PCB Solder Skip After Wave: The Joints the Wave Missed Modern electronics depend on boards that are assembled correctly the first time. Every product – a phone, a charger, a medical instrument or an industrial controller – relies on thousands of solder joints that must conduct current for years. This…

PCB Sourcing Strategy: Comparing Chinese and Overseas Supply Where a Board Is Built Is a Strategic Decision Choosing where a printed circuit board is manufactured stopped being a simple purchasing question some time ago. It now determines cost structure, delivery speed, quality consistency, supply chain resilience and, on some programmes,…

How to Apply Solder Mask on a PCB: PCB Design & PCB Manufacturing Guide As electronic products continue to become smaller, faster, and more powerful, printed circuit boards (PCBs) are required to deliver higher electrical performance, tighter dimensional tolerances, and greater long-term reliability. From electric vehicles and industrial control systems…

Impedance Control PCB Design: Stackup, Tolerance and Test From Optional to Mandatory There was a period when controlled impedance was a specification reserved for radio frequency boards and a handful of demanding digital interfaces. That period is over. As edge rates have steepened and data rates have risen, impedance control…

PCB Flux Spatter: Dots of Flux on the Board 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 flux spatter from the perspective of a PCBA factory floor,…

Direct Plated Copper in PCB Fabrication: Process and Reliability The Step That Decides Whether a Via Conducts Every plated through hole in a printed circuit board depends on a thin conductive layer being formed on the drilled hole wall before electroplating can build the copper up to its final thickness.…

PCB Pin Hole in Solder Joint: A Small Hole in the Joint Modern electronics depend on boards that are assembled correctly the first time. Every product – a phone, a charger, a medical instrument or an industrial controller – relies on thousands of solder joints that must conduct current for…

Ceramic PCB Basics: Materials, Processes and Selection When FR-4 Is the Wrong Answer Consumer and industrial electronics are built on glass fibre epoxy laminates, and for the overwhelming majority of products that is correct. But as power density rises, feature sizes shrink and operating environments become harsher, the limitations of…

PCB Copper Dissolution in Wave Solder: Losing Copper to the Solder 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 copper dissolution in wave solder gives…

Wireless Module PCBA Assembly: RF, Quality and Cost Where Radio Performance Is Decided Wireless modules are now embedded in almost everything: IoT sensors and gateways, industrial monitoring, smart home products, wearables and consumer devices. Whatever the radio technology, whether Wi-Fi, Bluetooth, LoRaWAN, NB-IoT, LTE or 5G, the final performance of…