GOLD ALLOY THIN WIRE AND GOLD ALLOY BUMP

摘要

TO PROVIDE A GOLD ALLOY THIN WIRE AND A BUMP FORMED THEREFROM WITH A SMALL NECK LENGTH STABLY OBTAINED UPON THE WIRE BREAKAGE AFTER BALL BONDING, A GOLD ALLOY THIN WIRE CONTAINS 0.2 TO 5000 PPM BY WEIGHT OF SI AND THE BALANCE OF GOLD AND UNAVOIDABLE IMPURITIES. THE WIRE MAY FURTHER CONTAINES, OTHER THAN SI, A TOTAL AMOUNT OF 0.2 TO 300 PPM BY WEIGHT OF AT LEAST ONE FROM THE FIRST GROUP OF CA, BE, LA, AND CE; OR A TOTAL AMOUNT OF 1 TO 500 PPM BY WEIGHT OF AT LEAST ONE FROM THE SECOND GROUP OF Y, SC, SR, GA, GE, AND IN; OR A TOTAL AMOUNT OF 2 TO 10000 PPM BY WEIGHT OF AT LEAST ONE FROM THE THIRD GROUP OF CU, PD, PT, A1, AND MN.FIGURE 3.