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of parameters that influence bonding quality. For example, many factors, such as ultrasonic energy, temperature, pressure, quality of gold ball, the arch of gold wire, and the motion stability of the machine... and ultrasonic energy of the transducer was analyzed by join time-frequency analysis. 2 Bonding system and process Thermosonic wire bonding is a process where gold ball and Ag substrate are joined......
with promising cost saving compared to gold wire bonding and better electrical performance compared to aluminum wire[1]. There are lots of studies on thermosonic gold ball bonding and ultrasonic aluminum wedge... of Electronic Materials, 2006, 35(3): 433-442. [7] HARMAN G G, ALBERS J. Ultrasonic welding mechanism as applied to aluminum- and gold-wire bonding in microelectronics [J]. IEEE Trans Parts, Hybrids Packaging......
of wire bonding process HAZ were investigated.2 Theory The most important parameters governing the melting and resolidification of the gold wire are the wire diameter(d), the discharge current(I...): 1776-1781. [9] CHANG Wei-yao, HSU Hsiang-chen, FU Shen-li, YEH Chang-lin, LAI Yi-shao. Characteristic of heat affected zone for ultra thin gold wire/copper wire and advanced finite element wire bonding......
. The interfacial temperature rise during gold wire ball bonding was not that high (70- 80 ℃) tested by using real-time temperature monitoring systems with 6 μm thermocouples by Suman et al[7] and Mayer et al[8... but in basis material or weak places. References [1] Harman G G. The ultrasonic welding mechanism as applied to aluminum- and gold-wire bonding in microelectronics[J]. IEEE Transactions on Packaging......
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Abstract: Based on the analysis model, the ultrasonic transfer on the horn of wire bonder was studied. A dynamics equation of the composite transducer is established by the vibration equation....
Key words: ultrasonic wave; horn; wire bonding
Electrochemical and Reaction Bonding Processing of Thick ZrO2/Al2O3 Composite Coatings
WANG Zhou-cheng1,XIAO Ping2
(1.Dept. of Materials Science and Engineering, Xiamen University, Xiamen, China...; reaction bonding process; composite coating; Al2O3; ZrO2;
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......Electrochemical and Reaction Bonding Processing of Thick ZrO2/Al2O3 Composite Coatings
来源： 《材料热处理学报2004年第5期》——WANG Zhou-cheng XIAO Ping
. Though the production of "wire mesh reinforced" dissimilar aluminum plates is possible by diffusion bonding and gas pressure infiltration, the presence of high heat and a longer processing time promote... to achieve metallurgical bonding with the base metal. 2) The uneven surface on the wire mesh enhances the friction force and results in a better clad than a sheet interlayer. 3) Increase in loading ratio......
electroless plating and organic protection coating. We present experimental data on coating process, microstructure of the interlayer and the silver film, and corrosion resistance of the coated composite. 2... before and after etching the samples coated with interlayer, and electroless metallization with silver using a scanning electron microscope (SEM). The non-conducting specimens were coated with gold......
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New Type Gold Bonding Wire高瑞,江轩,吕保国,班立志摘 要:ＮｅｗＴｙｐｅＧｏｌｄＢｏｎｄｉｎｇＷｉｒｅＧａｏＲｕｉ,ＪｉａｎｇＸｕａｎ,ＬｕＢａｏｇｕｏａｎｄＢａｎＬｉｚｈｉ(高瑞)(江轩)(吕保国)(班立志)(ＧｅｎｅｒａｌＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｆｏｒＮｏｎ－ｆｅｒｒｏｕｓＭｅｔａｌｓ,Ｂｅｉ...关键词:......
