PCB Quality Agreement Setup: Getting Ready 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 quality agreement setup gives you a practical advantage when you choose…

Immersion Gold Bath: 4 Checks for a Reliable ENIG Finish The immersion gold bath is the last wet stage of an ENIG finish, and it works by displacement rather than by reduction. Gold ions in solution take electrons from the nickel beneath them, so the gold deposits as the nickel…

PCB Quality Agreement Defects: What Goes Wrong 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…

Drill Wander Control in Deep PCB Holes Drill wander is the lateral deflection of a drilled hole from the position and axis the program intended. On a 0.3 mm hole drilled through a 2.4 mm panel, a wander of 60 um at the exit is common unless the process is…

Plating Current Density: 4 Checks for Even Copper Plating current density is the current divided by the area being plated, and it is the single number that decides how fast copper builds on the panel. Too little and the deposit is thin and dull; too much and the copper burns…

PCB Quality Agreement Standards: Agreeing the Rules 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 quality agreement standards from the perspective of a PCBA factory floor, covering…

Blowhole Defects in Wave Soldering: Causes and Cures A blowhole is a void that has pushed a bubble of gas up through the solder fillet and left an opening at the surface of the joint. It is not the same defect as a pin hole caused by shrinkage, and it…

PCB Quality Agreement Training: Teaching the Team 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…

Solder Mask Developing: 4 Causes of an Uneven Pattern Solder mask developing is the step that turns an exposed and cured coating into a finished pattern. The developer dissolves the unexposed coating that the artwork left on the pads, and it has to do so completely without attacking the mask…

PCB Outsourced Assembly Improvement: Getting Better Each Lot 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 outsourced assembly improvement gives you a practical advantage when…