PCB Defect Pareto Cost: What It Adds Up To 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 defect pareto cost from the perspective of a PCBA factory…

PCB Defect Pareto Problems: When It 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 defect pareto problems gives you a practical advantage when…

PCB Defect Pareto Checklist: What to Check 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 defect pareto checklist gives you a practical advantage when you…

Dispensing Needle: 5 Rules for Solder Paste A dispensing needle is the last few millimetres of the solder paste path, and it is where most dispensing problems start. The paste has to pass through a bore that is only a few hundred micrometres across, and the behaviour of that passage…

Pot Skimming: 6 Rules That Cut Dross and Alloy Loss Pot skimming is the removal of the oxide layer that forms on the surface of a molten solder bath, and it is the task that decides how much dross the wave carries onto the boards and how much alloy is…

PCB First Pass Yield Specification: Writing It Down Precisely 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 first pass yield specification gives you a practical…

X-Ray Tube: Design Rules and Process Limits An X-ray tube is the source at the heart of a BGA inspection system, and it is a consumable rather than a permanent part. It emits electrons from a filament, accelerates them into a target and produces the X-rays that pass through the…

Fume Extraction on a Reflow Oven: 6 Service Checks Fume extraction on a reflow oven removes the flux vapour that the paste releases as it heats, together with the condensate that forms when that vapour cools. Without extraction the vapour condenses on the coolest surfaces inside the oven, which are…

Soldering Pallet Care: 5 Rules for Selective Solder A soldering pallet is the fixture that carries a board through a selective or wave soldering machine, and it does more than hold the board still. It masks the areas that must stay solder free, it keeps the board flat under the…

Skipped Deposits: 7 Causes in Stencil Printing Skipped deposits are apertures that receive no paste at all, leaving a bare pad after the print. The defect is different from a deposit that is short or thin, because the failure is complete rather than partial, and the cause is usually a…