| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a defatting method of a bonding wire with which sufficient defatting effects can be obtained while preventing a flaw from being generated in the bonding wire subjected to defatting, and a manufacturing method of a coated bonding wire using the same. <P>SOLUTION: A defatting method of a bonding wire for defatting a bonding wire 5 using electrophoresis includes a first defatting step for immersing and passing the bonding wire in a first tub 10 containing a first alkaline solution 30 and provided with an anode 50 for effecting electrophoresis in the first alkaline solution, and a second defatting step for immersing and passing the bonding wire which has passed through the first tub, in a second tub 20 containing a second alkaline solution 40 and provided with a cathode for effecting the electrophoresis in the second alkaline solution. <P>COPYRIGHT: (C)2013,JPO&INPIT |
