Citizen Finedevice Co.,Ltd Product Lineup

Our company applies and develops the film formation and thin film processing technologies cultivated in the manufacturing of thin film magnetic heads (HDD, FDD) and optical prism components to create thin film electrodes, resistive films, and solder films tailored to substrates such as ceramic substrates, forming them into high-precision fine circuit patterns. We are also capable of patterning on three-dimensional surfaces and thick film Cu plating. Our customers use our products not only in Japan but also in various countries around the world, including Asia and Europe and the Americas. We will continue to develop new technologies in the future. ■ Standard substrate materials (thermal conductivity W/m·K) AlN (170~230) AlN/Cu (~270) SiC (~370) ■ Applications Laser diode (LD) mounting substrates Light-emitting diode (LED) mounting substrates Photodiode (PD) mounting substrates ■ Laser market applications Visible light semiconductor lasers Optical communication (FTTx, data centers, mobile base stations) Consumer industrial applications (sensors, LiDAR, laser processing, medical) Lighting (projectors, automotive headlights), etc.

Customers in the telecommunications industry have limited experience and knowledge regarding sub-mounts, which has led to an inability to engage in equal discussions. As a result, most specifications were determined based on proposals from manufacturers, leading to issues such as defects arising later. Our company provides detailed technical explanations and considerations for each of the customer's concerns and requests, allowing us to make proposals on the spot. As a result, we created a specification document and held follow-up meetings to ensure the customer fully understood it before finalizing and delivering the document, which led to very appreciative feedback from them. [Case Summary (Excerpt)] ■ Concerns about sub-mounts - Limited experience and knowledge regarding sub-mounts - Inability to engage in equal discussions with the sub-mount manufacturer found - Most specifications were determined based on proposals from the manufacturer, resulting in defects later on *For more details, please refer to the related links or feel free to contact us.

Here are some frequently asked questions about the "thin film circuit boards (carrier/submount)" that we handle. Starting with "What kind of metal is the metal thin film?" and including questions like "What is the composition of the solder? (types)" and "What kinds of films can be made with metals?" we provide answers to many inquiries. Feel free to use this information for product selection, and don't hesitate to contact us for more details. 【Excerpt of Questions】 ■ What kind of metal is the metal thin film? ■ What is the composition of the solder? (types) ■ What methods can be used for patterns? ■ What types of substrates can be prepared? ■ What kinds of equipment are available? *For more details, please refer to the related links or feel free to contact us.

In the semiconductor industry, as devices become more high-performance, substrates that allow for heat dissipation and high-density mounting are in demand. Particularly in the mounting of laser diodes and LEDs, fine circuit patterns and high thermal conductivity are crucial. Inappropriate substrates can lead to decreased device performance and shortened lifespan. Our thin-film circuit substrates apply film formation and thin-film processing technologies to achieve highly precise fine circuit patterns and excellent thermal conductivity. 【Application Scenes】 Laser Diode (LD) mounting substrates Light Emitting Diode (LED) mounting substrates Photodiode (PD) mounting substrates Optical communication (FTTx, data centers, mobile base stations) 【Benefits of Introduction】 Contributes to high performance of devices Achieves high reliability Contributes to miniaturization and high-density mounting of products

In the telecommunications industry, especially in areas where high-speed data transmission is required, it is important to minimize signal delay and noise. Thin-film circuit boards address these challenges with high-density wiring and excellent thermal conductivity. Our thin-film circuit boards are ideal for laser diode (LD) mounting substrates and optical communication applications. 【Usage Scenarios】 * Optical communication (FTTx, data centers, mobile base stations) 【Benefits of Implementation】 * Stabilization of high-speed data transmission * Improvement in signal quality * Enhanced product reliability

In the medical device industry, there is a demand for miniaturization and high-precision components. In particular, miniaturizing parts is a crucial challenge in order to pack many functions into limited space. Our thin-film circuit boards contribute to solving this challenge in the design of medical devices that require small, precise, and high-accuracy components. 【Application Scenes】 - Endoscopes - Portable diagnostic devices - Biometric sensors 【Benefits of Implementation】 - Miniaturization of devices - High-density mounting - High reliability

