印刷配线板用铜箔
申请公布号:CN101904228A
申请号:CN200880121686.2
申请日期:2008.12.19
申请公布日期:2010.12.01
发明人:冈野朋树;洗川智洋;中愿寺美里
分类号:H05K1/09(2006.01)I;C23C14/14(2006.01)I;H05K3/00(2006.01)I
主分类号:H05K1/09(2006.01)I
代理人:熊玉兰;高旭轶
地址:日本东京都
摘要:提供一种印刷配线板用铜箔,其在与绝缘基板的胶粘性及蚀刻性这两个方面皆优异,且适用于精细间距化。该印刷配线板用铜箔,为具备铜箔基材与被覆该铜箔基材表面的至少一部分的被覆层,其中:(1)该被覆层由自铜箔基材表面依次层合的镍层及铬层所构成;(2)在该被覆层中,铬以15~210μg/dm2,镍以15~440μg/dm2的被覆量存在;(3)使用透射式电子显微镜观察该被覆层的截面时,最大厚度为0.5~5nm,最小厚度为最大厚度的80%以上。
主权项:一种印刷配线板用铜箔,具备铜箔基材、与被覆该铜箔基材表面的至少一部分的被覆层,其中:(1)该被覆层由自铜箔基材表面依次层合的镍层及铬层所构成;(2)在该被覆层中,铬以15~210μg/dm2,镍以15~440μg/dm2的被覆量存在;(3)使用透射式电子显微镜观察该被覆层的截面时,最大厚度为0.5~5nm,最小厚度为最大厚度的80%以上。
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