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Ultrasonic Micro-welding Using High-Frequency and Complex Vibrations

利用高频和复杂振动的超声波微焊接

基本信息

批准号：
07555530
负责人：
TSUJINO Jiromaru
金额：
$ 5.18万
依托单位：
KANAGAWA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555530/
关键词：
ultrasonic wire bonding ultrasonic micro-joining frequency characteristic of ultrasonic welding high frequency vibration system complex vibration ultrasonic welding vibration locus of welding tip ceramic capillary vibration distributions of

项目摘要

1.Frequency characteristics of ultrasonic welding High-frequency systems at 90-780 kHz have been shown that high-frequency systems become to be significantly effective in comparison to a conventional system at 60 kHz. The required vibration velocity v and displacement amplitude xi decrease as frequency increases. v=Af^<-0.6>, xi=Bf^<-1.49> A,B : constants. A peak-to-zero value of 0.04 mum at 780 kHz is 1/30 of that at 60 kHz.2.Complex vibration locus welding tip was found to be effective for improving the welding characteristics. Welding characteristics and temperature rise of ultrasonic wire bonding using 190 kHz circular and square vibration loci are equivalent to these of a 600 kHz linear vibration locus. Complex vibration welding tips which vibrate in elliptical to circular or rectangular to square shapes at either the same or different frequencies effectively joined welding specimens successfully in shorter welding times, under smaller vibration amplitudes, and over wider good welding areas in comparison to linear locus.3.High-frequency longitudinal to complex transverse vibration systems 160 kHz - 1 MHz were proposed for ultrasonic ball bonding using a ceramic capillary. Aluminum wire specimens of 0.1 mm diameter were successfully joined using the 400 kHz longitudinal-complex transverse vibration system.4.The conventional ceramic capillaries were found vibrating with two or three nodes along the capillary at 400 kHz - 1 MHz. The vibration velocity amplitude obtained at the welding tip is sufficient for successful welding.5.The welding characteristics of the ultrasonic wire bonding were found to be significantly improved by these results obtained by this research. The high-frequency welding systems available in two vibration frequencies, for an example 160 and 500 kHz, were developed.6.The automatic system using high-frequency and complex vibration systems is under working, and also welding characteristics using ultra-high frequency is under investigation.

1.超声波焊接的频率特性90-780 kHz的高频系统已经表明，与60 kHz的常规系统相比，高频系统变得非常有效。所需的振动速度v和位移振幅xi随着频率的增加而减小。v=Af^<-0.6>，xi=Bf^<-1.49>A，B：常数。在780 kHz时的峰零值为0.04 μ m，是60 kHz时的1/30。2.复合振动轨迹焊接头被发现是有效的，以改善焊接特性。使用190 kHz圆形和方形振动轨迹的超声波引线键合的焊接特性和温升与600 kHz线性振动轨迹的焊接特性和温升相当。以相同或不同的频率以椭圆形到圆形或矩形到正方形振动的复合振动焊接头在较小的振动幅度下在较短的焊接时间内成功地有效地连接了焊接试样，3.高频纵向到复杂横向振动系统160 kHz -1 MHz的超声球键合，提出了使用陶瓷毛细管。采用400 kHz的复合振动系统成功地连接了直径为0.1 mm的铝丝试样。4.在400 kHz - 1 MHz频率下，传统陶瓷毛细管沿毛细管沿着有两个或三个节点振动。在焊接头处获得的振动速度幅值是足够的成功焊接。5.超声引线键合的焊接特性被发现显着改善由本研究所获得的这些结果。开发了两种振动频率的高频焊接系统，例如160和500 kHz。6.使用高频和复杂振动系统的自动系统正在工作中，并且正在研究使用超高频的焊接特性。