公开(公告)号：US20020072213A1

公开(公告)日：2002-06-13

申请号：US09731730

申请日：2000-12-08

发明人： Tao-Kuang Chang

IPC分类号： H01L021/44 ,  B22F009/06 ,  B22F009/08 ,  B22F009/10 ,  B22F009/14

CPC分类号： B23K35/0244 ,  B22F1/0048 ,  B22F9/08 ,  H01L24/11 ,  H01L2224/13099 ,  H01L2224/73204 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01079 ,  H01L2924/014 ,  H05K3/3478 ,  Y10S438/975 ,  H01L2224/0401

摘要： A soldering ball fabrication method includes the steps of: (1) drawing a metal wire rod into the desired thickness, (2) cutting the metal wire thus obtained into pieces subject to the desired length, (3) washing the pieces of metal wire to remove dust, (4) processing the pieces of metal wire into balls, (5) washing the balls thus obtained, (6) using a screen to select the balls, (7) inspecting selected balls, and (8) obtaining approved soldering balls.

摘要翻译： 焊球制造方法包括以下步骤：（1）将金属线材拉成所需厚度，（2）将所得金属线材切割成所需长度的片，（3）将金属丝片清洗成 去除灰尘，（4）将金属丝加工成球，（5）洗涤如此获得的球，（6）使用筛网选择球，（7）检查选定的球，以及（8）获得批准的焊球 。

公开(公告)号：US20020031677A1

公开(公告)日：2002-03-14

申请号：US09860803

申请日：2001-05-18

发明人： Melissa Orme-Marmerelis ,  Robert F. Smith

IPC分类号： B22F009/14

CPC分类号： B22F1/0048 ,  B22F9/08 ,  B22F2009/0836 ,  B22F2009/084 ,  B22F2998/00 ,  H05K3/3457 ,  H05K3/3478 ,  Y10T428/12014 ,  B22F2202/01

摘要： In a high-speed fabrication process for producing highly uniform ultra-small metallic micro-spheres, a molten metal is passed through a small orifice, producing a stream of molten metal therefrom. A series of molten metal droplets forms from the break up of the capillary stream. Applied harmonic disturbances are used to control and generate satellite and parent droplets. Significantly, the satellite droplets formed are smaller than the orifice, allowing for the production of smaller metal balls with larger orifices. The satellite droplets are separated from the parent droplets by electrostatic charging and deflection or by aerodynamic or acoustic sorting. Preferably, the satellite droplets are cooled before being collected to avoid defects and achieve high uniformity of the resulting metal balls.

摘要翻译： 在用于制造高度均匀的超小金属微球的高速制造工艺中，熔融金属通过小孔，从其中产生熔融金属流。 从毛细管流的分解形成一系列熔融金属液滴。 应用谐波干扰用于控制和产生卫星和亲水滴。 显着地，形成的卫星液滴小于孔口，允许生产具有较大孔口的较小金属球。 卫星液滴通过静电充电和偏转或通过气动或声学分选与母液滴分离。 优选地，卫星液滴在被收集之前被冷却以避免缺陷并实现所得金属球的高均匀性。