Test Coverage: Design for Testability: Test Access and Coverage Rules Design for test is one of the few engineering disciplines that costs nothing to apply and saves a great deal when it is missing. Its whole purpose is to make a fault visible at the stage where it can be…

PCB Functional Test Fixture: Bringing a Board to Life Electronics manufacturing has become a discipline of small details. Solder paste volumes, placement accuracy, temperature profiles and inspection limits all add up to the final result. This guide looks at PCB functional test fixture from the perspective of a PCBA factory…

PCB Cross Section Sample Prep: Cutting a Board to Look Inside Buyers and engineers often focus on the finished product and forget the production line behind it. In practice, most field failures can be traced back to process decisions made during assembly. Understanding PCB cross section sample prep gives you…

PCB Coupon Design for Impedance: Measuring What You Built Electronics manufacturing has become a discipline of small details. Solder paste volumes, placement accuracy, temperature profiles and inspection limits all add up to the final result. This guide looks at PCB coupon design for impedance from the perspective of a PCBA…

PCB Panel Test Strips: A Piece Built to Be Broken Electronics manufacturing has become a discipline of small details. Solder paste volumes, placement accuracy, temperature profiles and inspection limits all add up to the final result. This guide looks at PCB panel test strips from the perspective of a PCBA…

SMT Component Placement Accuracy and Offset Control Placement accuracy sounds like a single number on a machine datasheet, but in production it is the sum of registration, vision, mechanical wear, and the tolerance built into your land patterns. A head that can place a chip within twenty-five micrometres still produces…

PCB Coupon for Solderability: Testing How It Wets Buyers and engineers often focus on the finished product and forget the production line behind it. In practice, most field failures can be traced back to process decisions made during assembly. Understanding PCB coupon for solderability gives you a practical advantage when…

Silver Sintering Die Attach for Power Electronics Boards As silicon carbide and gallium nitride devices push power densities upward, the weakest element in many modules is no longer the semiconductor but the layer that attaches it to the substrate. Solder melts between 180 and 230 degrees, and a joint that…

HALT Testing: HALT and HASS Testing for PCB Assembly Reliability Two acronyms dominate accelerated reliability work on electronics, and they answer different questions. HALT testing asks how much abuse a design can take before it breaks, while HASS testing asks whether a production unit was built correctly. Used together they…

PCB Manufacturing Price: A 2020-2025 Cost Analysis Board pricing moved sharply between 2020 and 2025, and not in one direction. Laminate shortages pushed prices up, capacity expansions pushed them back down, and the mix of technology being bought changed at the same time. This analysis explains what happened to the…