Citizen Finedevice Co.,Ltd Official site

AuSn solder joint for automotive ECU with dissimilar materials.

Hybrid material joining technology that achieves miniaturization and high reliability of ECUs.

In the automotive industry, particularly in Electronic Control Units (ECUs), there is a demand for miniaturization, high performance, and high reliability. Since ECUs are used in harsh environments, bonding technologies that excel in heat resistance, vibration resistance, and chemical resistance are essential. Poor bonding between dissimilar materials can lead to a decline in ECU performance or failure. Our AuSn solder bonding technology applies the sealing technology used in Citizen Watch's crystal devices to address these challenges. 【Application Scenarios】 - ECU substrates - In-vehicle sensors - Electronic control components 【Benefits of Implementation】 - Miniaturization and weight reduction of ECUs - Assurance of high reliability - Stable operation in harsh environments

Related Link - https://cfd.citizen.co.jp/junction/

basic information

**Features** - Strong chemical and water resistance (e.g., sodium hypochlorite) - Capable of handling low to high vacuum ranges - Possible to bond dissimilar materials (glass, metal, ceramics, silicon) **Our Strengths** Citizen Fine Device leverages the technology cultivated over many years in the field of functional components that require small size, precision, and high detail to provide optimal solutions for our customers. Through a consistent production line from process design to machining, assembly, and functional testing, along with the unique development of our own processing machines, we deliver high-quality products.

Price range

Delivery Time

Applications/Examples of results

Glass-metal, ceramics-metal, ceramics-silicon, ceramics-glass, we do not limit applications. Please feel free to contact us.

Implementation and sealing of joints

TECHNICAL

Optimization of sealing conditions

TECHNICAL

Recommended products

Distributors

The area where Citizen Fine Devices demonstrates its strength is in the realm of functional components that require small size, precision, high accuracy, and high detail. We believe that our mission is to continue providing high-value-added microdevice products by leveraging the unique technologies we have developed over many years. Utilizing metal processing technology rooted in watch manufacturing, we have consistently supplied small, high-precision components to our customers for many years through a fully integrated production line that encompasses process design, machining, assembly, and functional testing, along with the unique development of our own processing machines. Additionally, mass-producing components with high precision and efficiency using brittle materials is also one of our core technologies. By integrating material technology with ultra-precision machining, thin-film technology, and bonding technology, we produce not only high-precision components such as ceramics and quartz but also high-quality functional device products like liquid crystal devices and sensing devices. Continuing to provide high-value-added products to the market is a significant dream for our employees. We will contribute to the creation of new value through manufacturing driven by the challenge spirit of each individual, working towards the realization of that dream.