Custom Test Fixtures are at the heart of what we do at Forwessun. Whether you are looking to improve thermal management, increase throughput, or adapt your existing GenRad, Keysight, or Teradyne platform to meet evolving production demands, our tailored Test Fixtures are designed to deliver real, measurable results. This guide walks you through the customisation options we offer, who they are best suited for, and how to choose the right Test Fixtures for your production line.
Unleash Your PCB Testing Potential with Forwessun’s Custom Fixtures
Elevate your PCB production with Forwessun’s custom FCT and ICT fixture solutions! From advanced UUT cooling systems to precision auto-open gates, we optimise GenRad, Keysight, and Teradyne platforms for outstanding performance.
Our custom modifications deliver measurable improvements in testing accuracy, production capacity, and overall operational efficiency. Custom modifications refer to tailored adjustments or enhancements made to standard fixtures to optimise their performance.
Ready to upgrade your testing infrastructure? Read more below.
Forwessun’s Custom Test Fixture Solutions
In the fast-moving world of PCB manufacturing, precision and efficiency are key. At Forwessun, we know every production line has its own unique needs, which is why we offer a variety of ICT & FCT fixture customisations tailored to fit your specific requirements. Fixture customisation refers to the process of adapting or modifying testing fixtures to meet specific production needs, enhancing efficiency and accuracy.
Whether you’re working with GenRad, Keysight (HP3070), or Teradyne fixtures, our customisation options ensure your testing environment is optimised for maximum productivity and reliability.
Explore our comprehensive range of fixture customisations here: Forwessun Fixture Customisations.
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What design customisations are right for me?
No two production lines are the same, and neither are their testing requirements. Choosing the right design customisation options for your fixtures ensures they’re perfectly aligned with your needs, whether you’re looking to improve accuracy, output, or extend your equipment lifespan.
From dual-well test fixtures and MDA testing to advanced cooling systems, our customisations are designed to address real-world challenges our customers face and deliver measurable results. If your process relies on in-circuit test, the right fixture enhancements can make a significant difference to probe contact reliability, thermal stability, and overall test coverage.
Our experienced team of designers and engineers collaborate with you to understand your requirements and provide you with the best options to build the perfect testing solution.
UUT Cooling Functionality
Key Fixture Customisation Options
At Forwessun, we offer a variety of customisation options spanning both in-circuit and functional test applications. Whether you need to enhance thermal management, increase throughput, or ensure your functional test environment delivers consistent, repeatable results, our solutions are built around your specific production requirements. Here is a snippet of some of the options we provide:
1. Units Under Test (UUT) Cooling
Effective thermal management is crucial for maintaining fixture performance and longevity.
Forwessun’s custom UUT cooling solutions are designed to prevent overheating and ensure consistent, reliable testing results.
Whether you require active cooling (using fans or blowers) or passive cooling (via heat sinks or thermal pads), our systems are tailored to your specific requirements.
2. Zero Flex Board Support
Our Zero Flex Board Support solutions create a stable and supportive testing environment by eliminating board flex during the testing process.
This customisation limits stress on both the board and the fixture, ensuring precise and reliable results in high-precision applications.
By maintaining stability, our zero flex support systems improve test accuracy, reduce the risk of errors, and extend the lifespan of your equipment.
3. LED Testing
Forwessun’s LED testing solutions are engineered to meet the specific demands of LED-based PCBs, ensuring accurate and reliable results every time.
Our customisations include advanced testing protocols and precise measurement capabilities to verify brightness, colour consistency, and functionality.
Whether you’re testing single LEDs or complex arrays, our solutions are tailored to streamline your process, reduce testing time, and improve overall efficiency.
4. Dual Well Test Fixtures
Dual Well Test Fixtures are engineered to maximise efficiency in high-volume production environments.
By testing units in an asynchronous tandem, these fixtures significantly reduce the impact of handling time, allowing you to test two boards simultaneously.
This innovative approach not only speeds up the testing process but also increases throughput, making it ideal for busy manufacturing lines.
5. Auto Open/Close Gate Functions
The Auto Open/Close Gate Functions streamline your testing process by automating fixture operations, reducing manual intervention, and boosting efficiency.
Our auto-opening fixtures ensure quick and effortless board loading and unloading, while auto-closing fixtures securely lock the Unit Under Test (UUT) in place for accurate and reliable testing.
These customisations are designed to integrate seamlessly with your production line, minimising downtime and maximising overall productivity.
6. Sensor Testing
Testing sensors on printed circuit boards (PCBs) during In-Circuit Testing (ICT) is a crucial step in electronics manufacturing. It ensures each sensor is correctly installed, fully operational, and ready for use before the product leaves the production line.
