Flying Probe Tester is a testing device used to test printed circuit boards (PCBs) and PCB assemblies (PCBAs). It uses multiple probes driven by motors to replace traditional needle beds, and makes electrical measurements by rapidly moving probes that make contact with the pins of the device to detect insulation and conductivity values of the circuit board, identify defects, and verify performance.

Working principle

The working principle of the flying needle inspection machine is to conduct contact electrical testing on the circuit board through a probe system. The probe "flies" on the circuit board, making electrical contact with specific test points, and is connected to drivers and sensors through a multi-channel transmission system and sensors to test components on the circuit board. When a component is being tested, other components will be shielded to avoid interference.

Application scenarios

The flying needle inspection machine is suitable for various scenarios, including:

Small batch and sample testing: Due to its flexibility and the absence of specialized fixtures, the flying needle inspection machine is particularly suitable for small batch production and sample testing, which can save testing costs and improve shipping efficiency.

High density, fine pitch, and multi-level PCB boards: With the development of PCB circuit boards towards high density, fine pitch, and multi-level, flying needle inspection machines can adapt to this change, detect electrical defects in a timely manner, and avoid cost waste.

Advantages and limitations

The advantages of the flying needle inspection machine include:

High flexibility: No need for specialized fixtures, suitable for PCB testing with different layouts.

Economical and efficient: suitable for small batch and sample testing, saving testing costs.

Strong adaptability: able to adapt to high-density, fine pitch, and multi-level PCB board testing.

However, the flying needle inspection machine also has its limitations:

Slow speed measurement: In mass production, the testing speed of the flying needle inspection machine is slow, which may result in higher testing costs.

Expensive equipment: The equipment price of the flying needle inspection machine is relatively high and not suitable for the economic requirements of large-scale production.

In summary, the flying needle inspection machine has important application value in the electronic manufacturing industry, especially in small-scale production and sample testing, but its applicability in large-scale production is limited.