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Hard magnetic layer, useful for electronic memories, is electrodeposited from an electrolyte containing cobalt, optionally nickel, carboxylic acid, sodium hypophosphite and ammonium sulfate
Hard magnetic layer, useful for electronic memories, is electrodeposited from an electrolyte containing cobalt, optionally nickel, carboxylic acid, sodium hypophosphite and ammonium sulfate
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机译:硬磁层可用于电子存储,由包含钴,可选地镍,羧酸,次磷酸钠和硫酸铵的电解质电镀而成
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摘要
Hard magnetic layer is electrodeposited, from an electrolyte containing cobalt, optionally nickel, carboxylic acid, sodium hypophosphite and ammonium sulfate. In an electrolyte and process for electro-deposition of hard magnetic layers, the electrolyte has the composition 1.5-20 g/l Co2+, 0-10 g/l Ni2+, 20-75 g/l carboxylic acid(s) or salt(s), 10-60 g/l sodium hypophosphite and 20-100 g/l ammonium sulfate and is used at 0.1-2.0 A/dm2 cathodic current density, 40-95 deg C and pH 7.1-8.5.
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