众所周知,在集成电路芯片中,集成各种电子元件的半导体晶片与伸出封装壳体外的接脚之间,要用金属导线焊接。通常这种导线用金、铝或其合金制成。金具有非常优良的导电性、韧性和可加工性,但金导线不能用于通过大电 As we all know, in the integrated circuit chip, the integration of various electronic components between the semiconductor chip and extends out of the package shell between the pins, the use of metal wire welding. This wire is usually made of gold, aluminum or its alloys. Gold has very good electrical conductivity, toughness and workability, but the gold wire can not be used for large electricity