发明名称 Method for degolding or tinning conductive portions of a microelectronic device
摘要 The method comprises the steps of providing a vessel for containing a solder melt, and a bowl having a horizontal upper rim with an upwardly directed edge extending therealong; immersing the bowl in the solder melt contained in the vessel; lifting the bowl to a position where at least the upper rim is located above the solder melt contained in the vessel, whereby molten solder is drawn by the bowl; dipping conductive elements of a device into the molten solder drawn by the bowl; separating the conductive elements from the molten solder drawn by the bowl; and, immediately after the separation, spinning the device about a substantially vertical axis. The spinning step comprises a first phase of submitting the device to a selected angular acceleration, a second phase, having a selected duration of spinning the device at a selected maximum rotational velocity, and a third phase submitting the device to a selected angular deceleration.
申请公布号 US5288009(A) 申请公布日期 1994.02.22
申请号 US19920980160 申请日期 1992.11.23
申请人 CARRAR 发明人 CORLAY, CHRISTIAN;GERMAIN, JEAN-CLAUDE;CHEVALIER, CLAUDE
分类号 B23K1/20;H01L21/60;(IPC1-7):B23K1/08;B23K1/018 主分类号 B23K1/20
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