Abstract: The present invention relates to a cleaner composition. Specifically, the present invention relates to a cleaner composition that can be used to remove metal oxides and metal abrasive particles arising during metal polishing, such as chemical mechanical planarization (CMP). The cleaner composition has an improved ability to complex with metal abrasive particles. In addition, the cleaner composition maintains its ability to reduce metal abrasive particles, achieving improved stability. Therefore, the cleaner composition can be used for cleaning the surface of a metal with an increased ability to prevent corrosion of the metal surface.

Abstract: A process of making a polymeric phenazonium compound having the general formula: wherein R1, R2, R4, R5, R6, R8 and R9 are the same or different, and represent hydrogen, a low alkyl or a substituted aryl, R3 starts as NH2 and is diazotized followed by polymerization, R5 and R8 may alternatively represent monomeric or polymeric phenazonium radicals, R7 is a carbon in the aromatic ring, and wherein RX—N—RY represents a substituted amine, and RX and RY represent any combination of CH3, C2H5, and hydrogen, except that RX and RY cannot both be hydrogen, A is an acid radical, and n is an integer from 2 to 100. The polymeric phenazonium compound is usable in as an additive in a metal plating bath.

Abstract: A process of making a polymeric phenazonium compound having the general formula: wherein R1, R2, R4, R5, R6, R8 and R9 are the same or different, and represent hydrogen, a low alkyl or a substituted aryl, R3 starts with NH2 and is diazotized followed by polymerization, R5 and R8 may alternatively represent monomeric or polymeric phenazonium radicals, R7 with its substituent group is a substituted amine, with RX and RY representing any combination of CH3, C2H5, and hydrogen, except that RX and RY cannot both be hydrogen, A is an acid radical, and n is an integer from 2 to 100, preferably from 2 to 20 is described. The polymeric phenazonium compound is usable in as an additive in a metal plating bath.

Abstract: A zinc electroplating bath includes zinc ions and a brightening agent. The brightening agent is a polyamine or a mixture of polyamines that include a quaternary ammonium group.

Abstract: Additives for electrolyte baths for the electrodeposition of zinc or zinc alloy layer are described. The additives are polymers with terminal amino groups. These polymers are obtainable by reaction of at least one diamino compound (having two tertiary amino groups) with at least one di(pseudo)halogen compound, wherein the diamino compound is used in stoichiometric excess. The additives effect, in particular, a very little formation of bubbles and only few burnings as well as a uniform distribution of layer thickness in the electrodeposition of zinc or zinc alloy layers.

Abstract: Techniques for electrodepositing zinc (Zn)-containing films are provided. In one aspect, a method of preparing a Zn electroplating solution is provided. The method includes the following steps. The solution is formed from a mixture of at least one zinc salt, a sulfonic acid and a solvent. The sulfonic acid is quenched with a base. A pH of the solution is adjusted to be either less than about 3.5 or greater than about 8.0. The pH of the solution can be adjusted by adding additional sulfonic acid to the solution to adjust the pH of the solution to be less than about 3.5 or by adding a second base to the solution to adjust the pH of the solution to be greater than about 8.0. A Zn electroplating solution and an electroplating method are also provided.

Abstract: To provide a zincate zinc plating bath capable of efficiently forming a zinc plating film with high brightness and high qualities even at a low current density. The zincate zinc plating bath is used in electroplating for depositing a metal containing at least zinc and forming a zinc plating film. It contains a primary brightener having a function of reducing the size crystals of the metal to be deposited and a plating accelerator containing a heterocyclic compound having a predetermined structure such as 2,5-dimercapto-1,3,4-thiadiazole.

Abstract: The invention relates to an aqueous, alkaline cyanide-free electrolyte bath for de-positing zinc and zinc alloy coatings on substrate surfaces comprising (a) a source for zinc ions and optionally a source for further metal ions, (b) hydroxide ions, (c) a polymer of general formula I which is soluble in the bath and (d) at least one pyridinium compound of general formula II or III. The electrolyte bath is suitable for the galvanic deposition of bright and even zinc and zinc alloy coatings.

