摘要:
The present invention relates to an electrolyte and a process for depositing a matt metal layer on a substrate from an electrolyte comprising an emulsion and/or dispersion former or a wetting agent. According to the invention, many metals having differing degrees of mattness can be produced by emulsion and/or dispersion formation in the electrolyte by means of addition of polyalkylene oxides or derivatives thereof, wetting agents having fluorinated or perfluorinated hydrophobic chains or quaternary ammonium compounds substituted by polyalkylene oxide. Furthermore, polytetrafluoroethylene particles can be added to the electrolyte in order to alter the surface properties of the matt layers deposited.
摘要:
The invention relates to a method for coating substrate surfaces with a metal or oxide layer in a coating bath. Said bath has at least one component the concentration of which changes during the coating process and which therefore has to be replenished or removed in order to maintain the quality of the bath. The method according to the invention is characterized in that the component is replenished and/or removed depending on the strength of the composition of the bath.
摘要:
A method for electrolessly filling a stacked memory cell interconnect feature comprising electroless deposition from a composition comprising Co ions and a reducing agent by bottom-up filling initiated by reduction to Co metal on an electrically conducting bottom of the feature. An electroless deposition composition for electrolessly depositing Co in a high aspect ratio stacked memory cell interconnect feature, the composition comprising water, Co ions, a complexing agent, a buffering agent, a borane-based reducing agent component, and a hypophosphite reducing agent component. There is a concentration ratio of borane-based reducing agent to hypophosphite reducing agent of less than about 0.5.
摘要:
The invention describes a process for non-galvanic tin plating of copper and copper alloys by precipitation of tin from methanesulphonic acid and tin-containing electrolytes, containing a complexing agent. In describing a process by which a durable tin layer which can be soldered is created, which, at the same time, prevents liberation of the base material, this invention discloses that the electrolytes have at least one foreign metal added to form a diffusion barrier in the tin layer.
摘要:
An alkaline composition for enhancing the adhesiveness of metal plating to a plastic substrate comprising: (a) a compound represented by general formula (I), and (b) a compound represented by general formula (II), wherein R1, R2, R3, and R4 are independently selected from the group consisting of hydrogen atoms, aryl groups and alkyl groups of 1-4 carbon atoms, m is 0 to 2 and n is 2 to 5; the compositions comprising, by weight, about 10 gram/liter (g/l) to saturation compound (a) and about 10g/l to saturation compound (b). The composition is preferably employed before alkaline permanganete etching of the plastic, followed by electroless metal plating using conventional techniques.
摘要:
Procédé pour améliorer le nickelage non galvanique d'aluminium qui a été prétraité avec un revêtement barrière comme du zinc, en utilisant de multiples bains de placage sous conditions de fonctionnement regulées.
摘要:
The invention relates to a process for the adjustment of the lightness L* of electrolytically deposited chromium-finishes on workpieces obtained by an electroplating bath at least comprising chromium(III)-ions and sulfur containing organic compounds, wherein the concentration of the sulfur containing organic compounds in the bath is adjusted by passing at least a part of the bath composition through an activated carbon filter.