| 摘要 |
PURPOSE:To stabilize an electroless plating soln. by adding an amine type complexing agent and a very small amount of a stabilizer to the soln. CONSTITUTION:The titled plating soln. is obtd. by adding a complexing agent and a very small amount of a stabilizer to an aqueous soln. contg. silver ions as a plating soln. for chemically depositing silver by reduction. The complexing agent is selected among ammonia, compounds each having one or more amino groups such as ethylenediamine and sulfanilic acid, and amino acids each having amino and carboxyl groups such as glutamic acid and aminobutyric acid. The stabilizer is selected among amino acids such as 3,5-diiodotyrosine, halogenocarboxylic acids such as iodoacetic acid, and inorg. compounds such as sodium thiosulfate. |
