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GOLD-OR GOLD ALLOY-PLATING COMPOSITION AND PLATING USING THE SAME
GOLD-OR GOLD ALLOY-PLATING COMPOSITION AND PLATING USING THE SAME
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机译:金或金合金镀层成分并使用相同的镀层
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摘要
PURPOSE: To obtain a gold- or gold alloy-plating composition which enables prevention of burn from being caused at high current density and an improvement in electrodeposition rate of a bright deposition coating film by preparing a plating composition comprising a source of gold ions, optionally a source of alloying metal ions, optionally a complexing agent for the alloying metal ions and a rate-promoting additive compound that is a specific pyridine derivative. ;CONSTITUTION: This gold- or gold alloy-plating composition comprises: a source of gold ions; optionally a source of alloying metal (such as nickel or cobalt) ions; optionally a complexing agent for the alloying metal ions; and a rate-promoting additive compound. In the composition, the additive compound is at least one compound represented by the formula 1A or 1B (wherein: each of R1 and R2 is a hydrogen or halogen atom or a formyl, carbamoyl, 1-4C alkyl, amino, phenyl or benzyl group; R3 is a 1-6C alkylene group; and Q is SO2 or CO). Also, the source of gold ions is preferably a gold (I) salt contg. gold in a 2 to 20 g/l concn. and as the alloying metal ions, e.g. nickel, cobalt or iron ions can be used appropriately in a 0.05 to 5 g/l concn. Further, as the complexing agent, citric acid or oxalic acid can appropriately be used in a 0.05 to 10 g/l.;COPYRIGHT: (C)1994,JPO
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机译:用途:通过制备包含金离子源的电镀组合物,获得能够防止在高电流密度下引起灼伤并改善亮沉积涂膜的电沉积速率的金或金合金电镀组合物合金化金属离子的来源,可选地是用于合金化金属离子的络合剂和作为特定吡啶衍生物的增速添加剂化合物。 ;组成:这种镀金或镀金合金的成分包括:金离子源;任选地合金化金属(例如镍或钴)离子的来源;任选地,用于使金属离子合金化的络合剂;和增速添加剂化合物。在组合物中,添加剂化合物是至少一种由式1A或1B表示的化合物(其中:R 1 Sup>和R 2 Sup>分别是氢或卤素原子或甲酰基,氨基甲酰基,1-4C烷基,氨基,苯基或苄基; R 3 Sup>为1-6C亚烷基; Q为SO 2 Sub>或CO)。另外,金离子的来源优选为含金(I)盐。金在2至20克/升的浓度中和作为合金化的金属离子,例如镍,钴或铁离子的使用浓度为0.05至5 g / l。此外,作为络合剂,柠檬酸或草酸可以以0.05至10g / l的量适当使用。COPYRIGHT:(C)1994,JPO
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