Structure Optimization of Ultrasonic Bonding Transducer Based on Frequency Sensitivity Method

China Mechanical Engineering ›› 2012, Vol. 23 ›› Issue (4): 439-442.

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Structure Optimization of Ultrasonic Bonding Transducer Based on Frequency Sensitivity Method

Long Zhili1;Han Lei2;Zhu Mengpeng2;Zhang Liangliang3

1.Harbin Institute of Technology Shenzhen Graduate School,Shenzhen,Guangdong,518055

2.Central South University,Changsha,410083

3.Dongguan Huazhong University of Science and Technology Manufacturing Engineering Institute,Dongguan,Guangdong,523808

Online:2012-02-25 Published:2012-03-02
Supported by:

National Program on Key Basic Research Project (973 Program)（No. 2009CB724203）;
Guangdong Provincial Science and Technology Major Project ( No. 2011A080801004)

基于频率灵敏度方法的超声键合换能器结构优化

隆志力1;韩雷2;祝孟鹏2;张亮亮3

1.哈尔滨工业大学深圳研究生院,深圳,518055

2.中南大学,长沙,410083

3.东莞华中科技大学制造工程研究院,东莞,523808

基金资助:
国家自然科学基金委员会-广东省人民政府自然科学联合基金资助重点项目(U1134004);国家重点基础研究发展计划(973计划)资助项目(2009CB724203);广东省重大科技专项(2011A080801004)
National Program on Key Basic Research Project (973 Program)（No. 2009CB724203）;
Guangdong Provincial Science and Technology Major Project ( No. 2011A080801004)

Abstract

Abstract:

To the common problems that double resonant peaks or multiple resonant peaks in ultrasonic transducer,a structure optimization method based on frequency sensitivity was introduced in this paper.For an ultrasonic transducer with double peaks used in wire bonding,the modal frequency sensitivity was investigated to control the double peak problems by modifying the minimal diameter of the horn, which can control effectively the disturb from the non-working modal vibration and the transducer can be driven at the resonant frequency,further the stable outputs of the ultrasonic energy will be improved.

Key words: frequency sensitivity, structure optimization, ultrasonic bonding, transducer

摘要：

针对超声换能器设计上存在的双共振峰或多共振峰等常见问题,提出了一种基于频率灵敏度方法的换能器结构优化设计方法。以芯片键合超声换能器为例,采用模态频率灵敏度的方法,通过最小量地修正变幅杆的直径,实现轴向工作频率与其他非工作频率的分离,有效地抑制了工作频率附近杂散的非工作模态对自身模态的干扰,确保在工作状态下换能器被驱动在单一的工作频率,从而提高了超声能量输出的稳定性。



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关键词:

频率灵敏度, 结构优化, 超声键合, 换能器

CLC Number:

TN14

LONG Zhi-Li-1, HAN Lei-2, CHU Meng-Feng-2, ZHANG Liang-Liang-3.

Structure Optimization of Ultrasonic Bonding Transducer Based on Frequency Sensitivity Method

[J]. China Mechanical Engineering, 2012, 23(4): 439-442.

隆志力1, 韩雷2, 祝孟鹏2, 张亮亮3.

基于频率灵敏度方法的超声键合换能器结构优化

[J]. 中国机械工程, 2012, 23(4): 439-442.

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Structure Optimization of Ultrasonic Bonding Transducer Based on Frequency Sensitivity Method

基于频率灵敏度方法的超声键合换能器结构优化

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