VOLUME 18 NO. 1 WIRE BONDING ASM International
The life and subsequent failure of gold ball bonds on aluminum bond pads by Kirkendall voiding has been well documented. At temperatures above 150 °C for some pack ages, this can occur quickly and catastrophically. Bonds literally fall off with almost no stress. New 99.9 gold alloy wires standard gold bonding wire is 99.99 gold






































