When a board passes every test on the line and still fails in the field, the defect did not appear after shipment — it was there at test and nothing looked for it. That is the uncomfortable truth behind most warranty returns on digital assemblies: the escape is a gap...
If the boundary scan software that runs your production test has just been discontinued — the vendor sunset the product, dropped support for your controller, or was absorbed and the tool quietly disappeared — the honest answer to "what now?" is this: your test...
If you are choosing a test strategy for a dense, low-volume, high-mix board and weighing bed-of-nails in-circuit test against JTAG boundary scan, here is the decision in one sentence: as physical access disappears and product mix climbs, the economics tip away from...
If you are staring at a freshly assembled board covered in BGAs, QFNs, and fine-pitch parts and wondering how you are supposed to test solder joints you physically cannot reach, the short answer is this: you test them electrically, through the chips themselves, using...
I get the same call about twice a month. A test engineering manager at a mid-sized contract manufacturer has just been handed a new program — usually a complex digital board with a stack of FPGAs, a couple of scan-enabled processors, and a deadline that does not move....
After three decades helping aerospace and defense manufacturers stress-test the boards that fly on satellites, fighter jets, and mission-critical ground systems, I have seen one bottleneck repeat itself across every facility I walk into: in-circuit test programs that...
The Hidden Gap in “Automated” JTAG Testing Automation has transformed electronics manufacturing. Today’s engineers and manufacturers rely heavily on Automated Boundary Scan Test, JTAG Test Solutions, and advanced Boundary Scan Test Software to validate increasingly...
The Growing Complexity of PCB Testing Modern printed circuit boards are more complex than ever. Higher component density, advanced architectures, and tighter timelines have pushed traditional testing methods to their limits. Engineers and manufacturers are expected to...
One of the most rewarding aspects of my work at Flynn Systems is watching a customer transform their test process and achieve measurable results. Today I want to share a case study that illustrates exactly what happens when a manufacturer commits to implementing...
When a board fails on the production line, you need answers fast. At Flynn Systems, we have spent nearly four decades helping test engineers, hardware designers, and manufacturing teams find those answers. Our approach centers on one powerful principle: JTAG boundary...
The Origins and Purpose of IEEE 1149.x Standards When I first encountered boundary scan technology decades ago, the electronics industry was facing a growing crisis. Integrated circuits were becoming increasingly complex, packages were shrinking, and traditional test...