Experimental Study on Golf-ball Formation in Wire Bonding by Using High-speed Video Record

China Mechanical Engineering ›› 2013, Vol. 24 ›› Issue (10): 1311-1314.

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Experimental Study on Golf-ball Formation in Wire Bonding by Using High-speed Video Record

Xiang Kang;Han Lei;Wang Fuliang;Li Junhui

Key Laboratory of Modern Complex Equipment Design and Extreme Manufacturing,Ministry of Education,Central South University,Changsha,410083

Online:2013-05-25 Published:2013-05-28
Supported by:
National Program on Key Basic Research Project (973 Program)（No. 2009CB724203）

基于高速摄像的引线键合高尔夫球现象形成规律实验研究

向康;韩雷;王福亮;李军辉

中南大学现代复杂装备设计与极端制造教育部重点实验室,长沙,410083

基金资助:
国家重点基础研究发展计划（973计划）资助项目（2009CB724203）
National Program on Key Basic Research Project (973 Program)（No. 2009CB724203）

Abstract

Abstract:

High-speed camera system was used to record image sequences of gold rail melting to form FAB(free air ball) under different EFO(electronic flame-off) parameters.The image was processed through the MATLAB software to get the diameter of FABs and the distance between ball center and centerline of gold tail.The experimental results include:the distances are of instability and have large difference under the big EFO current (I=60mA) or smaller default ball diameter(D=1.6mil) or other conditions.
At the same time, it is easy to appear golf-ball in these conditions and influence wire bonding quality seriously.

Key words: high-speed camera, MATLAB, image processing, golf-ball, wire bonding

摘要：

利用高速摄像系统记录不同打火参数下打火杆放电、尾丝熔化成球的序列图像。通过MATLAB对图像进行图像处理，得到最终成球的直径及其球心与尾丝中心线的偏距。实验发现，在较大的打火电流(I=60mA)或较小的预设球直径(D=40.64μm(1.6mil))等条件下,球心与尾丝中心线的偏距不稳定且相差较大，易出现高尔夫球现象,严重影响引线键合的质量。

关键词: 高速摄像, MATLAB, 图像处理, 高尔夫球, 引线键合

CLC Number:

TN305.96

XIANG Kang, HAN Lei, WANG Fu-Liang, LI Jun-Hui. Experimental Study on Golf-ball Formation in Wire Bonding by Using High-speed Video Record[J]. China Mechanical Engineering, 2013, 24(10): 1311-1314.

向康, 韩雷, 王福亮, 李军辉. 基于高速摄像的引线键合高尔夫球现象形成规律实验研究[J]. 中国机械工程, 2013, 24(10): 1311-1314.

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Experimental Study on Golf-ball Formation in Wire Bonding by Using High-speed Video Record

基于高速摄像的引线键合高尔夫球现象形成规律实验研究

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