Not sure which fixture customisations you need? Our engineers can review your requirements and recommend the best options.
Test Fixture Solutions for Genrad, Keysight, and Teradyne Fixtures
Whether you’re operating on Genrad, Keysight (HP3070), or Teradyne platforms, Forwessun has the expertise to tailor your fixtures to your precise requirements.
Our customisations are designed to integrate seamlessly with your existing equipment, ensuring reliability and optimal performance.
No matter the fixture type, our goal is to ensure your testing environment is as efficient and effective as possible.
Why Custom Fixture Modifications Matter
Modern PCBs are becoming smaller, denser, and more complex and standard fixtures often can’t keep up. Custom fixture modifications ensure your test environment is optimised for accuracy, repeatability, and long‑term reliability. Whether you’re dealing with thermal challenges, high node counts, LED‑based assemblies or multi‑variant products, tailored fixture enhancements help you maintain consistent test coverage while reducing operator workload and production bottlenecks.
Who Benefits Most from Custom Fixtures?
Customised ICT and FCT fixtures are ideal for:
- High‑volume manufacturers needing faster cycle times
- Automotive, aerospace and medical sectors requiring strict traceability
- LED‑based product manufacturers needing optical validation
- Industrial device makers with complex sensor arrays
- Companies scaling production and needing more robust test processes
- Teams with multiple PCB variants requiring automated configuration detection
Explore Our Fixture Customisation Options Today
Ready to take your production line to the next level? Visit our Fixture Customisations page to explore our full range of options and how they can benefit your business.
At Forwessun, we’re committed to helping you achieve excellence in PCB manufacturing and production.
Let us help you unlock the full potential of your fixtures with custom solutions designed for your success.
FAQs
What are custom test fixture solutions?
Custom test fixtures are engineered modifications or enhancements designed to improve the performance, accuracy and efficiency of your existing ICT or FCT test setup. At Forwessun, these solutions include UUT cooling, dual‑well fixtures, zero‑flex support, LED testing, auto‑open gates and more, all tailored to your specific production needs.
Which test platforms do Forwessun’s customisations support?
Our custom fixture solutions are compatible with GenRad, Keysight (HP3070), and Teradyne platforms. We also support legacy systems, ensuring long‑term reliability and continuity for mature production lines.
How do custom fixture modifications improve PCB testing efficiency?
Customisations such as dual‑well fixtures, automated gate functions and advanced cooling systems reduce handling time, prevent overheating, improve test coverage and streamline operator workflow. These enhancements lead to faster cycle times, higher throughput and more consistent results.
Can Forwessun help with high‑volume production environments?
Yes. Solutions like dual‑well test fixtures and auto‑open/close gates are specifically designed to increase throughput in high‑volume manufacturing. They minimise downtime, reduce manual intervention and allow operators to test multiple boards efficiently.
What is UUT cooling and why is it important?
UUT cooling prevents overheating during testing, which protects both the PCB and the fixture. Forwessun offers active cooling (fans, blowers) and passive cooling (heat sinks, thermal pads) to maintain stable temperatures and ensure consistent, reliable test results.
What is Zero Flex Board Support?
Zero Flex Board Support eliminates PCB flex during testing, ensuring stable probe contact and reducing mechanical stress on the board. This improves measurement accuracy, prevents false failures and extends the lifespan of both the PCB and the fixture.
Do you offer LED testing capabilities?
Yes. Our LED testing customisations verify brightness, colour consistency and functionality for both single LEDs and complex arrays. These solutions are designed to reduce testing time and improve accuracy for LED‑based PCBs.
What are dual‑well test fixtures used for?
Dual‑well fixtures allow operators to test two PCBs in tandem, significantly reducing handling time and increasing throughput. They are ideal for high‑volume production lines where efficiency and speed are critical.
How do auto‑open/close gate functions help?
Auto‑open and auto‑close gates automate fixture actuation, making board loading and unloading faster and more consistent. This reduces operator fatigue, minimises errors and improves overall production flow.
Can Forwessun customise fixtures for unique or complex PCB designs?
Absolutely. Our engineering team specialises in tailoring fixtures for high‑density, fine‑pitch and mechanically challenging PCBs. Whether you need advanced cooling, sensor testing, zero‑flex support or multi‑stage test integration, we can design a solution around your requirements.
Do you provide global support?
Yes. We support customers across America, Canada, Asia and Europe, offering fixture servicing, upgrades, repairs and engineering assistance wherever your production lines are located.
Key Takeaways
- High‑volume manufacturers needing faster cycle times
- Automotive, aerospace and medical sectors requiring strict traceability
- LED‑based product manufacturers needing optical validation
- Industrial device makers with complex sensor arrays
- Companies scaling production and needing more robust test processes
