Abstract:
Galvanic nickel or nickel alloy electroplating bath for depositing a semi-bright nickel or semi-bright nickel alloy coating in which the electroplating bath includes at least one compound having the general formula (1) and/or a salt thereof wherein R1═C1-C18 hydrocarbon moiety comprising a SO3− group, a carboxylic group, or an aromatic and/or a heteroaromatic group; R2═NR3R4 moiety, or OR5 moiety, or cyclic NR6 moiety, wherein R3, R4, R5=hydrogen, or C1-C18 aliphatic hydrocarbon moiety, or C1-C18 hydrocarbon moiety comprising an aromatic and/or a heteroaromatic group, wherein R3, R4 and R5 are identical or different; R6═C3-C8 hydrocarbon moiety, or C3-C8 hydrocarbon moiety wherein at least one carbon atom is substituted by a heteroatom; n=1-3; and wherein the electroplating bath further comprises at least one acetylenic compound and chloral hydrate.
Abstract:
Compositions and methods of using such compositions for electroplating cobalt onto semiconductor base structures comprising submicron-sized electrical interconnect features are provided herein. The interconnect features are metallized by contacting the semiconductor base structure with an electrolytic composition comprising a source of cobalt ions, a suppressor, a buffer, and one or more of a depolarizing compound and a uniformity enhancer. Electrical current is supplied to the electrolytic composition to deposit cobalt onto the base structure and fill the submicron-sized features with cobalt. The method presented herein is useful for superfilling interconnect features.
Abstract:
A composition comprising: (a) cobalt ions, and (b) an additive of formula (I) wherein R1 is selected from X-Y; R2 is selected from R1 and R3; X is selected from linear or branched C1 to C10 alkanediyl, linear or branched C2 to C10 alkenediyl, linear or branched C2 to C10 alkynediyl, and (C2H3R6—O)n—H; Y is selected from OR3, NR3R4, N+R3R4R5 and NH—(C═O)—R3; R3, R4, R5 are the same or different and are selected from (i) H, (ii) C5 to C20 aryl, (iii) C1 to C10 alkyl (iv) C6 to C20 arylalkyl, (v) C6 to C20 alkylaryl, which may be substituted by OH, SO3H, COOH or a combination thereof, and (vi) (C2H3R6—O)n—H, and wherein R3 and R4 may together form a ring system, which may be interrupted by O or NR7; m, n are integers independently selected from 1 to 30; R6 is selected from II and C1 to C5 alkyl; R7 is selected from R6 and formula (II).
Abstract:
A composite plated product has a metal material and a plating film of compounded carbon nanomaterials and microparticles coated on the metal material in a nickel plating bath in which carbon nanomaterials are mixed together with microparticles having an average grain size of 2.5 μm or less.
Abstract:
Nickel-plated shaped parts are produced by galvanic precipitation of nickel from aqueous-acid baths which contain as essential constituents one or several nickel salts, one or several inorganic acids and one or several brighteners. As brighteners are used thiourea salts having general formula (I), in which R.sup.1 to R.sup.4 stand for hydrogen, C.sub.1 to C.sub.18 -alkyl, which may be substituted by carboxyl groups, C.sub.1 to C.sub.4 -alkoxycarbonyl groups or cyano groups, C.sub.2 to C.sub.12 -alkenyl, C.sub.2 to C.sub.12 -alkinyl, C.sub.5 to C.sub.8 -cycloalkyl, C.sub.7 to C.sub.12 -phenylalkyl or phenyl, which may be substituted by one or two C.sub.1 to C.sub.4 -alkyl residues, C.sub.1 to C.sub.4 -alkoxy residues, halogen atoms, hydroxyl groups, phenyl groups, phenyl residues or C.sub.1 to C.sub.4 alkoxycarbonyl groups; Y sands for a chemical bond or for linear or branched alkylene, alkenylene or alkinylene having each up to 20 C. atoms; A stands for hydrogen or a group having the formulae: --CO--H, --CO--R.sup.5, --CO--OH, --CO--OR.sup.5, --CO--NR.sup.6 R.sup.7, --CO--CH.sub.2 --CO--OR.sup.5, --O--CO--H, --O--CO--R.sup.5, --NR.sup.6 --CO--R.sup.5, --NR.sup.6 --CO--R.sup.5, --OR.sup.5, --SO.sub.2 --R.sup.5, --SO.sub.2 --OH, --SO.sub.2 --OR.sup.5, --PO(PH).sub.2, --PO(OH)(OR.sup.5), --PO(OR.sup.5).sub.2, OPO(OH).sub.2, --OPO(PH)(PR.sup.5) or --OPO(OR.sup.5).sub.2 in which R.sup.5 stands for C.sub.1 to C.sub.12 -alkyl, C.sub.2 to C.sub.12 -alkenyl, C.sub.2 to C.sub.12 -alkinyl, C.sub.5 to C.sub.8 -cycloalkyl, C.sub.7 to C.sub.12 -phenylalkyl or phenyl, which may be substituted by one or two C.sub.1 to C.sub.4 -alkyl residues, halogen atoms, hydroxyl groups, phenyl residues or C.sub.1 to C.sub.4 -alkoxycarbonyl groups; and R.sup.6 and R.sup.7 stand for hydrogen or C.sub.1 to C.sub.4 -alkyl; n is a number from 1 to 4 and X.sub.(--) stands for s water solubility-promoting, n-valent inorganic or organic anion.