In the automotive industry, the reliability of electronic components is crucial for achieving both safety and durability. Particularly for electronic components used under temperature variations, vibrations, and harsh environments, the quality of the substrate significantly affects the product's performance and lifespan. Thin-film circuit substrates address these challenges with high-precision fine circuit patterns and excellent thermal conductivity, contributing to the high performance of vehicles. 【Application Scenarios】 - In-vehicle radar - In-vehicle LED - In-vehicle sensors 【Benefits of Implementation】 - Achieving high reliability - Extending product lifespan - Contributing to high performance

In the aerospace industry, reducing the weight of aircraft is essential for improving fuel efficiency and performance. Particularly for electronic devices used in outer space or harsh environments, there is a demand for high reliability and durability while being compact and lightweight. Thin-film circuit boards have been developed to meet these requirements. 【Application Scenarios】 - Electronic devices for aircraft and spacecraft - Satellite-mounted equipment - Drones 【Benefits of Implementation】 - Improved fuel efficiency through weight reduction - Effective use of space through miniaturization - Increased longevity of devices due to high reliability

In the IoT industry, miniaturization of devices and the extension of battery life have become important challenges. To achieve energy efficiency, efficient power utilization of components is essential. Our thin-film circuit boards support the development of energy-saving devices through high-precision fine circuit pattern formation technology. 【Usage Scenarios】 - Wearable devices - Smart sensors - IoT gateways 【Benefits of Implementation】 - Miniaturization of devices - Reduction of power consumption - Extension of battery life

In the wearable device industry, there is a demand for both miniaturization and high performance. In particular, high-density implementation technology is essential to pack many functions into a limited space. Thin-film circuit boards have been developed to address this challenge. Our thin-film circuit boards achieve high-density implementation through high-precision fine circuit pattern formation technology, contributing to the miniaturization and high performance of wearable devices. [Use Cases] - Smartwatches - VR/AR devices - Healthcare devices [Benefits of Implementation] - Miniaturization of devices - Enhanced performance - Improved reliability

In the robotics industry, advanced motion control and precise sensor information processing are required. Particularly, as robots become smaller and more high-performance, high-density mounting of circuit boards and high reliability are crucial. Thin-film circuit boards have been developed to meet these demands. 【Usage Scenarios】 - Robot arms requiring high-precision positioning control - Robots processing fine sensor information - Mobile robots that require miniaturization and lightweight design 【Benefits of Implementation】 - Miniaturization and lightweight design through high-density mounting - Performance improvement through high-precision circuit patterns - Increased longevity due to high reliability

In the energy industry, energy conservation and efficient power supply are required. In particular, high-performance electronic components are essential in fields such as solar power generation and energy storage systems. Thin-film circuit boards contribute to the miniaturization and high performance of devices in these systems, supporting improvements in energy efficiency. 【Usage Scenarios】 - Solar power generation systems - Energy storage systems - Power converters 【Benefits of Implementation】 - Enhanced device performance - Miniaturization of systems - Improved energy efficiency

In the high-frequency measurement instrument industry, accurate signal transmission and noise suppression are essential. Particularly in measurements within the high-frequency range, the dielectric properties of substrate materials and the precision of circuit patterns significantly influence the reliability of measurement results. Inadequate substrate or pattern design can lead to signal attenuation and reflection, hindering accurate measurements. Our thin-film circuit substrates contribute to the performance enhancement of high-frequency measurement instruments by using materials with high-precision fine circuit patterns and excellent thermal conductivity. 【Application Scenarios】 - High-frequency signal measurement - Testing of wireless communication devices - Development of radar systems - Evaluation of various sensors 【Benefits of Implementation】 - Improvement of high-frequency characteristics - Reduction of signal transmission loss - Enhanced noise resistance - Increased measurement accuracy

In the display industry, there is a constant demand for thinner and more functional products. In particular, space-saving and lightweight designs are crucial factors that influence product competitiveness. To achieve thinness, it is essential to reduce the thickness of the substrate while simultaneously ensuring high reliability and performance. Our thin-film circuit substrates utilize advanced thin-film processing technology to contribute to the thinning of displays. 【Usage Scenarios】 - Thin displays - High-density mounting substrates - High heat dissipation substrates 【Benefits of Implementation】 - Increased added value of products through thinning - Realization of high-precision circuit patterns - High reliability and durability