In-Circuit Test (ICT) Fixtures & Turnkey Solutions

Through our acquisition of SSP, Circuit Check now brings over 4,600 turnkey ICT fixture/program projects experience to our customers. Our projects range from PCBAs with fewer than 100 nets to highly complex designs with over 10,000 nets. Whether you need a single ICT fixture/program or a complete family of PCBAs tested, we deliver reliable, scalable, and high-quality solutions. 

ICT Testers
The backbone of ICT is the tester. Circuit Check uses Keysight Technologies 3070 ICT testers (formerly Agilent/HP 3070), providing the foundational test and measurement equipment to address complex PCBA test access and coverage challenges. Our facility includes multiple fully-loaded Keysight 3070 Series 5 testers and experience using Keysight’s High Node Count (HNC) Adapter. For PCBAs with very high node counts, hardware adapters extend tester capacity to support projects with more than 5,280 nodes. 

ICT testers are fully integrated into our turnkey solutions, ensuring that OEMs and contract manufacturers (CMs) can efficiently address manufacturing test challenges while maintaining high product quality.  

ICT Fixtures
ICT fixtures act as intermediaries between the software program and the tester, providing reliable contact between the PCBA’s test points and spring-loaded probes on a “bed of nails” fixture. Circuit Check offers a variety of fixture configurations, including: 

• Single-stage, dual-stage, and tri-stage setups 
• Clamshell fixtures for top-and-bottom testing 
• Wired and wireless designs 
• Pneumatic or vacuum box fixtures 
• Small or large fixture sizes 
• Single DUT or multi-DUT fixtures 
• Fixtures supporting multiple DUTs on a single platform 
• Loopback actuation configurations 

We work closely with leading fixture suppliers to ensure the right design is implemented for maximum coverage and quality. Circuit Check’s expertise ensures that each fixture is optimized for the specific PCBA being tested, reducing cost-of-test while improving reliability. 

ICT Software Programming
Software programming is at the core of Circuit Check’s ICT solutions. Our team programs PCBAs of any complexity—from a few nets to over 10,000—ensuring fast, accurate, and reliable testing. Our standard ICT programming verifies common manufacturing defects such as shorts, opens, missing components, and misplaced components. For customers with custom requirements, we can program to their supplied Statement of Work (SOW). 

Advanced ICT capabilities include: 

• LED testing 
• In-System Programming (ISP) 
• Flash and EEPROM programming 
• AC-to-DC converter testing 
• Case-by-case functional tests 

Whether testing a single PCBA, multiple boards, or an entire product line, Circuit Check delivers turnkey ICT systems designed to save time, reduce costs, and ensure superior product quality.  

Why Choose Circuit Check for ICT
By combining Circuit Check’s fixture design and fabrication expertise with SSP’s proven software programming and tester integration capabilities, customers now benefit from: 

• A single source for end-to-end ICT solutions 
• Access to the latest ICT technologies and testing methodologies 
• Scalable systems for both current and future PCBA families 
• Enhanced test coverage and defect detection 
• Reduced time-to-market and cost-of-test 

Circuit Check’s turnkey ICT solutions are trusted by OEMs and CMs alike to deliver consistent, repeatable, and high-quality testing for PCBAs of all sizes and complexities.