety of substrates. A metal composition can be ink-jetted onto the electroless active layer. The metal composition can contain a metal salt and optional additives. A reducing agent composition can be ink-jetted either subsequent to or prior to ink-jetting of the metal composition to form an electroless composition on the substrate. The metal salt and reducing agent react to form a metal pattern which can be used in formation of electronic devices or other products. The described ink-jettable compositions are stable over a wide range of conditions and allow for wide latitude in ink-jet formulations and choice of substrates.
Abstract:
A method of electroplating a nonconductive plastic molded product is provided, which comprises the steps of applying an electroless plating catalyst to a nonconductive plastic molded product by using a colloidal solution containing a noble metal compound and a stannous compound, forming on the resultant product a conductive film by using an electroless plating liquid containing a copper compound, reducible saccharides, a complexing agent and a metal hydroxide, and then electroplating the resultant product. By this simple method, an electroplating film having excellent appearance and physical properties is formed on a nonconductive plastic molded product.
Abstract:
A method for applying a metal on a substrate comprises: a) applying a coating by treatment in a plasma, comprising a compound selected from alkanes up to 1 0 carbon atoms, and unsaturated monomers, and b l ) producing polymers on the surface of said substrate, said polymers comprising carboxylic groups and adsorbed ions of a second metal, reducing said ions to the second metal, or alternatively b2) producing polymers on the surface, bringing the surface of said substrate in contact with a dispersion of colloidal metal particles of at least one second metal, and c) depositing said first metal on said second metal. Advantages include that materials sensitive to for instance low pH or solvents can be coated. Substrates including glass, Si0 2 with very few of no abstractable hydrogen atoms as well as polymer materials containing halogen atoms can be coated with good adhesion.
Abstract:
Die vorliegende Erfindung betrifft ein Schichtsystem zur Beschichtung einer Substratoberfläche sowie ein Verfahren zur Beschichtung einer Substratoberfläche mit einem entsprechenden Schichtsystem, wobei das Schichtsystem aus wenigstens zwei Schichten besteht, wobei eine Schicht eine Metall-Nickel-Legierungsschicht mit einem Metall der Gruppe bestehend aus Zinn, Kupfer, Eisen, Wolfram und Kobalt oder einer Legierung wenigstens eines dieser Metalle und die andere Schicht eine Schicht eines Metalls der Gruppe bestehend aus Nickel, Kupfer, Zinn, Molybdän, Niob, Kobalt, Chrom, Vanadium, Mangan, Titan und Magnesium, oder einer Legierung wenigstens eines dieser Metalle ist. Das erfindungsgemäße Schichtsystem zeichnet sich durch eine hohe mechanische Stabilität und große Korrosionsbeständigkeit aus.