Chinese-American Professor Behind Huawei-Backed Power Chip Wafer Maker Becomes Billionaire

Key Concepts

• Silicon Carbide (SiC) Epitaxial Wafers: Advanced semiconductor materials used for high-voltage, high-heat power switching.
• Epitaxy: The process of growing a thin, crystalline layer of material (silicon carbide) onto a substrate wafer.
• 8-inch Wafer Technology: The next-generation standard for semiconductor manufacturing, offering higher efficiency than the current 6-inch standard.
• Market Share: The percentage of total industry revenue controlled by a single entity.
• Supply Glut: An excess of supply in the market leading to downward price pressure and reduced profit margins.

1. Financial Milestone and IPO Details

Jiao Jian Wei, a 66-year-old Chinese American professor and founder of EpiWorld International, has achieved billionaire status following the company’s Hong Kong stock market debut.

• Market Valuation: EpiWorld’s shares rose 35% on their first day of trading, valuing the company at 43.8 billion HKD (~5.6 billion USD).
• Personal Wealth: Jiao holds a 27% stake in the company, resulting in an estimated net worth of 1.5 billion USD.
• Capital Raising: The IPO successfully raised 1.6 billion HKD, which the company plans to allocate toward expanding production capacity in China over the next five years.

2. Technical Specialization: Silicon Carbide (SiC)

EpiWorld specializes in the manufacturing of epitaxial wafers for silicon carbide chips.

• Functionality: SiC chips act as power switches, primarily utilized in electric vehicles (EVs) and AI data centers.
• Advantages: Compared to traditional silicon, SiC can withstand higher voltages and extreme temperatures, significantly reducing power loss. This enables faster EV charging and more efficient power delivery for AI infrastructure.
• Innovation: EpiWorld claims to be the first company globally to achieve large-scale commercialization of 8-inch SiC epitaxial wafers, positioning them a generation ahead of the industry-standard 6-inch wafers.

3. Market Position and Competitive Landscape

According to data from China Insights Industry Consultancy, EpiWorld is the world’s largest SiC epitaxial wafer company by revenue.

• Market Share: As of 2024, EpiWorld holds a 29% market share, surpassing Resinac Holdings (26%).
• Key Clients: The company supplies major power chip manufacturers, including Germany’s Infineon Technologies and Japan’s ROHM Semiconductor.
• Strategic Backing: Pre-IPO investors include Hubble Technology (Huawei’s venture capital arm) and China Resources Microelectronics (a unit of the state-owned China Resources conglomerate).

4. Industry Challenges and Financial Performance

Despite its market leadership, EpiWorld has faced significant headwinds due to a supply glut in the semiconductor industry.

• Price War: Competition from firms like Resinac and Shanghai’s Invent Chip Technology has triggered a price war.
• Revenue and Profit Impact: In the first nine months of 2025, revenue dropped 34% year-on-year to 535 million yuan (77.4 million USD).
• Margin Compression: The average selling price of 8-inch wafers was nearly halved between December 2024 and September 2025. Consequently, net profit plunged 82% to 21.1 million yuan during that period.
• Geographic Distribution: Nearly two-thirds of sales are concentrated in Greater China, with 22% coming from South Korea and Japan, and the remainder from Europe and North America.

5. Leadership Profile

Jiao Jian Wei is a veteran scientist with deep academic and professional roots in the semiconductor field:

• Education: He holds a bachelor’s degree in physics from Xiamen University and a PhD in electrical and computer engineering from Carnegie Mellon University.
• Academic Role: He currently serves as a chair professor at the College of Physical Science and Technology at Xiamen University.

Synthesis and Conclusion

EpiWorld’s transition to a publicly traded company highlights the critical role of silicon carbide technology in the future of EVs and AI. While Jiao Jian Wei’s success underscores the massive growth potential of the Chinese semiconductor sector, the company’s recent financial performance serves as a cautionary tale regarding the volatility of the industry. The "price war" and subsequent profit decline demonstrate that even market leaders are susceptible to supply-demand imbalances. Moving forward, EpiWorld’s ability to maintain its lead in 8-inch wafer production will be the primary determinant of its long-term recovery and growth.