JCET Packaging Solution for Hall Sensors Strengthens the Safety of New Energy Vehicle

In recent years, new energy vehicles have gradually become the mainstream choice for travel. Ensuring the stable operation and safety performance improvement of new energy vehicles has become a critical challenge for the automotive industry. And the role of Hall sensors in new energy vehicles has been attracted more and more attention.

The market size of sensors is constantly expanding with the development of industries such as new energy vehicles. According to Yole's forecast, the size of the sensor market is expected to reach US$4.5 billion by 2027, with a compound growth rate of approximately 9% from 2021 to 2027.

Hall sensor refers to a sensor that relies on the Hall effect to achieve physical quantity conversion. It is primarily used for converting and isolating complex signals including AC, DC, and pulses.. Through the Hall effect principle, the converted signal can be collected by various acquisition devices such as DCS, AD, DSP, PLC, and secondary instruments., with the advantages of fast response time, wide current measurement range and high accuracy, strong overload capability, good linearity, and strong anti-interference ability.

In new energy vehicles, Hall sensors play an irreplaceable role. Compared with module-type current sensors, chip-type current sensors are greatly reduced in size and can be arranged flexibly. Because of its advantages of small size and flexible layout, it is currently mostly used in AC/DC conversion components including OBC, DCDC, etc. the components with a small current flow. In addition, since the current flows through the sensor itself, in addition to the sampling accuracy, the chip-shaped Hall current sensor also needs to have a strong packaging structure that can withstand voltage. In the electric drive system of new energy vehicles, Hall sensors monitor the three-phase current of the motor. This helps determine the operating status of the motor and effectively avoid motor stall, overload, and other faults.

The Hall sensor uses magnetic field sensing technology, and when driving in a high magnetic field environment, there may be deviations that affect the vehicle's driving accuracy. At the same time, the mutual influence between Hall sensors may also lead to inaccurate data. Therefore, chip design manufacturers need to collaborate with packaging manufacturers to select appropriate packaging technologies to improve electromagnetic isolation performance. 

JCET has currently collaborated with internationally renowned sensor companies of Hall sensors to develop flip-chip technology to produce excellent magnetic coupling effects in coreless packaging designs. The high-isolation current sensor solution series can provide accurate measurements with extremely low resistance. This type of packaging technology is suitable for reducing the PCB area occupied in sense resistor operational amplifiers or large current converter configurations, complying with the sensor miniaturization and demand trends of high heat dissipation of new energy vehicles.

 JCET currently has mature SOP, TSOT, TO, SIP and QFN packaging technologies suitable for Hall sensor applications. Related records have achieved large-scale mass production for automotive-grade applications and shipped billions of finished original parts, demonstrating a high level of research and development capabilities and technological maturity. While continuously enriching packaging types, JCET is also committed to improving the reliability level and cost optimization solutions of mature packaging products. The company's packaging products have reached Automotive AEC Grade 1 and Grade 0 standards.

 As the world's leading integrated circuit packaging and testing company, JCET has rich experience in technology research and development and customer engineering. As a key vehicle-mounted sensor, new energy vehicle Hall sensors play an important role in ensuring the safe, efficient, and stable operation of new energy vehicles. JCET looks forward to in-depth cooperation with customers in the automotive electronics field on sensor-related products achieve win-win with global customers.