Etiqueta: PCB

Conformal Coating Exclusion Zones: 5 Parts to Mask

A fresh batch of industrial controller boards just failed field testing. The root cause? Conformal coating seeped into connector contacts during processing. This scenario repeats constantly in conformal coating exclusion zones management. Many engineers assume full-board coverage equals better protection. Actually, unmasked functional areas create invisible failure points that surface months after shipment. Understanding which components demand […]

PCB Thermal Management: Vias and Copper Pours That Work

A MOSFET on a 5 W buck converter runs fine on the bench. Bolt it into a sealed enclosure, however, and the same part climbs past 110 °C within minutes. PCB thermal management is what separates a board that survives field use from one that cooks its own solder joints. Actually, heat is not a […]

Bare PCB Quality Control: A Practical Guide to Testing and Reliability

An unpopulated substrate equipped with copper traces, vias, pads, and dielectric layers serves as the fundamental carrier for nearly all electronic equipment. From consumer gadgets to high-performance aerospace systems, medical instruments, and industrial control devices, the bare PCB quality control process determines the final product’s success. Fabrication involves high-precision procedures like lamination, drilling, plating, imaging, etching, solder […]

PCB Tombstoning: Causes, Prevention & SMT Assembly Solutions

Precision defines success in electronics manufacturing. Even minor process imbalances can trigger significant defects during production. PCB tombstoning remains one of the most frequent issues in surface mount technology (SMT). This defect occurs when a component lifts on one end during solder reflow and stands vertically on the board. Engineers often call this the tombstone effect in […]

PCB Manufacturing Process: A Comprehensive Guide to Understanding and Mastering the Techniques

Printed Circuit Boards (PCBs) provide the foundation for the assembly of electronic components and enable the functionality of a wide range of devices. This article journeys through the requisite steps in the PCB manufacturing process, detailing the procedures involved in each. Assembly of Circuit Boards Introduction Printed circuit boards (PCBs) serve as electronic devices’ mechanical […]