Technology development trend of China's new energy vehicle power semiconductor industry

In recent years, with the vigorous development of the global new energy vehicle market, China, as a major producer and consumer of new energy vehicles, has also ushered in unprecedented development opportunities for its power semiconductor industry technology. As the core component of the power electronics system of new energy vehicles, power semiconductors play a vital role in power conversion and control. This article will deeply explore the technological development direction of China's new energy vehicle power semiconductor industry, and analyze its current status, challenges and future trends.

## 1. Industry Status

China's new energy vehicle power semiconductor industry has made significant progress in recent years. With the rapid growth of the new energy vehicle market, the demand for power semiconductors has increased sharply, especially in the electronic control system of electric vehicles, IGBT (Insulated Gate Bipolar Transistor) and MOSFET (Metal Oxide Semiconductor Field Effect Transistor), etc. The demand for power devices is particularly strong. According to data, China's new energy vehicle power semiconductor market will continue to expand by 2024, and the market size is expected to reach 19.301 billion yuan by 2025, with a growth rate of 48.8%.

In terms of the industrial chain, China's new energy vehicle power semiconductor industry has formed a relatively complete upstream and downstream system. The upstream mainly includes raw materials such as silicon wafers and various semiconductor equipment required for the manufacture of power semiconductors; the midstream is the product manufacturing stage, covering a variety of products such as diodes, transistors, thyristors, AC/DC converters, DC/DC converters, etc.; the downstream is widely used in new energy vehicles, photovoltaic industry, industrial control, smart grid and other fields.

## 2. Technical Challenges

Although China's new energy vehicle power semiconductor industry has made significant progress, it still faces many technical challenges. First of all, the technical threshold is high, especially in the field of high-end power devices such as IGBTs. Foreign companies occupy a leading position in core technologies, while domestic companies lag behind international giants in terms of technological innovation, product quality and brand influence. Secondly, production capacity bottlenecks limit the development of the industry. The rapid growth of the new energy vehicle market has caused a sharp increase in demand for power semiconductors. However, the international power semiconductor giants are cautious about expanding production, resulting in a supply cycle of 8 to 12 months, which has given new energy Automakers are in great trouble. In addition, material dependence and cost issues are also one of the bottlenecks in the development of the industry. New energy vehicle power semiconductors mainly rely on high-performance materials such as SiC, and the production technology and market supply of these materials are mainly in the hands of international giants, causing domestic companies to face greater challenges. material dependence and cost pressure.

## 3. Technological innovation and breakthroughs

Faced with technological challenges, China's new energy vehicle power semiconductor industry is accelerating technological innovation and breakthroughs. On the one hand, domestic companies have increased their investment in research and development to improve product performance and quality through technological innovation. For example, by benchmarking the latest technologies and processes of international leading power semiconductor companies, Xinhuarui Semiconductor has launched a seventh-generation 1.6um pitch micro-groove process IGBT chip, and has launched a frame glue filling module and S-PACK packaging module in terms of modules, which are fully compatible with the existing Infineon HPD module interface and can be quickly replaced. On the other hand, domestic companies are also actively exploring the application of new materials, such as SiC (silicon carbide) power devices. SiC power devices perform better in terms of high voltage resistance, high current, high temperature resistance, high frequency, high power and low loss, and are an important development direction for power semiconductors for new energy vehicles in the future.

## 4. Policy support and market prospects

The Chinese government has attached great importance to and strongly supported the development of the power semiconductor industry for new energy vehicles. The government regards it as an important engine for achieving the goals of "carbon peak" and "carbon neutrality", and has introduced a series of preferential policies to encourage local companies to accelerate technological innovation and industrial upgrading, thereby enhancing the self-sufficiency of power semiconductors. In addition, the policy also encourages companies to increase R&D investment and improve product performance and quality through technological innovation, while supporting small and medium-sized enterprises to become an important pillar of the industry through professional, refined and characteristic development strategies.

Looking ahead, China's new energy vehicle power semiconductor industry will usher in a broader development prospect. With the continued growth of global demand for new energy vehicles and the vigorous development of emerging fields such as smart grids, wind power generation, and photovoltaic power generation, the application prospects of power semiconductors will become more and more extensive. As the world's largest power semiconductor consumer, China is accelerating the process of domestic substitution through the rise of local companies and technological innovation, and its domestic market share will steadily increase. Especially in the fields of new energy vehicles and smart grids, domestic power semiconductor products are expected to gradually replace imported products and become the market leader.

## 5. Conclusion

China's new energy vehicle power semiconductor industry is in a stage of rapid development and accelerated domestic substitution, with the market size expanding rapidly and local companies rising rapidly. Faced with technical challenges and production capacity bottlenecks, domestic companies are constantly improving their own strength through technological innovation and industrial upgrading, and gradually narrowing the gap with international advanced levels. With the support of government policies, China's new energy vehicle power semiconductor industry is in a stage of rapid development and accelerated domestic substitution, with the market size expanding rapidly and local companies rising rapidly. Faced with technical challenges and production capacity bottlenecks, domestic companies are constantly improving their own strength through technological innovation and industrial upgrading, and gradually narrowing the gap with international advanced levels.