Lead-Free Piezoelectric Transducers for Microelectronic Wirebonding Applications
Lead-Free Piezoelectric Transducers for Microelectronic Wirebonding Applications
Lead-free KNLNTS and BNKLBT piezoelectric ceramic rings have been successfully prepared and used as the driving elements for fabricating ultrasonic wirebonding transducers. In order to improve the energy transfer between different parts of the transducer, titanium alloy has been used to fabricate the front and back plates. The dimensions of the ceramic rings and the titanium alloy plates have been optimized to give an operation frequency of 65 kHz. Because of the better matching of the acoustic impedances, an effective transfer of vibration energy is achieved in the KNLNTS-Ti and BNKLBT-Ti transducers, leading to a large axial vibration (~1.7 ïm at 0.1 W). Probably attributed to the low planar electromechanical coupling coefficient k31 (0.26 and 0.188,
- Hong Kong Polytechnic University (香港理工大學) China (People's Republic of)
- Hong Kong Polytechnic University (香港理工大學) Hong Kong
- Hong Kong Polytechnic University China (People's Republic of)
Lead-free piezoelectric transducers
Lead-free piezoelectric transducers
selected citations These citations are derived from selected sources.This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).9 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
Citations provided by BIP!Popularity provided by BIP!