Abstract:
Nickelized shaped articles are produced by electrodeposition of nickel from aqueous acidic baths containing as essential constituents one or more nickel salts, one or more inorganic acids and one or more brighteners by a procedure in which the brighteners used are phosphonium salts I ##STR1## where R.sup.1 to R.sup.3 are each C.sub.1 -C.sub.18 -alkyl, which may be carboxyl-, C.sub.1 -C.sub.4 -alkoxycarbonyl- or cyano-substituted, C.sub.2 -C.sub.12 -alkenyl, C.sub.2 -C.sub.12 -alkynyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.12 -phenylalkyl, phenyl, which may be substituted by one or two substituents selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, hydroxyl, phenyl and C.sub.1 -C.sub.4 -alkoxycarbonyl, or mono- or di(C.sub.1 -C.sub.4 -alkyl)amino,R.sup.4 and R.sup.5 are each hydrogen or C.sub.1 -C.sub.4 -alkyl,A is hydrogen or a group of the formula --CO--H, --CO--R.sup.6, --CO--OH, --CO--OR.sup.6, --CO--CH.sub.2 --CO--OR.sup.6, --O--CO--H, --O--CO--R.sup.6, --OR.sup.6, --SO.sub.2 --R.sup.6, --SO.sub.2 --OH, --SO.sub.2 --OR.sup.6, --PO(OH).sub.2, --PO(OH)(OR.sup.6), --PO(OR.sup.6).sub.2, --OPO(OH).sub.2, --OPO(OH)(OR.sup.6) or --OPO(OR.sup.6).sub.2, whereR.sup.6 is C.sub.1 -C.sub.12 -alkyl, C.sub.2 -C.sub.12 -alkenyl, C.sub.2 -C.sub.12 -alkynyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.12 -phenylalkyl or phenyl, which may be substituted by one or two substituents selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, hydroxyl, phenyl and C.sub.1 -C.sub.4 -alkoxycarbonyl,Y is --CH.dbd.CH-- or --C.dbd.C--,m is from 0 to 10,n is from 1 to 4,p is 0 or 1,q is from 0 to 10, andX.sup..crclbar. is an n-valent inorganic or organic anion that promotes solubility in water.
Abstract:
Semibright (matte-gloss) coatings of nickel or nickel-cobalt are deposited on a metal substrate from a WATT'S-type sulfamiate or fluorobate electroplating bath at a pH of 2.5 to 5.8, a temperature of 15.degree. to 70.degree. C and a current density of 0.5 to 20 A/dm.sup.2 in the presence of a substance which deposits with the metal and ensures a semibright or matte-gloss finish. The substances form in situ within the bath from a cationic or amphoteric first component and a second component consisting of an organic anion interactive with the first component to produce a flocculate.
Abstract:
Production of oxyalkylated acetylenic alcohols by reaction of acetylenic alcohols with alkylene oxides in the presence of phosphines, polar aprotic solvents or thioethers.
Abstract:
THIS INVENTION COMPRISES AN IMPROVEMENT IN A BRIGHT NICKEL PLATING BATH IN WHICH PREVIOUSLY TROUBLESOME PLATING AT CURRENT DESITIES OF LESS THAN 8 A.S.F. OR EVEN UNDER 15 A.S.F. IS AVOIDED BY USING A COMBINATION OF ADDITIVES COMPRISING (A) A SULFO-OXYGEN CONTROL AGENT, (B) A NITROGEN-CONTAINING BRIGHTENER, NAMELY AN AROMATIC MONOAMINE OR AROMATIC POLYAMINE, AN UNSUBSTITUTED POLYETHYLENEPOLYAMINE OR A NITRILE, AND (C) FROM 0.0005 TO 0.1 GRAM PER LITER OF AN ACETYLENIC ALCOHOL HAVING THE FORMULA HC$C-R IN WHICH R IS A HYDROXY-SUBSTITUTED HYDROCARBON RADICAL HAVING 1-8 CARBON ATOMS THEREIN SELECTED FROM THE CLASS CONSISTING OF HYDROXY-SUBSTITUTED ALKYL, ALKENYL AND CYCLOALKYL GROUPS AND THE ALKYLENE OXIDE ADDUCTS THEREOF CONTAINING NO MORE THAN 4 ALKYLENE OXIDE GROUPS AND THE ALKYLENE GROUP THEREIN HAVING 1-4 CARBON ATOMS.