摘要:
The present invention relates to a corrosion-protective composition containing a wax, an unsubstituted or substituted polyaniline in a doped form and a liquid paraffin, and articles comprising the composition applied on a substrate. It also relates to a process for manufacturing the composition, wherein i) a first dispersion of a polyaniline in a doped form is prepared; and ii) the first dispersion of the polyaniline is combined with a wax component to sufficiently disperse the polyaniline therein, and to the use of the composition as a single layer coating for the protection against corrosion of a substrate in need thereof.
摘要:
Die vorliegende Erfindung betrifft ein Verfahren zur Verhinderung des Anlaufens von Silber- oder Silberlegierungsschichten. Erfindungsgemäß werden Silber- oder Silberlegierungsschichten mit einer dünnen Schicht eines Metalls der Gruppe bestehend aus Palladium, Platin, Osmium und Rhenium beschichtet, wobei eine solche Beschichtung autokatalytisch oder galvanisch erfolgen kann. In einer Ausgestaltung der Erfindung wird auf die so abgeschiedene Metallschicht noch zusätzlich eine Schicht aus selbstorganisierenden Molekülen wie beispielsweise Hexadecanthiol, Oktadecanthiol und/oder einer Alkansulphonsäure oder deren Derivate aufgebracht. Die so behandelten Silber- oder Silberlegierungsschichten zeigen einen deutlich verbesserten Anlaufschutz und eine erhöhte Korrosionsbeständigkeit.
摘要:
The present invention relates to an electrolyte composition for the deposition of a tin-zinc alloy on a substrate surface. Furthermore, the invention relates to a method for the deposition of a tin-zinc alloy layer on the substrate surface. The inventive electrolyte composition for the deposition of a tin-zinc alloy on a substrate surface comprises tin in oxidation state +4(Sn 4+ ) and has a pH-value in the range from about pH 9 to about pH 11. Furthermore, the inventive electrolyte composition can comprise a complexing agent of the group consisting of carboxylates, amino derivates, phosphates and hydroxides as well as brightening agents or surface wetting agents.
摘要:
The present invention relates to an improved method for the metallization of an electrically non-conductive substrate using a thiosulphate conductor. According to the invention, thiosulphate conductors are used in combination with compounds of the ions of the group consisting of lithium, potassium, rubidium, caesium or mixtures thereof.
摘要:
An electrolytic plating method and composition for electrolytically plating Cu onto a semiconductor integrated circuit substrate having submicron-sized interconnect features. The composition comprises a source of Cu ions and a suppressor compound comprising polyether groups. The method involves rapid bottom-up deposition at a superfill speed by which Cu deposition in a vertical direction from the bottoms of the features to the top openings of the features is greater than Cu deposition on the side walls.
摘要:
The present invention relates to an improved method for the metallization of an electrically non-conductive substrate using a thiosulphate conductor. According to the invention, thiosulphate conductors are used in combination with compounds of the ions of the group consisting of lithium, potassium, rubidium, caesium or mixtures thereof.
摘要:
A method for enhancing corrosion resistance of a tin-based surface on a workpiece involving contacting the tin-based surface with a composition comprising a phosphonic acid compound and water to form a phosphorus-based film over the tin-based coating thereby inhibiting corrosion of the tin-based surface. Phosphonic acid containing compositions having a concentration up to about 30 vol. % of an organic solvent, and water.
摘要:
A method for reducing whisker formation and preserving solderability in tin coatings over metal features of electronic components. The tin coating has internal tensile stress and is between about 0.5 m and about 4.0 m in thickness. There is a nickel-based layer under the tin coating.
摘要:
A method and composition for electroplating Cu onto a substrate in the manufacture of a microelectronic device involving and electrolytic solution containing a source of Cu ions and a substituted pyridyl polymer compound for leveling.
摘要:
Le procédé ci-décrit est destiné à la régénération de solutions aqueuses à base de bifluorure d'ammonium et d'eau oxygénée utilisées pour l'extraction de soudure dans la fabrication de cartes de circuits imprimés. Le procédé régénère la solution usée d'extraction de soudure, laquelle contient des ions d'étain contaminants, en ajoutant des ions potassium à la solution pour précipiter un composé filtrable formé d'étain et de potassium.