摘要:
A plating bath additive and a plating bath using the said additive are provided, which plating bath contains a hydroxyalkanesulfonic acid and which even when applied to an electronic part such as a semiconductor device does not give rise to a problem such as circuit-to-circuit insulation becoming defective. The plating bath additive contains a hydroxyalkanesulfonic acid as a main component and has an alkali metal content of less than 0.05 mass% relative to the hydroxyalkanesulfonic acid. The plating bath incorporates the said additive therein.
摘要:
A tin-plated product formed by electroplating a substrate in a tin plating solution, which contains carbon particles and an aromatic carbonyl compound, to form a coating of a composite material, which contains the carbon particles in a tin layer, on the substrate has a coefficient of friction which is not greater than 0.18, preferably not greater than 0.13, with respect to the same kind of another tin-plated product, and has a glossiness of not less than 0.29 and a contact resistance of not greater than 1.0 mΩ. The coating has a thickness of 0.5 to 10 micrometers, and the content of carbon in the coating is in the range of from 0.1 % by weight to 1.5 % by weight. Separate protrusions containing the carbon particles are formed on the surface of the coating. The orientation plane of a tin matrix of the coating is (101) plane.
摘要:
Disclosed are electrolyte compositions for depositing tin or tin-alloys at various current densities. Also disclosed are methods of plating such tin or tin-alloys on substrates, such as the high speed tin plating of steel.
摘要:
Die Erfindung betrifft ein neues Verfahren zum elektrolytischen Abscheiden von Zinn- oder Zinnlegierungsschichten, bei denen ein wäßriges Abscheidebad verwendet wird, enthaltend Flavone und/oder Isoflavone. Mit diesem Verfahren ist es möglich, gleichmäßig dicke, kompakte, helle und porendichte Zinn- beziehungsweise Zinnlegierungsschichten abzuscheiden, wobei die Abscheidung auch durch organische Verunreinigungen in der Lösung nicht wesentlich beeinträchtigt wird.
摘要:
Glänzende binäre Kupfer-Zinn-Legierungen lassen sich auf galvanischem Wege aus einem wässerigen Bad abscheiden, das Kupfercyanid, Zinn(IV)-Verbindung, Kaliumcyanid, Kaliumhydroxid und das Kaliumsalz der durch Oxidation von Glucose erhaltenen Hydroxysäuren enthält. Die Legierungen eignen sich für technische und dekorative Zwecke, besonders als Ersatz für Nickel.
摘要:
An electrolyte, system and process for depositing tin, lead or tin/lead alloys upon a substrate by high speed electroplating, which includes a basis solution of an alkyl or alkylol sulfonic acid; and at least one of a solution soluble tin compound or a solution soluble lead compound; and an alkylene oxide condensation compound of an organic compound having no more than twenty carbon atoms in one or two independent or joined rings optionally substituted with an alkyl moiety of eight carbon atoms or less.