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发明名称
印刷电路板及印刷电路板之制造方法
摘要
〔课题〕提出藉由作为强度、密着性优良的焊料垫构造,而在密着性、电连接性、信赖性方面优良的印刷电路板。〔解决手段〕在焊料垫77U上,由Ni层72、Pd层73所构成的复合层被形成,该复合层上的焊料76α系由不含有铅的焊料构成。因为Pd层(钯层)使焊料无法调合等现象降低,可使与焊料的密着性提高。Pd层和金层比较,因为刚性优良,热应力在Pd层内被吸收、缓冲,可使藉由热应力传达至焊料块或焊料层的应力减低。
申请公布号
TW200612797
申请公布日期
2006.04.16
申请号
TW094115550
申请日期
2005.05.13
申请人
宜比典股份有限公司
发明人
岩井勤;小寺美宏;前田伸也;渡边裕之;铃木一成;塚田辉代隆
分类号
H05K3/10
主分类号
H05K3/10
代理机构
代理人
洪澄文
主权项
地址
日本
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