发明名称 Method of lining up micro-balls
摘要 A method of lining up micro-balls on an arraying jig includes removing an excess of the micro-balls located thereat with ease. The micro-balls are supplied onto the arraying jig having a plurality of array holes formed therein. A cylindrical body is disposed above the arraying jig, and the micro-balls are maintained at the array holes by an air vacuum through the array holes of the arraying jig. A standing wave having nodes formed concentrically is generated inside the cylindrical body by subjecting the cylindrical body to ultrasonic vibration, so that the micro-balls are concentrated at the nodes of the standing wave. By moving the cylindrical body horizontally over the arraying jig while maintaining the ultrasonic vibration, the micro-balls are distributed into the respective array holes. By weakening a suction force acting through the array holes and subjecting the cylindrical body to ultrasonic vibration while moving the cylindrical body horizontally over the arraying jig, the excess of the micro-balls at the top of the arraying jig is concentrated at the nodes of the standing wave, and then is removed.
申请公布号 US6255132(B1) 申请公布日期 2001.07.03
申请号 US20000510774 申请日期 2000.02.23
申请人 ANDO ELECTRIC CO., LTD. 发明人 FUJIMURA NAOYUKI
分类号 H01L21/60;H01L21/68;H01L21/683;(IPC1-7):H01L21/00 主分类号 H01L21/60
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