PCB X Ray Inspection Plan: Laying It Out First 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 X ray inspection plan from the perspective of a PCBA…

Interconnect Stress Testing of PCB Vias and Plated Holes An interconnect stress test passes a current through a chain of vias to heat them, then cools them, and repeats the cycle while measuring the resistance of the chain. The resistance rises as a barrel begins to crack, and the test…

Process Water Treatment in PCB Manufacturing Water is the largest material a board shop consumes and the one it thinks about least, until a plating defect or an effluent limit forces the subject. Process water touches the panels at almost every step, and its quality determines whether a rinse removes…

Inner Layer Oxide Treatment Before Lamination Before the layers of a multilayer board are pressed together, the copper on the inner layers is treated so that the resin can bond to it. Copper alone does not bond well to epoxy: the surface is smooth and chemically unreactive, and a bond…

PCB X Ray Inspection Data: What the Numbers Say 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 X ray inspection data from the perspective of a PCBA…

PCB X Ray Inspection Maintenance: Keeping It Working 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 X ray inspection maintenance from the perspective of a PCBA factory…

Thermal Interface Material Dispensing Control on Assemblies A thermal interface material fills the microscopic gaps between a component and its heat sink, and its purpose is to replace the air that would otherwise occupy those gaps. Air is a poor conductor, so the interface is often the largest single resistance…

PCB X Ray Inspection 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 X ray inspection setup gives you a practical advantage when…

Board Level Shield Can Design And Attachment A board level shield is a metal cover placed over a group of components to stop the radio frequency energy they generate from leaving the area and to stop external energy from reaching them. It is a mechanical part fitted to the board,…

PCB X Ray Inspection Cost: What It Adds Up To 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…