In the current era of rapid technological development, sensors, as key components for obtaining information, are changing people's lives and industrial patterns at an unprecedented speed. MEMS pressure sensors, with their advantages of high precision, low power consumption, and small size, are widely penetrated into many fields such as smart devices and industrial manufacturing, and their market size continues to expand.

At the ongoing Munich Shanghai Electronics Show, Zhaoyi Innovation (booth 701 in Hall N5) showcased a high-precision pressure sensor solution based on GDY1122 waterproof, which has a waterproof rating of 10ATM and excellent performance, suitable for precise pressure measurement in harsh environments. Zhaoyi Innovation has built a rich and differentiated portfolio of MEMS pressure sensor products with strong research and development capabilities, fully covering different market demands. The company continues to promote technological innovation, creating a comprehensive sensor technology platform matrix, and continuously breaking through technological bottlenecks and driving industry development trends through the implementation of the "3 highs, 1 low, and 1 optimization" strategy.

The new force of pressure sensing

MEMS pressure sensors are deeply integrated into various scenarios of modern life due to their significant advantages of high precision, low power consumption, and small size. In indoor environments, MEMS pressure sensors become invisible rulers for floor positioning, capable of capturing extremely subtle atmospheric pressure differences and achieving meter level height recognition in skyscrapers. In the field of 3D positioning, MEMS pressure sensors, GPS, and gyroscopes form a sensor matrix, effectively filling the vertical blind spots of traditional positioning technology. MEMS pressure sensors have also demonstrated unique application value in sports health monitoring. When climbers climb, the smart devices worn on their wrists can use their functions to quietly transform into pressure monitoring devices, predicting the risk of altitude sickness in advance; The smart wristband worn by swimming enthusiasts can also use this sensor to build an underwater safety alarm system.

According to regulations in countries such as Japan and the United States, mobile phones must have the ability to locate people at high altitudes in order to respond to emergency rescue situations. Therefore, MEMS pressure sensors have become a standard product for mobile phones. Moreover, this configuration is gradually being integrated into more products, including some children's watches.

In the field of MEMS pressure sensors, Zhaoyi Innovation Company already has a clear and forward-looking product portfolio. The GDY1121 ordinary barometer, as the main product for the mobile phone market, has successfully passed the E911 test. In terms of waterproof pressure gauge products, there are also multiple differentiated products on the product map of Zhaoyi Innovation. Among them, GDY1122 has successfully achieved mass production in products from internationally renowned manufacturers, demonstrating excellent market competitiveness. The product has waterproof capabilities at a depth of 100 meters underwater. GDY1124 is designed for the mid to low end wearable device market and supports 50 meter underwater waterproofing. The two chips maintain consistency in core performance, and the launch of GDY1124 aims to provide a more cost-effective solution for customers who are more cost sensitive and have lower waterproof requirements. These product solutions, whether pursuing ultimate performance in the high-end market or emphasizing cost-effectiveness in the mid to low-end market, can fully meet the diverse needs of different customers and application scenarios.

From energy-saving pioneer to waterproof powerhouse

The two products that Zhaoyi Innovation has already mass-produced fully demonstrate its innovative capabilities in the MEMS field. Among them, GDY1121 stands out with its outstanding energy efficiency performance, with a power consumption of only 3.5 μ A at a 1Hz sampling rate and a typical working mode current as low as 154 μ A, both lower than the industry average, making it the energy-saving benchmark for microsensors. This product is equipped with precise pressure capture technology, with an absolute accuracy of ± 0.5hPa, relative accuracy of ± 0.06hPa, and RMS noise as low as 0.1Pa. Combined with a 24 bit high-precision ADC, it can achieve sub pascal level data analysis capability, meeting the measurement needs in harsh environments.

Its intelligent data management architecture has a built-in 576 byte large capacity FIFO, supports flexible interrupt function, and directly outputs calibrated pressure values, eliminating the need for external MCU algorithm processing, significantly reducing system complexity and development cycle, and creating a plug and play sensing solution. In addition, GDY1121 integrates a high-sensitivity temperature sensor and has been successfully applied in high reliability scenarios such as three proof mobile phones. Through 48 hour stability testing (deviation<5.6Pa), its all-weather stability performance has been verified.

