| 摘要 |
PROBLEM TO BE SOLVED: To provide alloy wire which has the same function as bonding wire made of pure gold and can significantly reduce a cost.SOLUTION: A method for producing alloy wire comprises the steps of: preparing pure silver as main material; inputting the main material in a vacuum melting furnace, mixing pure palladium as auxiliary material into the vacuum melting furnace at mixing ratio different from that of the pure silver and then mixing and dissolving them to produce silver palladium alloy molten metal; continuously casting the silver palladium alloy molten metal and drawing the metal into a silver palladium alloy wire; and drawing the silver palladium alloy wire into silver palladium alloy bonding wire having a predetermined diameter. |
