Electroless gold plating bath

Details Electroless gold plating bath Electroless gold plating bath

1994-03-25

1994-11-15

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 126, C23C 1844

Patent

active

053644603

ABSTRACT:
To a neutral electroless gold plating bath comprising a gold sulfite, a sulfite, and a reducing agent, there are added an organic phosphonic acid or a salt thereof and an optional stabilizer in the form of a non-ionic surfactant or non-ionic polymer. A gold plating film having an aesthetic lemon yellow color tone and susceptible to bonding deposits on an article from the bath without attacking the base material of the article and without plating spread.

REFERENCES:
patent: H325 (1989-09-01), Mallory, Jr. et al.
patent: 4830668 (1989-05-01), Wundt et al.
patent: 5232492 (1993-08-01), Krulik et al.

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