摘要:
The present invention relates to a method for depositing a zinc-nickel alloy on a substrate, particularly to a method for electrolytically depositing a zinc-nickel alloy on a substrate, wherein a zinc-nickel deposition bath is utilized as a catholyte comprising at least one brightening agent, wherein the at least one brightening agent has a source which is substantially free of, preferably does not comprise, halogen anions. The present invention furthermore relates to a respective aqueous zinc-nickel deposition bath, a respective brightening agent, and a respective use of said brightening agent for replenishing in an aqueous zinc-nickel deposition bath.
摘要:
The present invention relates to a method for providing a multilayer coating on a surface of a substrate comprising the following method steps (i) providing the substrate; (ii) depositing at least one metal oxide compound onto the surface of the substrate; (iii) heat-treating the surface of the substrate such that a metal oxide is formed thereon; (iv) treating the surface of the substrate with a treatment solution comprising at least one nitrogen containing polymeric treatment additive; (v) treating the surface of the substrate with an activation solution; and (vi) treating the surface of the substrate with a metallising solution such that a metal or metal alloy is deposited thereon. The invention further concerns the use of treatment additives as enhancer for the metal deposition.
摘要:
A tin-zinc alloy plating bath composition comprising a quaternary ammonium polymer additive. A process for deposition of tin-zinc alloys from a plating bath composition comprising a quaternary ammonium plating additive onto a substrate.
摘要:
The invention provides silane compositions which are useful as adhesives, in particular in the preparation of multi-layer laminates such as printed circuit boards. The silane compositions comprise at least one coupling agent selected from the group consisting of (A-1) a silane coupling agent of the formula A (4-x) SiB x (wherein A is a hydrolyzable group, x is 1 to 3, and B is as defined in the description); (A-2) a silane coupling agent of the formula X-{B-[R-Si(A) 3 ] z } x (wherein X is a linear or branched hydrocarbon chain containing from 5 to 10 carbon atoms, B is a divalent or trivalent hetero atom, A is a hydrolyzable group and R, z and x are as defined in the description); (A-3) a tetraorgano silane coupling agent of the formula Si(OR) 4 (wherein R is hydrogen, alkyl, aryl, aralkyl, allyl or alkenyl); and (A-4) a water soluble silicate coupling agent characterized by the formula SiO 2 • x M 2 O (wherein x is 1 to 4, and M is an alkali metal or ammonium ion); and (B) a colloidal silica; with the proviso that (a) said colloidal silica (B) is optional if at least one of compounds (A-3) or (A-4) is present; and (b) said colloidal silica (B) is mandatory if none of compounds (A-3) or (A-4) is present. The invention further provides the use of such silane compositions for the production of multilayer circuit boards and the multilayer circuit boards thus obtained.
摘要:
The present invention relates to a biuret-based quaternized polymer comprising a polymeric building block according to formula (I)
as well the corresponding biuret-based quaternized monomers and a method of synthesizing said biuret-based quaternized polymers from said biuret-based quaternized monomers, as well as metal or metal alloy plating baths comprising said polymers as additives and a method for deposition of a metal or metal alloy on a substrate.
摘要:
An aqueous bath for filling a vertical interconnect access or trench of a work piece with nickel or a nickel alloy, the bath comprising - a source of nickel ions, and optionally a source of ions of at least one alloying metal, - at least one buffering agent, - at least one of a dimer of a compound of formula (I) or mixtures thereof
wherein R 1 is a substituted or unsubstituted alkenyl group, R 2 may be present or not, and if present R 2 is a -(CH 2 ) n -SO 3 - group, wherein n is an integer in the range of 1-6, and wherein one or more of the hydrogens in the group may be replaced by a substituent, preferably hydroxide; and a method for filling a vertical interconnect access or trench of a work piece with nickel or a nickel alloy with said aqueous bath.
摘要:
The present invention concerns pyridinium compounds, a synthesis method for their preparation, metal or metal alloy plating baths containing said pyridinium compounds and a method for use of said metal or metal alloy plating baths. The plating baths are particularly suitable for use in filling of recessed structures in the electronics and semiconductor industry including dual damascene applications.
摘要:
The present invention relates to imidazoyl urea polymers and their use in aqueous acidic plating baths for metal or metal alloy deposition such as electrolytic deposition of copper or alloys thereof in the manufacture of printed circuit boards, IC substrates, semiconducting and glass devices for electronic applications. The plating bath according to the present invention comprises at least one source of metal ions and an imidazoyl urea polymer. The plating bath is particularly useful for filling recessed structures and build-up of pillar bump structures.
摘要:
Beschrieben wird ein wässriges cyanid-freies Elektrolytbad zur Abscheidung von Zinn-Legierungsschichten auf Substratoberflächen, umfassend (i) eine Zinn-Ionenquelle und eine Quelle für ein weiteres Legierungselement, dadurch gekennzeichnet, dass sie weiterhin (ii) N-Methylpyrrolidon enthält.