![]() ![]() This article will introduce three important aspects in the preparation process of high-frequency ultrasonic transducers. Therefore, the preparation of UHF ultrasonic transducers is extremely important. Moreover, acoustic tweezers ( Supplementary Figure S1) based on ultra-high frequency ultrasound transducers ( Chen et al., 2017 Lim and Shung, 2017) can be used for the manipulation of very small particles, and have great application value in single-cell research and micro-assembly. SAM ( Makra et al., 2020)is widely used in non-destructive testing, biological microstructure imaging ( Fei et al., 2016 Zhang et al., 2017), and biological cell research ( Weiss et al., 2007). The UHF ultrasonic transducer can emit ultra-small wavelength ultrasonic waves because of its extremely high center frequency, which makes it a core component in the high-resolution imaging equipment- Scanning Acoustic Microscope (SAM) ( Supplementary Figure S1). When it is greater than 100 MHz, it is usually collectively referred to as UHF. Up to 100 MHz, medical high-frequency ultrasound is roughly distributed in this frequency range. In 1–10 MHz, the ultrasonic transducer of this frequency band is usually used in the field of large-size parts non-destructive testing. KHz-level ultrasound is generally used for large-scale and long-distance detection, like underwater sonar. Ultrasonic transducers excited by different working frequencies can emit ultrasonic waves of different frequencies. Provides a summary of the current research status, and puts forward some views on the future development of UHF ultrasound devices.Īs an energy conversion device, the ultrasonic transducer can convert electrical energy into sound energy. This article will focus on the topic of ultrahigh-frequency ultrasonic transducers’ preparation, and reviews three aspects: material selection, focus design, and acoustic energy transmission matching. In these fields ultrahigh-frequency (UHF) ultrasonic transducers play a critical role in the performance of related equipment. The ultrahigh-frequency (UHF) ultrasonic transducers are active in various fields, including nondestructive evaluation in the semiconductor industry, microscopic biological organization imaging in biomedicine, particle manipulation, and so on. 3School of Xi’an Jiaotong University, Xian, China.2School of Equipment Management and Support, University of People’s Armed Police, Xi’an, China.1School of Microelectronics, Xidian University, Xian, China.Jun Chen 1 Chunlong Fei 1* Danmei Lin 1 Pengkai Gao 1 Junshan Zhang 2 Yi Quan 3 Dongdong Chen 1 Di Li 1 YinTang Yang 1 ![]()
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