News & Events

This revision command includes the following 13 types of wireless network devices: 1. Handheld mobile phones on mobile phones; 2. Tablet tablets; 3. Digital cameras; 4. Headphones; 5. Headphones with microphone; 6. Handheld video game consoles; 7. Portable speakers; 8. E-readers, an e-book reader; 9. Computer keyboard keyboards

Why are wafers round?
Because the manufacturing process determines they are round. Purified high-purity polysilicon grows on a seed crystal by rotating. After the polysilicon is melted and placed in a quartz crucible, the seed crystal is placed in the crucible, rotated at a constant speed and pulled upward, then the molten silicon grows along the seed crystal into a cylindrical silicon ingot. This method is the CZ method (Czochralski) still in use today, also called the single crystal pulling method. As shown below:
 

Surge Protective Devices (SPD) are important devices used to protect electronic equipment from power surges or transient voltage effects. When we purchase SPD-related products, we find an important parameter behind their lightning protection capability discharge current KA —— 8/20us or 10/350us. What do these two parameters actually mean? Let's explore together.
 
1. Lightning Waveforms
8/20us and 10/350us both represent data on the time variation of impact pulse current, where 8/20us is a typical lightning breakdown of the ground (

On January 19th, the State Council Information Office held a press conference, where Vice Minister of Industry and Information Technology Xin Guobin reviewed the 2023 automobile production, sales, and export data, and shared industry expectations and progress for 2024. Vice Minister of Industry and Information Technology Xin Guobin stated that in 2023, China's automobile production and sales reached 30.161 million and 30.094 million respectively, with year-on-year growth of 11.6% and 12%, setting a new historical high and maintaining the world's top position for 15 consecutive years. After more than a decade of development, China's automobile production and sales have exceeded 30 million units, and the retail sales of automobiles have reached 4.86 trillion yuan, accounting for 10.3% of the total retail sales of consumer goods in society. The added value of industrial enterprises above designated size in the automobile manufacturing industry has increased by 13% year-on-year, making important contributions to the stable growth of China's economy. Among them, in terms of new energy vehicles, China's production and sales reached 9.587 million and 9.495 million units respectively in 2023, an increase of 35.8% and 37.9% year-on-year, and new car sales accounted for 31.6% of the total new car sales. In terms of China's automobile export data, 4.91 million vehicles were exported in 2023, a year-on-year increase of 57.9%, and it is expected to leap to the top of the world for the first time. Among them, 1.203 million new energy vehicles were exported, a year-on-year increase of 77.6%, providing diversified consumption choices for global consumers. Xin Guobin introduced that after conducting research at the beginning of the year, the Ministry of Industry and Information Technology believes that China's automobile industry production and sales can achieve stable growth in 2024, and new energy vehicles will continue to maintain a good development trend. It is expected to reach 31 million vehicles by 2024, with a slight year-on-year increase of about 3%. The production and sales of new energy vehicles will also reach a scale of about 11.5 million units, with a growth rate of approximately 20%. Of course, this is the data predicted by relevant enterprises and research institutions organized by the association, and the Ministry of Industry and Information Technology will further verify it. Next, the Ministry of Industry and Information Technology will conscientiously implement the work arrangements of the Central Economic Work Conference and the National New Industrialization Promotion Conference, and work with relevant departments to further strengthen macro guidance, enhance industry management, and promote high-quality development of the automotive industry. Firstly, it is necessary to implement preferential policies such as reducing or exempting vehicle purchase taxes, carry out pilot projects for comprehensive electrification of public sector vehicles and rural activities for new energy vehicles, actively expand the consumption of new energy vehicles, and maintain the stable operation of the industry. The second is to support enterprises to carry out joint innovation, increase technological breakthroughs in vehicle chips, all solid state batteries, high-level autonomous driving, and further enhance product market competitiveness. The third is to organize and carry out pilot projects for the admission of intelligent connected vehicles and the integration of vehicle, road, and cloud applications, accelerate the construction of infrastructure such as roadside perception and connected cloud control, further improve the standard system for vehicle, road, and network ends, and further promote the commercial application of intelligent connected vehicles. The fourth is to further strengthen the overall layout of industrial development, prevent and resolve the risk of overcapacity, and maintain a fair competition market order.

The automotive three electric systems refer to the three core components of electric vehicles, namely the motor, battery, and electronic control system. Together, they form the power system of electric vehicles, responsible for driving the vehicle.1. Analysis Explanation
Motor
The motor is the power source of electric vehicles, responsible for converting electrical energy into mechanical energy to drive the wheels. There are many types of motors, such as DC motors, AC asynchronous motors, permanent magnet synchronous motors, etc. Among them, permanent magnet synchronous motors are widely used in electric vehicles due to their high efficiency, high power density, and good speed regulation performance.

Electromagnetic Compatibility (EMC) Standards and Testing Content 
 


Internationally, the development of electromagnetic compatibility standards has a history of over 70 years. Initially, to protect radio communication and broadcasting, the International Special Committee on Radio Interference (CISPR) proposed relevant electromagnetic interference emission limits and measurement methods for various electrical equipment and systems. By the 1960s-1970s, due to the miniaturization, digitization, and low power consumption of electronic and electrical equipment, people began to consider the anti-interference capability of equipment. Major international standardization organizations and national government agencies...

After careful planning and preparation, Yint Electronics' brand-new English official website (https://www.yint-electronic.com/) has officially launched to better serve the continuously growing number of overseas customers. The upgrade and revision of Yint Electronics' English official website is a brand-new upgrade aimed at aligning with the company's "Going Global" strategy.

From 2019 to 2022, downstream demand for new energy vehicles, photovoltaics, semiconductors, and other industries continued to be strong. However, global wafer production capacity was insufficient, and the power semiconductor industry was in short supply, resulting in multiple price increases. IGBT, SiC MOSFET, and other products were in high demand. Since 2022, global production capacity has gradually been released, leading to a decline in the power semiconductor market. Supply and demand have reversed and prices have significantly decreased for MOSFETs, transistors, medium and low voltage MOSFETs, and high voltage MOSFETs; In addition, against the backdrop of the sluggish consumer electronics market, inventory depletion has become the main theme of the power semiconductor market in the past two years.

According to the latest data released by the General Administration of Customs of China, both the quantity and amount of imports and exports of integrated circuits (ICs) in China will decrease in 2023. It is worth noting that China is continuously increasing its local chip production to cope with long-term development in the future.