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Electrical Tests

Automated in-line electrical testing enabling precise measurements of complex electronic components.

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Fail-safe testing systems

Our system delivers real-time measurements of all relevant electrical parameters, offering detailed insights into each product tested. With fail-safe design, products are continuously protected - tests can be disengaged instantly if parameters become critical. We offer versatile control test solutions for digital or analogue signals, with the flexibility to accommodate diverse product programming needs during electrical testing.
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Micro-contacting precision

With microscopic precision, we ensure flawless contact between test probes and circuitry, guaranteeing accurate measurements even in the most intricate electronic components. Our testing setup includes an integrated camera system that identifies contacting surfaces on connectors and corrects any offsets on the product. This level of precision enhances product quality and reliability, making it an indispensable aspect of our testing solutions.
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Tailored testing solutions

We seamlessly incorporate precise electrical tests mandated by requested standards and product specifications. Leveraging the compatibility with existing automation systems, we execute a spectrum of tests, from IQC to final assessments, with unparalleled accuracy and efficiency. With our tailored integration, you can trust the reliability and performance of every component, setting new standards of excellence in your industry.
Continental
Forvia
Hella
Kyocera

High-accuracy micro contacting with integrated vision systems

In our electrical testing process, achieving precise micro contacting is paramount. We ensure flawless connection between test probes and circuitry, enabling accurate measurements even for intricate electronic components. This precision significantly boosts product quality and reliability, making it a cornerstone of our testing solutions.

Our testing setup is equipped with an integrated camera system that precisely identifies contacting surfaces on the connector and corrects any offsets on printed circuit boards. Before contact, a servo mechanism adjusts the position of the contacting head, ensuring seamless engagement with fine structures and small test point distances, as small as 0.5mm.

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High precision pin detection
and alignment

This versatile system accommodates various connector types, from flexible PCBs to HSD, using floating contact heads with mechanical guides for precise connections. Alternatively, our high-resolution vision system accurately detects connection pin positions and aligns the contacting head accordingly. It operates on high precision servo-driven actuators, allowing us to achieve contacting pitches as low as 0.5mm using probes with a tip diameter of only 0.27mm.

When it comes to contacting, rigid needles are deflected from the test point to the spring probes of the grid. Upon applying pressure, the needles align atop the substrate and exert a contacting force.

Fully customized contacting systems for any specification

The adapter can comprise different types of rigid needles and spring probes, chosen based on pitch, current load, and desired contacting force. Thicker rigid needles are favoured for stability and durability. Adapters are custom manufactured to meet customer specifications, with the feasibility matrix determining compatible spring probe and rigid needle combinations.

Our testing solutions offer both single-sided and double-sided contacting configurations. Substrates undergo optical measurement before contacting, ensuring precision with fine-pitch adapters in a specialized unit. Our handling setup, including interface components, is tailored to individual customer specifications, accommodating a wide range of materials, from thin films to thick multilayer products.

Each adapter is fully customized and optimized for its intended product. We offer a diverse range of systems, from small manual test setups to large, fully automatic machines. Our parts handling employs advanced robotics to ensure precise positioning, complemented by sophisticated camera systems for optimal performance.

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Precision contacting with
mastered tolerances

Achieving accurate contact with 40μm test points relies on mastering adapter tolerances and manufacturing processes. The precision of drilling machines directly impacts the accuracy of adapters, requiring clean and straight guide holes during drilling. Adapters, manufactured at 23°C to 25°C, expand with corresponding material constants when used in warmer environments. This expansion is accounted for by scaling them accordingly during production.

To reduce lateral play, the sizes of needle holes in the adapter are carefully selected. Larger test points are necessary for assembled substrates since rigid needles extend farther, ensuring proper contact. A slight off-centre position of the rigid needle tip leads to minimal tolerance, which is further exaggerated by the deflected needle, positioned farthest from the centre of the borehole. It is crucial to carefully monitor the distance between the adapter and substrate to avoid any sideways misalignment of the highly flexed rigid needles on the substrate.

Versatile test adapters with multiple
rigid needle lengths

Our electrical test adapters can include versatile configurations for various testing needs, including integration of optical elements, hot testing capabilities, multiple rigid needle lengths to accommodate substrate height differences, direct contacting of components or connectors, and fine-pitch connector options for contacting.

  • Optical fibres within the interface adapter enable optical element control, with light signals converted to electrical values for transmission to the measuring system.
  • Hot testing considers material expansion for consistent performance across different temperatures, with recommended test point adjustments.
  • Different rigid needle lengths ensure optimal contacting force on all test points, while direct component contacting offers an alternative to test points, although it may temporarily close soldering points.
  • Contacting to connectors involves passing the adapter through fine-pitch connectors or tapping pins laterally, providing flexibility in testing procedures.

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Related Solutions

Frequently Asked Questions

Yes, INEA can integrate requested internal procedures or equipment. We can also provide a complete solution – from mechanical design, built, inspection equipment, as well as a complete automation and intelligence layer.
Yes. We seamlessly integrate precise electrical tests aligned with requested standards and product specifications. Utilizing the compatibility with current automation systems, we conduct a range of tests, from incoming quality testing (IQC) ICT to final assessments, with unmatched accuracy and efficiency. Our customized integration ensures the reliability and performance of every component, establishing new benchmarks of excellence in your industry.

The accuracy of electrical test is determined by the accuracy of test equipment used. In an industrial environment equipment is typically used with precision of mV, mA, ohm... If more precise measurements are required, special environment and equipment is implemented.

Our system provides real-time measurement of various electrical parameters including voltage, current, resistance, continuity, frequency, capacitance, inductance, and more. These measurements are crucial for monitoring the performance and integrity of electronic components during operation. Real-time monitoring allows for immediate detection of any anomalies or deviations from desired values, enabling prompt corrective actions to maintain optimal performance and prevent potential issues or failures.

Utilizing our integrated camera system, we accurately identify contacting surfaces on the connector and correct any offsets on printed circuit boards. Before contact, our servo mechanism meticulously adjusts the position of the contacting head, ensuring seamless engagement with fine structures and small test point distances as small as 0.5mm. Our adaptable system caters to various connector types, from flexible PCBs to HSD, employing floating contact heads with mechanical guides for precise connections.

Alternatively, our high-resolution vision system precisely detects connection pin positions and aligns the contacting head accordingly. Operated by high precision servo-driven actuators, we achieve contacting pitches as low as 0.5mm using probes with a tip diameter of only 0.27mm. During contacting, rigid needles are deflected from the test point to the spring probes of the grid, ensuring optimal alignment and applying a contacting force tailored to each specific spring probe.

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