金含量和键合参数对Ag-Au-Pd合金丝自由空气球形态及键合可靠性的影响研究

Study on the Influence of Au Content and Bonding Parameters on the Free Air Ball Morphology and Bonding Reliability of Ag-Au-Pd Alloy Wire.

作者信息

Fan Junling, He Fang, Chen Bing, Zhang Junchao, Yang Fan, Cao Jun, Wang Furong

机构信息

School of Chemical and Environmental Engineering, Jiaozuo University, Jiaozuo 454000, China.

School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000, China.

出版信息

Micromachines (Basel). 2024 Dec 20;15(12):1512. doi: 10.3390/mi15121512.

DOI:10.3390/mi15121512

PMID:39770265

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11728427/

Abstract

This article conducts wire bonding tests and cold/hot-cycle tests using φ 0.025 mm Ag-Au alloy wires and Ag-Au-Pd alloy wires with different specifications. The results show that, due to the addition of the alloying element Pd, under the same bonding parameters, the fracture strength and ball-bonded point shear force of the Ag-Au-Pd alloy wires are significantly higher than those of the Ag-Au alloy wires. After the cold/hot-cycle tests, the failure probability of the Ag-Au-Pd alloy wires is approximately half that of the Ag-Au alloy wires. Among Ag-Au-Pd alloy wires, 92% break at the ideal positions, while 77% of the Ag-Au alloy wires break at the necks. As the Au content increases, the Free Air Ball (FAB) morphology of the Ag-Au-Pd alloy wires becomes more and more regular, gradually transitioning from a pointed ball to an ellipsoid and finally presenting a spherical shape.

摘要

本文使用不同规格的φ0.025mm银金合金丝和银金钯合金丝进行了引线键合测试和冷热循环测试。结果表明，由于添加了合金元素钯，在相同的键合参数下，银金钯合金丝的断裂强度和球形键合点剪切力明显高于银金合金丝。经过冷热循环测试后，银金钯合金丝的失效概率约为银金合金丝的一半。在银金钯合金丝中，92%在理想位置断裂，而77%的银金合金丝在颈部断裂。随着金含量的增加，银金钯合金丝的自由空气球（FAB）形态变得越来越规则，逐渐从尖球过渡到椭球体，最终呈现球形。