Abstract: An additive for an alkaline zinc or zinc alloy electroplating bath medium, the additive comprising a random co-polymer comprising the reaction product of: (i) one or more di-tertiary amines including an amide or thioamide functional group, and (ii) optionally, one or more saturated second di-tertiary amines and/or one or more second di-tertiary amines including an unsaturated moiety, with (iii) one or more saturated or unsaturated linking agents capable of reacting with said di-tertiary amines (i) and (ii), provided that, where all the linking agents are saturated, an unsaturated di-tertiary amine must he present. Preferably, the polymer has the general formula n(2x+2y+zEp)j-.

Abstract: A polymer additive for alkaline zinc and zinc alloy electrodepositing media and processes comprises the reaction product of one or both of (i) a first di-tertiary amine of the formula:  where R′ represents  and q is 2 to 6, R represents CH3 or C2H5 and each R may be the same or different and m is 2 to 4, and a second di-tertiary amine of the formula:  where B is CgH2g+1 and g=0 or an integer the respective B groups being the same or different, and f=0 o an integer, and R″ represents CH3 or C2H5 and each R″ may be the same or different, with (ii) a di-halo alkane of the formula: A—(CH2)n—A where A represents a halogen atom and n is at least 2. The resulting polymer preferably has the general structure: Where: 0≦x≦1 0≦y≦1 and: either (x or y) or (x and y)=1 z is at least 2 and when y=0, n is at least 3.

Abstract: An additive for an alkaline zinc or zinc alloy electroplating bath medium, the additive comprising a random co-polymer comprising the reaction product of: (vii) one or more di-tertiary amines including an amide or thioamide functional group, and (viii) optionally, one or more saturated second di-tertiary amines and/or one or more second di-tertiary amines including an unsaturated moiety, with (ix) one or more saturated or unsaturated linking agents capable of reacting with said di-tertiary amines (i) and (ii), provided that, where all the linking agents are saturated, an unsaturated di-tertiary amine must be present. Preferably, the polymer has the general formula n(2x+2y+zEp)j-.

Abstract: A process for the galvanic precipitation of zinc deposits and/or zinc alloy deposits on a metallic surface, working with an aqueous acid electrolyte which contains at least one zinc salt as well as at least one high-gloss agent. At least one heterocyclic aromatic compound is added to the electrolyte, with at least one alkylated nitrogen atom as the heteroatom.

Abstract: A zinc or zinc alloy electroplated metal sheet comprises a metal sheet having, on at least one surface thereof, a composite zinc or zinc alloy plated coating formed by electroplating with zinc or a zinc alloy in a plating solution which contains at least one organic compound selected from the group consisting of alkynes, alkynols, amines and salts thereof, thio compounds, heterocyclic compounds, and aromatic carboxylic acids and salts thereof. The composite plated coating has a coating weight of 0.5-200 g/m.sup.2 and contains 0.001-10 wt % of co-deposited carbon. The electroplated metal sheet has improved post-painting corrosion resistance, press formability, and spot weldability.

Abstract: In a method for manufacturing a one-sided electroplated steel sheet by electroplating of a steel sheet in an acidic bath, an adsorption film-forming organic inhibitor is added to either (a) the electroplating solution or (b) a pickling solution used prior to electroplating and/or rinse water used for rinsing the pickled sheet in a concentration of at least 1 ppm, or it is added to (c) both the plating solution and the pickling solution and/or rinse water in a concentration of at least 0.1 ppm. The steel sheet is then passed through the inhibitor-containing solution, thereby providing a one-sided electroplated steel sheet having improved appearance and adaptability to phosphating on the unplated side.

Abstract: A method for enhancing the solderability of a metallic surface is disclosed where the metallic surface is plated with an immersion silver plate prior to soldering, which immersion silver plate is treated with an additive selected from the group consisting of fatty amines, fatty amides, quaternary salts, amphateric salts, resinous amines, resinous amides, fatty acids, resinous acids, ethoxylated derivatives of any of the foregoing, and mixtures of any of the foregoing. The immersion silver deposits created are resistant to electromigration.

Abstract: A method for enhancing the solderability of a metallic surface is disclosed where the metallic surface is plated with an immersion silver plate prior to soldering, which immersion silver plate is treated with an additive selected from the group consisting of fatty amines, fatty amides, quaternary salts, amphateric salts, resinous amines, resinous amides, fatty acids, resinous acids, ethoxylated derivatives of any of the foregoing, and mixtures of any of the foregoing. The immersion silver deposits created are resistant electromigration.