Citizen Finedevice Co.,Ltd Product Lineup

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.

In the semiconductor packaging industry, the bonding technology of dissimilar materials has become important due to the miniaturization and high performance of products. In particular, reliable sealing is essential for the long-term performance maintenance of products. Conventional resin-based adhesives have faced challenges in chemical resistance and long-term reliability, but our AuSn solder sealing technology demonstrates excellent chemical resistance and stable sealing performance even in high vacuum environments, making it suitable for harsh usage conditions. The AuSn solder method using heat treatment allows for seamless sealing through uniform melting, achieving stable sealing joints. 【Application Scenarios】 - Sealing of semiconductor packages - Use in high vacuum environments - Environments requiring chemical resistance 【Benefits of Implementation】 - Ensuring high reliability - Extension of product lifespan - Contribution to miniaturization and high performance

In the medical device industry, as miniaturization and high precision progress, sensors that combine various materials are in demand. In particular, biocompatibility and durability are crucial, and strong bonding between dissimilar materials is essential. AuSn solder joints address these challenges and contribute to the reliability of medical devices. 【Application Scenarios】 - Medical sensors - Implantable devices - Diagnostic equipment 【Benefits of Implementation】 - Improved chemical and water resistance - Stability in high vacuum environments - Assurance of long-term reliability

In the aerospace industry, reducing the weight of aircraft is essential for improving fuel efficiency and reducing transportation costs. In particular, components used in harsh environments require high reliability and durability. It is important to achieve both lightweight and functionality by combining different materials. Our AuSn soldering technology enables the strong bonding of dissimilar materials such as glass, metal, and ceramics, allowing for the manufacturing of lightweight and highly durable components. 【Application Scenarios】 * Aircraft components * Space exploration vehicle components * Satellite components 【Benefits of Implementation】 * Improved fuel efficiency through weight reduction * Miniaturization and high precision of components * Stable performance in high vacuum environments

In automotive electrical components, durability and reliability are extremely important. Particularly in environments exposed to temperature changes and vibrations, the deterioration of joints between different materials can become a problem. AuSn solder joints provide excellent chemical resistance and stability in high vacuum environments, making them capable of withstanding harsh operating conditions. Our AuSn solder sealing technology enables the precise and robust joining of dissimilar materials, enhancing the long-term reliability of electrical components. 【Application Scenarios】 - Automotive electronic devices - Sensor components - ECU (Electronic Control Unit) 【Benefits of Implementation】 - Improved chemical and water resistance - Assurance of long-term reliability - Enhanced product performance

In the optical device industry, as miniaturization and high performance progress, there is a demand for technologies that can firmly bond different materials. In particular, the reliability of bonding optical components such as optical fibers and lenses with dissimilar materials like metals and ceramics is crucial. AuSn solder bonding achieves high chemical resistance and stability in high vacuum environments, contributing to long-term performance maintenance even under harsh conditions. 【Application Scenarios】 - Bonding optical fibers with metal components - Bonding lenses with ceramic substrates - Optical communication modules 【Benefits of Implementation】 - High reliability and long product lifespan - Adaptation to miniaturization and high-density mounting - Streamlining of manufacturing processes

In the solar cell industry, long-term reliability and high performance are required. Particularly for solar cells exposed to outdoor environments, it is important to prevent material degradation and maintain stable power generation performance. Poor bonding between dissimilar materials can shorten product lifespan. Our AuSn solder joint technology applies the sealing technology used in Citizen Watch's quartz devices to bond dissimilar materials with high precision and strength. 【Application Scenarios】 - Manufacturing of solar cell modules - Bonding of solar cell components using dissimilar materials - Solar cells used in harsh environments 【Benefits of Implementation】 - Improved long-term reliability due to high chemical and water resistance - Stable sealing performance under high vacuum conditions - Extended product lifespan

In the robotics industry, the durability and reliability of joints are crucial. In particular, joints that are prone to wear and external environmental influences require strong bonding between dissimilar materials. Deterioration of the joints can lead to malfunctioning of the robot and reduced lifespan. Our AuSn solder bonding technology applies the sealing technology used in Citizen Watch's quartz devices to bond dissimilar materials with high precision and strength. 【Application Scenarios】 - Joints of robotic arms - Bonding of sensor modules - Bonding of components in drive units 【Benefits of Implementation】 - Achieving high durability and reliability - Long-term stable operation - Usable in harsh environments

In the display industry, especially in touch panels, durable and reliable bonding technology is required. In touch panels exposed to temperature changes and external forces, the delamination and degradation of the bonding area significantly affect the product's performance. Our AuSn solder bonding technology achieves excellent chemical resistance and stability in high vacuum environments, making it capable of withstanding harsh usage conditions. 【Application Scenarios】 - Manufacturing of touch panels - Bonding of display components - Manufacturing of devices using dissimilar materials 【Benefits of Implementation】 - Achieving high reliability and durability - Improving product lifespan - Enhancing yield rate

In the wearable device industry, miniaturization is required alongside durability and reliability of products. Particularly for wearable devices used in diverse environments, strong bonding between dissimilar materials is crucial. Traditional adhesives have faced challenges in chemical resistance and long-term reliability, but our AuSn solder bonding technology achieves excellent chemical resistance and stability under high vacuum conditions, making it suitable for harsh usage conditions. It also provides stable bonding performance in miniaturized devices. 【Application Scenarios】 - Miniature wearable devices - High-precision sensors - Highly reliable electronic components 【Benefits of Implementation】 - Miniaturization of devices - Achievement of high reliability - Assurance of long product lifespan

In the measurement instrument industry, the reliability of components is crucial for enabling high-precision measurements. Especially in environments exposed to temperature changes and vibrations, the durability of joints between dissimilar materials is essential for maintaining product performance. Improper bonding can lead to measurement data errors and product failures. Our AuSn solder joints apply sealing technology used in Citizen Watch's quartz devices, allowing for high-precision and robust bonding of dissimilar materials. 【Application Scenarios】 - High-precision measuring instruments - Precision measuring devices - Analytical instruments 【Benefits of Implementation】 - Improved product reliability through high-precision bonding - Long-term performance maintenance due to chemical and water resistance - Stable performance in high vacuum environments

In the optical equipment industry, lenses are crucial components that significantly influence performance. The manufacturing of lenses requires the combination of different materials, and the bonding technology greatly affects the quality and reliability of the products. Particularly in environments exposed to temperature changes and vibrations, the durability of the bonded joints becomes essential. Our AuSn solder bonding technology firmly joins dissimilar materials such as glass, metal, and ceramics, ensuring the long-term reliability of optical lenses. 【Application Scenarios】 - Bonding lenses to metal frames - Bonding lenses to ceramic components - Sealing various optical components 【Benefits of Implementation】 - High chemical resistance and water resistance - Stable performance in high vacuum environments - Improved long-term reliability