电子材料用Cu-Ni-Si-Co-Cr系铜合金及其制造方法
申请公布号:CN101151385A
申请号:CN200680009829.1
申请日期:2006.03.31
申请公布日期:2008.03.26
发明人:江良尚彦;深町一彦;桑垣宽
分类号:C22C9/06(2006.01);C22F1/08(2006.01);C22F1/00(2006.01);H01L23/48(2006.01)
主分类号:C22C9/06(2006.01)
代理人:庞立志;李平英
地址:日本东京都
摘要:本发明提供强度和导电性极大提高、具有优异特性的电子材料用Cu-Ni-Si-Co-Cr系铜合金。该电子材料用Cu-Ni-Si-Co-Cr系铜合金的特征是含有Ni:约0.5~约2.5质量%、Co:约0.5~约2.5质量%、和Si:约0.30~约1.2质量%,Cr:约0.09~约0.5质量%,其余部分由Cu和不可避免的杂质构成,该合金组成中的Ni和Co的合计量相对于Si的质量浓度比为:约4≤[Ni+Co]/Si≤约5,该合金组成中的Ni和Co的质量浓度比为:约0.5≤Ni/Co≤约2,对于分散在材料中的大小为1μm以上的夹杂物的个数(P)、其中的含碳浓度为10质量%以上的夹杂物的个数(Pc),Pc约为15个/1000μm<SUP>2</SUP>以下,且其比Pc/P≤约0.3以下。
主权项:1.电子材料用Cu-Ni-Si-Co-Cr系铜合金,其特征是含有Ni:约0.5~约2.5质量%、Co:约0.5~约2.5质量%、和Si:约0.30~约1.2质量%、Cr:约0.09~约0.5质量%,其余部分由Cu和不可避免的杂质构成,该合金组成中的Ni和Co的合计量相对于Si的质量浓度比([Ni+Co]/Si比)为:约4≤[Ni+Co]/Si≤约5,该合金组成中的Ni和Co的质量浓度比(Ni/Co比)为:约0.5≤Ni/Co≤约2,对于分散在材料中的大小为1μm以上的夹杂物的个数(P),其中的含碳浓度为10质量%以上的夹杂物的个数(Pc),Pc为约15个/1000μm2以下,且其比(Pc/P)为约0.3以下。
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