Recently, Goertek Microelectronics Co., Ltd. (hereinafter referred to as “Goertek”) was invited to participate in the 31st Annual Meeting of the Society of Automotive Engineers of China to discuss the development potential and prospects of the automotive industry under the background of emerging technological innovation such as artificial intelligence technology.
Geely Micro showcased nearly 20 new automotive electronics products, including intelligent touch panels, in-vehicle A2B dual acoustic sensor array modules, and multiple car-grade microsystem modules independently developed and produced. Two business module leaders were invited to give speeches, covering topics such as the application and challenges of SiP technology in automotive electronics, and research on in-vehicle interaction based on piezoelectric touch feedback technology.
With the development of intelligent applications in the automotive market in recent years, GoerTek has launched a number of innovative solutions in the field of automotive electronics interaction touch, intelligent acoustics, and microsystem module integration, seizing the opportunity in the AI era based on its comprehensive layout in the MEMS sensor industry chain for many years and its experience in the consumer electronics field.
MEMS Acoustic Sensors: Intelligent Cabin Acoustic Solutions
MEMS acoustic sensors have become the core components of in-vehicle voice interaction systems, and their applications are not limited to this, but can also be used for noise reduction in the car. A large part of the interior noise of fuel vehicles comes from the engine, and most of the electric vehicles come from road noise and wind noise, and noise reduction has always been a major demand for automobiles. Goertek launched the “RNC accelerometer module”, which can be used for active road noise cancellation (RNC), fuel engine noise cancellation, chassis signal detection, etc., making the cockpit quieter and improving comfort. In automotive electronics, voice interaction, as an important way for smart cars to receive information and instructions, provides new development opportunities for MEMS acoustic sensors. Goertek is one of the representative enterprises in China’s MEMS sensor and microsystem module industry. According to Yole’s data, from 2020 to 2022, Goertek ranked 6th, 8th and 9th among global MEMS manufacturers, respectively, and was the only Chinese company among the top 10 global MEMS manufacturers, and the market share of MEMS acoustic sensors continued to rank first in the world. At the 5th China MEMS Manufacturing Conference held in October this year, Goertek once again won the honor of “Top 10 MEMS in China” issued by the MEMS Branch of China Semiconductor Industry Association.
The intelligence of the intelligent cabin includes meeting the personalized needs of different passengers in different positions, such as accurately recognizing the voice commands of rear passengers and adjusting only the rear volume/air conditioning, etc. GoerTek’s ‘In-car A2B dual acoustic sensor array module’ improves traditional technology and can be used for high-performance in-car multi-sound zone voice interaction, enhancing driving and riding intelligence, and meeting convenience and safety requirements. The ‘voice enhancement array acoustic sensor module’ can not only be used for in-car multi-sound zone voice interaction, but also achieve external directional voice recognition, enhancing convenience.
In the future, GoerTek Micro will provide a one-stop system solution, further enhancing the front-end acoustic processing capabilities, and helping to improve the user experience of in-car and external voice interaction and noise reduction.
Piezoelectric tactile technology: high-quality car touch control solution
With the acceleration of automotive intelligence, the requirements for in-car haptic interaction in terms of human-computer experience and appearance design are becoming higher and higher. How to design compact and delicate high-performance virtual buttons and explore more application scenarios has become a focus of industry attention.
Gowin Micro has been laying out piezoelectric materials since 2016, conducting research and development of piezoelectric devices in 2019, and providing a one-stop integrated solution of “material development + device design + module design + equipment development + software development” since 2022.
Nowadays, GoerTek applies piezoelectric technology innovation to touch feedback solutions in many car interior and exterior scenarios, such as central control buttons, steering wheel button assemblies, door handle buttons, roof light buttons, etc., to achieve surface beauty, clear and advanced touch, high reliability (supporting anti-misoperation, blind operation, etc.), and multi-functional interfaces and other terminal requirements.
