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1. 发明公开

EP0399721A1 Electrical conductors and methods of making them 失效
标题翻译： Elektrische Leiter und Verfahren zu ihrer Herstellung。
公开(公告)号：EP0399721A1
公开(公告)日：1990-11-28
申请号：EP90305266.0
申请日：1990-05-16
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Humpston, Giles , Jacobson, David Michael
IPC分类号： C22C5/02 , C22F1/14 , C22F1/10
CPC分类号： H01L21/4821 , C22C5/02 , C22F1/14 , H01L21/4885 , H01L23/48 , H01L2924/0002 , H01L2924/00
摘要： A method of making material in the form of a fine wire or thin strip or sheet suitable for use as electrical conductors comprises: forming an ingot substantially consisting of an alloy of gold and one or more of the metals titanium, lutetium, zirconium, scandium and hafnium, the amount of the or each of said one or more of the metals in the alloy lying in the range from substantially 0.1 at % to an upper limit comprising the atomic percentage of that metal corresponding to the maximum solubility of that metal in the alloy; solution heat treating the ingot and then quenching the ingot from the solution heat treatment temperature; mechanically working the ingot to have a maximum dimension in at least one direction of not greater than 250 µm; and heat treating the resulting material at a temperature below its solvus temperature in an ambient atmosphere containing oxygen and/or nitrogen in the ambient atmosphere.
The conductors exhibit high tensile strength and resistance to elongation under load and retention of such properties after being heated to elevated temperatures for extended periods of time, such as to render them particularly suitable for use as bond-wires in integrated circuit packages.
摘要翻译：制造适合用作电导体的细线或薄条或片的形式的材料的方法包括：形成基本上由金与一种或多种金属钛，镥，锆，钪和铪，合金中所述一种或多种金属中的每种或每种的量在大约0.1at％至上限的范围内，包括对应于该金属在合金中的最大溶解度的该金属的原子百分比 ; 固溶热处理锭，然后从固溶热处理温度淬火锭; 对锭进行机械加工以至少在一个方向上的最大尺寸不大于250μm; 并在环境气氛中在含有氧和/或氮气的环境气氛中，在低于其固溶温度的温度下对所得材料进行热处理。导体表现出高的拉伸强度和耐负载伸长率，并且在长时间加热到升高的温度之后保持这些性能，使得它们特别适合用作集成电路封装中的接合线。

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