Citizen Finedevice Co.,Ltd List of Products and Services

Our company utilizes AuSn solder, developed through the sealing technology adopted in Citizen Watch's crystal devices, to enable the high-precision and robust joining of dissimilar materials. While sealing joints with resin-based adhesives faced challenges in chemical resistance and long-term reliability, our AuSn solder sealing technology not only offers excellent chemical resistance but also demonstrates stable sealing performance even in high vacuum environments, making it suitable for harsh operating conditions. The AuSn solder method, which involves heat treatment, allows for uniform melting and seamless sealing, achieving stable sealing joints. We flexibly apply precision machining techniques cultivated in the manufacturing of small components to achieve small and high-precision sealing joints of dissimilar materials. 【Features】 ■ Strong chemical and water resistance (e.g., sodium hypochlorite) ■ Compatible with low to high vacuum ranges ■ Capable of joining dissimilar materials (glass, metal, ceramics, silicon) *For details, please view the PDF data by downloading the catalog.