PCB Inspection Redefined: Continuity Testing for
Bare PCBs and Functional Testing for Assembled PCBs
Within the Seiken Group, IMI (I.M.I. Co.,Ltd.) specializes in PCB Inspection and delivers testing solutions designed around each customer’s unique requirements.
In this case study, we introduce IMI’s approach to creating customized fixtures for Continuity Testing of bare PCBs and Functional Testing of Assembled PCBs.
Customer Challenges / Request
Customers came to us with three key needs:
- Fixtures compatible with Continuity Testing for bare PCBs
- Reliable solutions for Functional Testing of Assembled PCBs
- A partner who could understand their requirements and turn them into practical, real-world solutions
Our Solution
① Continuity Testing for Bare PCBs
For bare PCB inspection, we provide optimized fixture proposals based on Gerber data and tester specifications. Using this information, we design the most efficient pin layout to support accurate and stable PCB Inspection. We support a wide range of PCB types, including FR-4 (glass epoxy) boards and Flexible PCBs.
Pin layouts are carefully reviewed in advance to ensure they meet each customer’s inspection standards, production process, and workflow.
② Functional Testing for Assembled PCBs
For assembled PCB testing, we offer complete fixture solutions based on PCB design data, contact point information, and circuit diagrams. In addition to fixture design and manufacturing, we can also provide Hand Press Machines and integrated wiring systems tailored to your testing environment.
This allows us to deliver fully customized solutions for Functional Testing of Assembled PCBs, from prototype development to mass production.
Results & Benefits
① Bare PCB Inspection
- Shorter lead times and lower costs compared with conventional fixture manufacturers.
- Close collaboration with Seiken, a probe manufacturer, for easier probe selection and consultation.
- Cost reduction solutions for fixtures requiring fine-pitch probes, supported by our technical expertise.
② Assembled PCB Testing
- Flexible press machine options, from manual Hand Press Machines to air-cylinder-driven systems.
- Suitable for everything from one-off prototyping to mass production.
- Flexible wiring design for complex functional test fixtures, including:
- Integration within the press machine housing.
- Separate external electrical control boxes.
Every design is tailored to match operational requirements and improve on-site usability.
Application
- IMI’s PCB Inspection solutions support a wide range of industries, including: Industrial equipment, Consumer electronics and Other electronic manufacturing fields. Our solutions are suitable for both Bare PCBs and Assembled PCBs.
IMI is more than a fixture manufacturer. We are a testing solution partner that develops optimal systems based on your requirements and workflow. Our goal is to help you achieve high inspection accuracy, reliable Continuity Testing, and efficient Functional Testing, while also improving ease of use on the production line.
Contact Us Today
The Seiken Group provides a broad range of inspection and testing solutions, from semiconductor back-end and front-end chips to bare and assembled PCBs. Through collaboration with our group companies, we offer complete one-stop support for your testing needs.
From development and prototyping to mass production, we deliver solutions tailored to your environment and bring your ideas to life.
Please contact us through our website. IMI’s web page is currently available only in Japanese, but full customer support in English is available upon request.