As an enhanced version of GDY1121, GDY1122 supports a waterproof rating of 10ATM, far ahead of similar products. Its packaging size is

Another outstanding feature of GDY1122 is its excellent waterproof packaging process. It adopts ceramic packaging to increase temperature stability and stress resistance. In terms of key waterproof adhesive, traditional products often use transparent adhesive on the outer layer. If directly exposed to sunlight, it will cause accuracy deviation. GDY1122 has undergone technological innovation to maintain data stability even under direct sunlight.

Thrust testing is a classic test that simulates the mechanical thrust (such as pressing or squeezing) experienced by sensors during installation or use, and verifies the anti deformation ability of micro mechanical structures. It can simulate scenarios such as the daily pressure that a barometer in wearable devices needs to withstand. The test result of GDY1122 shows that the packaging strength exceeds the specification of 3500g (measured to be 4000-5000g), which can meet the requirements of harsh environments.

The technical bottlenecks faced by MEMS sensors mainly focus on the high sensitivity of the device to stress and temperature. Due to the combined effects of the measured pressure, ambient temperature, and external pressure in practical applications, the absolute accuracy of the final measurement data is greatly affected. To ensure product performance, during the research and development process, Zhaoyi Innovation conducted rigorous and meticulous verification work on the external packaging of the product, minimizing the impact of external factors on the product.

Looking ahead to this year, Zhaoyi Innovation will also focus on launching a high-end pressure sensor product, which not only has accurate pressure measurement function, but also integrates advanced water depth measurement capability. The pressure measurement range of this product covers 300 to 1250hPa, which is equivalent to the standard atmospheric pressure range; The water pressure measurement can reach 300 to 4000hPa, supporting accurate detection at a depth of 30 meters underwater. This product will mainly be applied in the high-end market, providing ideal solutions for customers who pursue ultimate performance.

Building a Sensor Technology Platform Matrix

Zhaoyi Innovation's goal in the field of sensors is to deeply cultivate sensors, signal chains, algorithms, and solutions, and become an important contributor to the entire ecosystem. Around this goal, Zhaoyi Innovation has built four technology platforms in the Sensor business field: capacitive technology platform, spectral technology platform, MEMS technology platform, algorithm and solution. Each platform complements each other and can provide diversified and high-performance sensor products and solutions for different industries.

Capacitive technology platform: With self capacitance and mutual capacitance detection technology as the core, high-precision ADC and high signal-to-noise ratio AFE, signal chain are used to achieve accurate measurement and signal processing of capacitance changes. On the phone PC、 Tablet fingerprint recognition and various sizes of touch solutions play a key role in identifying fingerprint features or sensing touch operations by detecting changes in capacitance.

Spectral technology platform: focusing on optoelectronic related technologies, covering high-performance optoelectronic pixel design, capable of accurately sensing optical signals; Optical lens and micro lens design can optimize the transmission and focusing of light; Spectral color filter design, realizing the screening and processing of different spectra. By combining high-precision ADC, high signal-to-noise ratio AFE, and signal chain, optical signals can be efficiently converted into precise electrical signals and processed, which can be used in scenarios such as optoelectronic physiological index detection.

MEMS technology platform: Based on MEMS technology, sensor development is carried out, and advanced process platforms, high-precision ADCs, high signal-to-noise ratio AFEs, and signal chains are utilized to ensure the high precision and stability of sensors. The product is widely used in areas such as floor height detection, auxiliary positioning, mobile phone height and position navigation, and smart watch/wristband motion detection.

Algorithms and solution platform: develop high-performance algorithms for different sensors and application scenarios, such as high-performance, small area fingerprint algorithms, heart rate algorithms and other embedded fingerprint algorithms. We also provide customized application solutions for various industries, combining sensor data with actual application needs to enhance product practicality and functionality, and meet the application needs of multiple fields.

Through the "3 Highs, 1 Lows, and 1 Optimal" strategy ("3 Highs" refers to high integration, high precision, and high sensitivity; "1 Lows" refers to low power consumption; "1 Optimal" refers to the development of high-performance algorithms and industry application solutions), Zhaoyi Innovation is leading the innovation of MEMS sensor technology, which integrates multidimensional sensing and data processing through miniaturized integrated design, and relies on precision processes and intelligent algorithms to achieve stable measurement and high sensitivity in complex environments; Innovative low-power architecture significantly reduces energy consumption and supports long-term monitoring of mobile terminals; Build a full chain technology ecosystem, accelerate product implementation through pre-set algorithms, standardized calibration, and scenario based solutions.