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    • 4. 发明授权
    • Lead free solder alloy
    • 无铅焊料合金
    • US08221560B2
    • 2012-07-17
    • US12309382
    • 2008-09-04
    • Kang Hee KimYong Cheol ChuMyoung Ho ChunSang Ho JeonHyun Kyu Lee
    • Kang Hee KimYong Cheol ChuMyoung Ho ChunSang Ho JeonHyun Kyu Lee
    • B23K35/22
    • B23K35/262B23K35/40C22C1/02C22C13/00H05K3/3463
    • Disclosed herein are a lead-free solder alloy and a manufacturing method thereof. More specifically, disclosed are: a lead-free solder alloy, which comprises 0.8-1.2 wt % silver (Ag), 0.8-1.2 wt % copper (Cu), 0.01-1.0 wt % palladium (Pd), 0.001-0.1 wt % tellurium (Te), and a balance of tin (Sn), and thus has a melting point similar to those of prior lead-free solder alloys, excellent wettability, very low segregation ratio, and excellent weldability with a welding base metal, such that it improves temperature cycle performance and drop impact resistance simultaneously, when it is applied to electronic devices and printed circuit boards; a manufacturing method of the above alloy; and electronic devices and printed circuit boards which include the same.
    • 本发明公开了一种无铅焊料合金及其制造方法。 更具体地,公开了:无铅焊料合金,其包含0.8-1.2重量%的银(Ag),0.8-1.2重量%的铜(Cu),0.01-1.0重量%的钯(Pd),0.001-0.1重量% 碲(Te)和锡(Sn)的平衡,因此具有与现有无铅焊料合金相似的熔点,优异的润湿性,极低的偏析比和与焊接母材具有优异的焊接性,使得 当它应用于电子设备和印刷电路板时,同时提高温度循环性能和降低耐冲击性; 上述合金的制造方法; 以及包括其的电子设备和印刷电路板。