| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface treatment apparatus, a surface treatment method and a method for manufacturing a bonding wire, which reduce a surface area of an electrode in a treatment tank to reduce deterioration of a treatment liquid and also reduce consumption amount of noble metal.SOLUTION: A surface treatment apparatus includes: a treatment tank 20 for storing a treatment liquid 30; guide rollers 50, 51 for transmitting metal wires so that the metal wires 10 move in a horizontal direction in the treatment liquid; and wire-shaped electrode wires 60, 61 arranged on upper and lower sides of the metal wires in parallel with the metal wires. |
