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Cu ball, OSP-treated Cu ball, Cu core ball, solder joint, solder paste, foam solder, and manufacturing method of Cu ball

机译:铜球,经OSP处理的铜球,铜芯球,焊点,焊锡膏,泡沫焊料及其制造方法

摘要

Provided are Cu balls, OSP-treated Cu balls, Cu core balls, solder joints, solder pastes, and foam solders that realize high sphericity and low hardness and are also suppressed from discoloration. The electronic component 60 is configured by bonding the solder bumps 30 of the semiconductor chip 10 and the electrodes 41 of the printed board 40 with solder pastes 12 and 42. The solder bump 30 is formed by bonding the Cu ball 20 to the electrode 11 of the semiconductor chip 10. The Cu ball 20 has a purity of 99.995% by mass or more and 99.9995% by mass or less, and the total content of at least one of Fe, Ag, and Ni is 5.0 mass ppm or more and 50.0 mass ppm or less, and the S content is 1.0 mass ppm The content of P is less than 3.0 ppm by mass.
机译:提供实现高球形度和低硬度并且还抑制了变色的Cu球,经OSP处理的Cu球,Cu芯球,焊点,焊膏和泡沫焊料。通过将半导体芯片10的焊料凸块30和印刷电路板40的电极41与焊料膏12和42粘合而构成电子部件60。焊料凸块30是通过将Cu球20粘合到电极11上而形成的。 Cu球20的纯度为99.995质量%以上且99.9995质量%以下,Fe,Ag和Ni中的至少一种的总含量为5.0质量ppm以上且50.0。 S的含量为1.0质量ppm以下。P的含量为3.0质量ppm以下。

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