[Case Study] The Importance of Electrical Testing in EMS Companies

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TAKAYA APT Series

last updated：Apr 04, 2025

TAKAYA Corporation

Takahashi's flying probe tester solves the challenges faced by EMS companies.

【Implementation Results for EMS Companies】 - By conducting electrical inspections from the prototype stage of the circuit board, we achieve quality assurance before mass production. - Early optimization of circuit board design and component selection contributes to the reduction of defects in later processes. 【Challenges Faced by Customers】 Cost of Recreating Jigs: With jig-based testers, it is necessary to recreate dedicated jigs every time there is a prototype or design change. Each design change requires modifications to the jigs, significantly increasing costs and time. Insufficient Response to Design Changes: Conventional inspection methods make it difficult to respond flexibly to design changes. There were instances where long lead times made rapid verification during the prototype stage challenging.

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**Benefits of Introducing Flying Probe Testers** Responsiveness to Specification Changes: By utilizing fixture-less testers, rapid responses to design changes are possible. This allows for a smooth progression from prototyping to mass production. High-Quality Manufacturing: By pursuing high quality from the prototyping stage, the defect rate during mass production can be reduced. The appropriateness of temperature management in solder printing and reflow processes can be verified. Cost Reduction: Reduces the costs and time associated with re-creating fixtures. By pre-checking and verifying mass production data, costs related to defects during mass production can be minimized. Mistake Prevention: Early detection of mistakes or wiring defects during the rework process when replacing components. Electrically verifies whether various profiles (temperature, electrical characteristics, etc.) in the prototyping and mass production processes conform to specifications.

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Applications/Examples of results

**Effects of Implementation** Rapid problem-solving during the prototype stage: Even when design or component changes occur, real-time electrical inspections are conducted to quickly identify issues. Stabilization of mass production processes: By confirming the compatibility of processes and components before mass production, the occurrence of defective products is prevented in advance. Improvement of customer satisfaction: By consistently supplying high-quality products, customer trust is gained. **Application Examples** After-sales service: Checking and reconfirming electrical characteristics during circuit board repairs.