Multi-Stage Fixtures

Multi-Stage test fixtures provide advanced, automated solutions that combine multiple critical testing routines into a single, unified test cycle. In modern electronics manufacturing, printed circuit board assemblies (PCBAs) often require several distinct stages of evaluation—including In-Circuit Testing (ICT), Functional Testing (FCT), flash programming, and boundary scan routines. Multi-stage fixtures consolidate these disparate operations into one streamlined system, eliminating the need to physically move and reclamp the Device Under Test (DUT) across separate testing stations on the production floor.

By utilizing dual-stage compression mechanisms and specialized side-access interconnect solutions, multi-stage fixtures separate complex test procedures into discrete, sequential steps within the same fixture frame. The primary stroke may execute low-level component validation and power safety checks, while a secondary mechanical or pneumatic stroke engages deeper functional probes, programming headers, or side connectors. This multi-tiered approach allows manufacturers to catch structural or electrical defects early in the cycle before executing high-level functional or firmware routines, significantly reducing cycle times, labor requirements, and overall manufacturing costs.