PCB Cleanroom Defects: What Goes Wrong 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 cleanroom defects gives you a practical advantage when you choose a…

PCB Cleanroom Data: What the Numbers Say 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 cleanroom data gives you a practical advantage when you choose…

PCB Cleanroom Limits: Where the Edges Are 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 cleanroom limits from the perspective of a PCBA factory floor, covering understanding…

PCB Cleanroom Maintenance: Keeping It Working 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 article explains PCB cleanroom…

PCB Cleanroom Plan: Laying It Out First 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 article explains PCB…

Ioniser Verification: Decay Time and Offset Voltage An ioniser is the only static control device that puts charge into the air, which is why it is also the one that is most often installed and then forgotten. Two numbers describe whether it works: how quickly it neutralises a charge, and…

Solder Mask Thickness and Coverage over Copper Features Solder mask is specified by colour in most design packages and by nothing else, yet the two numbers that decide whether it survives assembly are the thickness over copper and the degree of cure. A mask that is thin at the edge…

Through-Hole Hole Fill in Wave Soldering: Causes of Skip Hole fill is the one wave soldering requirement that cannot be judged from the top of the board. Alloy visible at the top of a barrel can hide a void running half its length, and a joint that looks sound on…

Rework Station Setup and Thermal Control Rework is a reflow process performed on one component at a time, on a board that already carries other parts. That single difference changes almost everything: the heat has to be local, the rest of the board has to stay below its limits, and…

Line Audit Checklist for PCB Assembly A line audit is a structured look at a running line to confirm that the process is being executed as documented. It is not a quality inspection of the product and not a search for defects; it is a check of the arrangements, the…