2025: A Pivotal Year for SiC as Industry Transitions to 8-Inch Wafers
As the silicon carbide (SiC) industry enters a critical development phase in 2025, the shift toward 8-inch wafer production is accelerating. This transformation is fueling increased demand for high-precision semiconductor equipment. Following the successful delivery of 30 sets of SiC epitaxy equipment by CETC (China Electronics Technology Group Corporation), another major development has emerged—Zhongdao Optoelectronics has secured repeat orders from a leading SiC customer for its advanced defect detection systems.
Recently, Zhongdao Optoelectronics' NanoPro-150 wafer defect inspection tool received repeat orders from another top-tier SiC manufacturer in China. In January, the same equipment was ordered again by a major domestic semiconductor company.
The company emphasized that it will increase R&D investment in SiC wafer inspection technology by enhancing:
High-precision multi-mode defect detection
AI-driven defect classification algorithms
Overall equipment performance optimization
These advancements aim to significantly improve the quality and yield rates of SiC wafer production.
Challenges in SiC Wafer Inspection
SiC has become a key material in semiconductor applications, offering advantages such as:
- Wide bandgap
- High breakdown voltage
- Superior thermal conductivity
- High electron saturation velocity
These properties make SiC ideal for high-power, high-frequency applications in sectors such as electric vehicles (EVs), renewable energy, and 5G communications.
However, SiC wafer manufacturing presents significant challenges due to its complex material properties:
- Defect Sensitivity: Any micro-level defect can severely impact device performance.
- Unique Material Properties: SiC differs from traditional silicon, requiring advanced detection methods.
- High-Precision Requirements: Detecting nano-scale defects with high accuracy is extremely challenging.
- Multi-Layer Structure Complexity: SiC wafers have layered structures, complicating defect analysis.
- Cost Considerations: Given SiC wafers' high production costs, inspection must be both accurate and efficient.
Fierce Competition in the SiC Market
The global SiC industry is becoming increasingly competitive, with major players making strategic investments in wafer production, manufacturing equipment, and semiconductor devices.
Recent SiC Industry Developments
1. Bosch Invests in 8-Inch SiC Production in the U.S.
Bosch has reached an agreement with the U.S. Department of Commerce to invest $1.9 billion in converting its Roseville, California facility into an 8-inch SiC semiconductor plant.
2. Chongqing 8-Inch SiC Project Nears Completion
San’an Optoelectronics and STMicroelectronics' joint venture in Chongqing is expected to begin production by February 2025. The facility will integrate substrate, epitaxy, and chip fabrication for automotive-grade 8-inch SiC wafers.
3. Infineon Expands SiC Capacity in Malaysia
Infineon’s new factory in Kulim, Malaysia, focused on SiC production, is now operational.
Initial production is based on 6-inch wafers, with full transition to 8-inch wafers by 2027.
4. ChipLink to Scale 8-Inch SiC Mass Production
ChipLink Semiconductor plans to ramp up 8-inch SiC production in 2025.
Nansha Crystal is aiming to become China’s largest 8-inch SiC substrate supplier by reaching full production capacity in 2025.
SiC Industry Outlook: Market Growth and Future Developments
According to TrendForce, SiC's penetration rate in automotive, renewable energy, and high-power applications is accelerating. The SiC power device market is projected to reach $9.17 billion by 2028.
Key Trends Driving the SiC Market:
Increasing adoption of SiC in EVs, 5G infrastructure, and aerospace applications.
Growing demand for high-precision SiC inspection and manufacturing equipment.
Continued advancements in SiC crystal growth and wafer quality control.
As SiC demand surges, equipment manufacturers must enhance precision, improve efficiency, and reduce costs. In the crystal growth segment, the focus will be on producing larger, higher-quality SiC wafers while minimizing defects—a key breakthrough area for future industry advancements.
