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Aqueous acidic tin-lead immersion plating bath containing weak acid and weak base
Aqueous acidic tin-lead immersion plating bath containing weak acid and weak base
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机译:含弱酸和弱碱的酸性锡铅水浸镀浴
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摘要
Immersion tin-lead baths are provided, preferably free of hypophosphite ion, comprising a strongly acidic aqueous solution comprised of thiourea, water-soluble sources of divalent tin and lead, a weak acid, and a weak base.
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