GOLD OR GOLD ALLOY WIRE FOR BONDING SEMICONDUCTOR CRYSTAL INSEMICONDUCTOR STRUCTURE ELEMENT TO CONNECTING POSITION

摘要

Known gold and gold-alloy wires for connecting semiconductor chips to terminals on the lead frame often exhibit loop formations, drifts and excess lengths when automatically bonded. This is avoided if at least 50% of the crystallites in the wire have a preferred orientation in the axial direction corresponding to a &Lang&100&Rang& fibre structure.