[Case Study] Inspection of Large Circuit Boards for Communication Infrastructure and Servers

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TAKAYA APT Series

last updated：Dec 19, 2025

TAKAYA Corporation

Please utilize Takaya's flying probe tester for the inspection of large circuit boards for communication infrastructure and servers.

In large-scale board inspections for communication infrastructure and servers, jig-less inspection is particularly effective. Even with large board sizes, it can be handled efficiently, and this inspection method combines flexibility and precision, contributing to quality improvement and cost reduction. This significantly contributes to ensuring reliability in the fields of communication infrastructure and servers. 【Implementation Results】 - Established inspection technology tailored to the quality requirements specific to large boards. - Guaranteed the reliability of high-precision boards used in communication infrastructure devices and server products. 【Challenges Faced by Customers】 Handling of large boards: With jig-based testers, designing and manufacturing jigs for large boards is difficult. Due to weight and handling constraints, setup times are prolonged. Response to design changes: Large boards have many test points, and the cost of modifying jigs increases during design changes. The flexibility of the inspection process is low, making it unsuitable for low-volume, high-variety production. Cost and storage space: Jigs for large boards have high manufacturing costs and take up storage space. When operating multiple product lines, managing jigs becomes complicated.

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**Benefits of Introducing Flying Probe Testers** **Efficiency through Elimination of Fixtures:** By implementing fixture-free inspection, the need for fixture production and storage is eliminated even for large PCBs, resulting in cost reduction. Flexible inspection is possible regardless of PCB size. **Addressing Challenges Unique to Large PCBs:** Using equipment capable of extensive inspection allows for reliable testing across the entire surface of the PCB. Facilities specialized in handling large PCBs reduce setup time. **Visualization of Inspection Data and Traceability:** Inspection results are quantified for each component and inspection point, enabling detailed quality control. This makes it easier to identify defective areas, leading to improved quality. **Quick Turnaround:** Rapid inspection responses can be made for design changes and new products. This shortens the product launch period and meets the speed demands of the market.

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Applications/Examples of results

**Effects of Implementation** Strengthening Quality Control: By thoroughly inspecting the entire area of large substrates, we ensure long-term operation of the products. Efficient Operation: The inspection system for large substrates that does not require fixtures improves production efficiency. Cost Reduction: Reduces costs associated with the production and storage of fixtures, thereby controlling total costs. **Application Examples** Substrates for Communication Infrastructure Equipment: Inspection of large substrates such as routers, switches, and base stations. High-speed communication signal quality checks and evaluation of high current lines. Large Substrates for Servers: Reliability testing of high-performance server substrates for data centers. Quality assurance for substrates with power supply and high-density memory structures. Small-Batch, Diverse Production: Inspection of custom large substrates and special-purpose substrates (e.g., medical devices and industrial equipment).