Based on the characteristics of piezoelectric ceramics and system design capabilities, GoerTek has launched a series of innovative car interactive applications. For example, on the smart surface, piezoelectric ceramics can achieve precise touch sensing and delicate feedback force, making user operation more smooth and natural; the touch feedback of the center console enhances the intuitiveness and accuracy of interaction, enhances driving safety and convenience; the feedback of the vehicle door handle allows users to feel texture and technology when opening and closing the door; the ultrasonic dust removal system can effectively clean by utilizing the properties of piezoelectric ceramics, ensuring normal operation of equipment; the clear tactile feedback of the steering wheel button system helps the driver operate blindly and reduces distraction. Through an in-depth understanding of the characteristics of piezoelectric ceramics, GoerTek uses piezoelectric ceramics to make hidden buttons, with short touch response time, fast acceleration, flexible hand feel waveform adjustment, which can bring better sliding and pressing realism and feel.
SiP one-stop service: automotive electronics cost reduction and efficiency improvement solution
With the electrification of a large number of automotive components, and the emergence of functions such as ADAS, autonomous driving, active safety, the number of electronic control units (ECUs) in vehicles will increase significantly, and the industry has reached a consensus on the centralized development of electronic and electrical architecture.
SiP microsystem modules integrate MEMS chips, IC chips, passive components, and other devices, providing advantages such as reduced size, improved performance, lower power consumption, high reliability, and shortened development cycles for end products. They are very suitable for the needs of domain controllers under centralized trends. Leveraging the chip design, packaging, and testing capabilities established in the MEMS field, Orbotech has established a leading packaging and testing production line in the industry and can provide customized microsystem modules for intelligent terminals in multiple fields, providing a one-stop “design + packaging and testing” service.
Goertek’s “SiP Module-DCU Molding Solution (Vehicle Specification Domain Control)” has the advantages of module miniaturization and multi-functional integration, which can reduce the size of the motherboard by more than 50% and achieve cost reduction and efficiency increase.
With its various technological advantages, SiP technology will be widely applied and promoted in automotive electronic products. However, based on the risks and challenges brought by new technologies, it is necessary to establish a complete and strong process and capability for design, assembly, testing, and quality control in the product development process. Geir Micro has applied a brand-new packaging modeling and simulation technology, which can reduce the number of product development iterations, shorten the product development cycle, and provide customers with efficient and reliable SiP full-process services.
In the era of “AI + automobiles”, “innovation” shapes new development momentum
The application of AI relies on effective information input. If AI is considered as a person, sensors can be regarded as its eyes, ears, hands, and other senses. With the rapid development of artificial intelligence and metaverse, people’s interaction methods are brewing disruptive innovations. Interaction methods based on multidimensional sensory experiences such as voice, vision, and gestures are replacing traditional keyboard, mouse, and touch screen operations. MEMS sensors are the fundamental devices for realizing these interactions.
Automotive electronics is one of the earliest application areas of MEMS sensors, including vehicle anti-lock braking systems, electronic body stability programs, electronic control suspensions, electric handbrakes, etc. At present, the average car contains 10-30 MEMS sensors, and high-end cars even contain hundreds of MEMS sensors. With the promotion of AI technologies such as autonomous driving and intelligent cabins, the application scenarios of automotive MEMS sensors have become unprecedentedly rich, and the quantity is expected to break through to the next level. For Goertek, which has been deeply involved in MEMS for many years, “AI+automotive” is undoubtedly a great opportunity for development.
In addition, the performance of various sensors in the car depends not only on the chips, but also on the packaging and testing, which are important influencing factors. In the post-Moore era, SiP system-level packaging has become a key link for product miniaturization and performance improvement. GoerTek innovatively achieves the miniaturization design requirements of automotive electronic products through SiP technology.
Today, Goertek is one of the few MEMS companies with the one-stop overall solution capability of “chip + device + module + system + packaging + algorithm”, and has completed a comprehensive layout from MEMS devices, to sensor modules, to integrated intelligent interaction solutions, in order to grasp the new growth momentum brought by the automotive electronics track driven by AI technology to the company.
As a global leader in smart sensor interaction solutions, GoerTek focuses on technological innovation and technology-driven development. It is committed to serving global customers in the consumer electronics, automotive electronics, IoT, and industrial medical fields with innovative ideas and high-quality products, creating more healthy and beautiful products, and making unlimited efforts to contribute to better human perception, communication, and integration.
(Source: Time Weekly)
Source: Oriental Fortune Net
Author: Time Weekly
