In the rapidly evolving semiconductor and optoelectronics industry, large-diameter substrates are becoming the mainstream trend. Recently, Guangdong Vastron Technology Co., Ltd, a professional sapphire substrate supplier, officially announced the successful mass production of 12 inch sapphire wafer, marking a significant breakthrough in large-size single crystal growth technology.
This milestone further strengthens the company’s position as a competitive 12-inch sapphire wafer manufacturer in the global market.

Stable Mass Production of 12 Inch Sapphire Wafer
Compared with 4-inch, 6-inch and 8-inch sapphire wafers, the production of a 12 inch sapphire wafer requires higher technical control in crystal growth, stress management, and precision polishing.
Through continuous R&D investment and process optimization, Guangdong Vastron Technology Co., Ltd has achieved:
- High-purity Al₂O₃ single crystal structure
- Low dislocation density
- Excellent TTV (Total Thickness Variation) control
- Optimized Bow and Warp performance
- High surface flatness and double-side polishing capability
- Strong batch-to-batch consistency
The company’s 12-inch sapphire wafer is suitable for high-end applications such as:
- LED epitaxial substrates
- Micro-LED and Mini-LED manufacturing
- Power semiconductor devices
- Optical window materials
- Advanced electronic substrates
With stable production capacity, Guangdong Vastron Technology Co., Ltd is now capable of supplying bulk orders globally.

High Quality Sapphire Wafer with Competitive Cost Advantage
While maintaining premium quality standards, Guangdong Vastron Technology Co., Ltd has optimized its production system to reduce manufacturing costs. Through improved thermal field design, upgraded crystal growth control, and streamlined polishing processes, the company successfully delivers high quality sapphire wafer at competitive price.
As an experienced sapphire wafer supplier, the company controls every production stage, including:
Crystal growth → Core drilling → Slicing → Grinding → Polishing → Cleaning → Inspection → Packaging
Strict quality inspection ensures that each 12 inch sapphire wafer meets semiconductor-grade standards.
This combination of high performance and low cost sapphire wafer supply provides customers with better yield rates and lower overall production costs.
Strengthening Global Sapphire Substrate Supply Chain
The mass production of 12 inch sapphire wafer represents not only a technical upgrade but also an important step in expanding large-size sapphire substrate supply capacity.
As global demand for larger wafers increases, Guangdong Vastron Technology Co., Ltd continues to expand production lines and improve yield rates to support semiconductor and optoelectronic manufacturers worldwide.
The company remains committed to becoming a reliable long-term 12-inch sapphire wafer manufacturer and sapphire substrate supplier.
About Guangdong Vastron Technology Co., Ltd
Guangdong Vastron Technology Co., Ltd specializes in the research, development, and manufacturing of sapphire wafers, quartz materials, and advanced ceramic components. With strong crystal growth technology and precision machining capability, the company provides customized sapphire solutions for semiconductor, LED, optical, and industrial applications.
