Product Mar. 26, 2024

Testing AI and IoT LSI Inspection Equipment: New Flying Probe Tester for Probe Cards

Hioki E.E. Corporation is excited to unveil the FA1815-20 Flying Probe Tester(*1), a state-of-the-art solution designed to enhance the inspection of high-density circuit boards crucial for the IT market. This innovative tester is capable of inspecting up to 100 points per second, offering high probing precision and insulation resistance(*2) inspections of up to 100 GΩ at a test voltage of merely 10 V. By ensuring rapid and high-quality testing of probe cards(*3) and other high-density boards, the FA1815-20 is set to significantly boost productivity in the semiconductor industry.

  • *1:Flying probe tester: These are devices that inspects circuit boards by rapidly moving measurement probes to test circuits across the board. They offer the flexibility to inspect substrates with varied patterns by presetting the position information and measurement parameters.
  • *2:Insulation resistance: This is the resistance between circuit patterns on a board. Low insulation resistance can lead to malfunctions and failures in electronic products.
  • *3:Probe cards: These are jigs used in the semiconductor production process, especially for Large Scale Integration (LSI) chips, for verification. for verification. Their base substrate consists of finely pitched patterns.

FA1815-20 interior and high-density board to be inspected

Background of development

The rapid advancement of new IT technologies, including Artificial Intelligence (AI), the Internet of Things (IoT), and 5G networks, is pushing the limits of electronic products worldwide. As these technologies become increasingly integrated into society, the demand for failure-proof electronic products escalates. The core of these technologies, electronic circuits, are mounted on high-density boards that, due to advances in semiconductor technology, are becoming more complex and integrated. This trend necessitates more precise and comprehensive inspections to ensure reliability.

Innovating for the future

With remarkable progress in IT technology driving the semiconductor industry forward, reliability and productivity have become indispensable. Flying probe testers have long been the industry standard tool for PCB inspection. However, as inspection demands grow more stringent, the FA1815-20 emerges as the next-generation flying probe tester, ready to meet the challenges of precision and speed head-on. Moreover, this tester introduces an innovative approach to insulation resistance inspection that minimizes some cautious users’ concern about board damage with high-voltage testing in high-resistance inspections. This advancement represents Hioki's commitment to providing market-leading solutions that contribute to societal progress.

Flying Probe Tester FA1815-20

Key features of the FA1815-20

Unmatched probing precision

The FA1815-20 achieves a probing resolution with a minimum pitch of 34 µm between patterns and can inspect circuit test pads as small as 4 × 4 µm square. This precision is essential for today's increasingly fine circuit patterns.

Enhanced inspection speed

To address the challenges posed by the growing number of circuit patterns on high-density boards, the FA1815-20 has been equipped with updated mechanical hardware and a new probe movement algorithm. These improvements can reduce testing time by up to 30%(*4) compared to previous models, significantly enhancing productivity.

Eliminating concerns of damage to PCBs

Some cautious users may worry that high-voltage insulation resistance inspection may damage the PCBs. The FA1815-20's innovative head amp allows for inspections of up to 100 GΩ with at test voltage of only 10 V. This effectively eliminates concerns of damage to the boards in this inspection.

  • *4:Comparison in approx. 40,000 steps of continuity and insulation testing


  • Inspection of probe cards for GPUs in AI computation
  • Inspection of high-density substrates for 5G and IoT semiconductors
  • Inspection of substrates for smartphones, wearable devices, autonomous vehicles, and other high-performance electronics


The FA1815-20 Flying Probe Tester will be available starting March 26, 2024.



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  • Please note that prices, specifications, and other information contained in this texts are subject to change without notice.
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Established in 1935, HIOKI E.E. CORPORATION (TSE: 6866) has grown to become a world leader in providing consistent delivery of test and measuring instruments through advanced design, manufacturing, and sales and services. By offering over 200 main products characterized by safety and quality while meeting an expansive range of applications, we aim to contribute to the efficiency and value of our customers' work in research and development, production and electrical maintenance. Hioki products and services are available around the world through our extensive network of subsidiaries and distributors. For more information, visit us at