➀ Piezoelectric MEMS technology enables innovative applications such as miniature speakers;
➁ Demonstrates MEMS' potential in miniaturization and novel audio solutions;
➂ Highlights advancements in semiconductor materials for next-generation devices
Recent #Piezoelectric news in the semiconductor industry
➀ Same Sky’s Audio Group has expanded its piezoelectric elements product line with the introduction of the new CEB and CPT series. These ultra-compact components are designed for vibration detection and touch feedback applications, offering a versatile and reliable solution for various electronic devices.
➁ Key features include an ultra-low profile of 0.12 mm, externally driven design, various sizes, voltage options of 20 or 30 Vp-p, a wide temperature range (-30°C to 70°C), and a broad frequency range (600 Hz to 10,500 Hz).
➂ The new piezo elements are available immediately through the company’s distribution network, with pricing starting at $0.29 per unit for orders of 250 pieces.
➀ Researchers at Northeastern University in China have developed an H-shaped bionic robot that mimics a cheetah’s running motion using piezoelectric materials.
➁ The H-shaped bionic piezoelectric robot (H-BPR) features four legs connected by three piezoelectric beams, allowing it to mimic a cheetah’s gait through periodic leg movements.
➂ Experiments showed the robot could achieve a maximum velocity of 66.79 mm/s and a load capacity of 55 g, demonstrating potential for industrial applications and search-and-rescue missions.
➀ Researchers at the University of Waterloo have developed a wearable generator that harnesses body movements to charge devices like laptops and smartphones; ➁ The technology uses piezoelectric materials and is scalable for larger machines; ➂ The team aims to commercialize the generator for applications in aviation and medical devices.
➀ The study introduces a capillary effect-based sealing strategy to address air leakage and asynchronous vibration issues in piezoelectric MEMS speakers. ➁ This method uses PDMS liquid to autonomously seal the narrow gaps in the speaker structure, improving low-frequency and resonant frequency sound pressure levels. ➂ The sealed speakers showed a 4.9 dB increase in sound pressure level at 20 Hz and a 17.5 dB improvement around the resonant frequency, with minimal impact on other frequency performance.