Technology & Innovation
Technological innovation at SFI is a key reason for maintaining a leading position in the electronic component market. Below are some of SFI’s core technological innovations:

Nanotechnology and Dual Doping Technology
Nanotechnology: SFI utilizes nanoscale manufacturing techniques to precisely control material structures, enhancing product performance and stability. Through nanoscale particle coating technology, SFI achieves higher current tolerance and lower leakage current, making it especially suitable for demanding electronic applications.
Dual Doping Technology: SFI employs trivalent and tetravalent ion doping, an innovative technique that significantly enhances the semiconductor properties of zinc oxide particles. This allows the products to achieve industry-leading performance in overvoltage protection and voltage stability.
Dual Doping Technology: SFI employs trivalent and tetravalent ion doping, an innovative technique that significantly enhances the semiconductor properties of zinc oxide particles. This allows the products to achieve industry-leading performance in overvoltage protection and voltage stability.

Low-Temperature Sintering Technology
SFI’s patented low-temperature sintering process (below 960°C) enables the use of pure silver electrodes, improving conductivity and stability while reducing energy consumption in manufacturing.

High α-value Material Development
SFI leverages innovative material science to develop varistor materials with a high α-value (nonlinear coefficient). These high α-value materials provide robust overvoltage protection while ensuring low leakage current and fast response time, making them ideal for high-performance applications.

Application of Positive Temperature Coefficient (PTC) Materials
SFI’s PTC materials maintain stability and low leakage current in high-temperature environments, making them well-suited for automotive and industrial control applications.

Eco-Friendly and Sustainable Material Application
By adopting pure silver electrodes and ester-based slurry, SFI reduces environmental impact while enhancing energy efficiency and sustainability in production, aligning with global eco standards.

Precision Processing and Automated Production
In addition to material innovation, SFI utilizes automated production and precision processes to enhance consistency and efficiency, ensuring high reliability and cost-effective manufacturing.
Technological innovation is key to SFI’s competitive edge, enabling it to lead the industry in overvoltage protection, electrical performance, sustainability, and reliability.