发明名称 |
ARTICLE COMPRISING CREEP-RESISTANT AND STRESS-REDUCING SOLDER |
摘要 |
The invention relates to use of a solder composition exhibiting a desired combination of high creep resistance at typical operating temperatures and low stress in formed solder joints. The invention uses a solder containing 82 to 85 wt.% Au, 12 to 14 wt.% Sn, and 3 to 4 wt.% Ga (optionally with up to 2 wt.% additional elements). The small amount of added Ga induces a significant depression in the liquidus temperatures of both Au and Sn, and thus a depressed melting point (about 27.degree.C less than eutectic Au-Sn solder), and also provides an enhanced temperature-sensitivity of the solder's creep resistance. |
申请公布号 |
CA2341838(A1) |
申请公布日期 |
2001.10.13 |
申请号 |
CA20012341838 |
申请日期 |
2001.03.22 |
申请人 |
AGERE SYSTEMS GUARDIAN CORPORATION |
发明人 |
KAMMLOTT, GUENTHER WILHELM;JIN, SUNGHO;MAVOORI, HAREESH |
分类号 |
G02B6/30;B23K35/30;C22C5/02;G02B6/42;H01L31/02;H01L33/00;H01S5/02;H01S5/022;(IPC1-7):B23K35/26 |
主分类号 |
G02B6/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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