PCB Aqueous Washing After Assembly: Washing a Board Properly Water-based cleaning looks simple until a board fails in the field. The wash removes flux, paste residue and handling soils from the assembly. It also introduces new risks that a dry process never faces. Trapped water, detergent residue and slow drying…

PCB Flux Residue and Ionic Contamination: From Design to Repeatable Production 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 flux residue and ionic contamination from the perspective…

Robot Arm Control PCB: Sensors, Motor Drive and MCU Layout A robotic arm is a machine that must know where it is, move smoothly to where it needs to be, and stop safely if anything goes wrong. The board that coordinates all of that is a real-time control system with…

PCB Slot for Isolation: Cutting the Copper Apart A slot in a PCB is a routed opening through the board, and its job is simple to state. It breaks the surface path between two conductors so current cannot creep across the laminate. Designers use it when spacing alone cannot meet…

PCB High Voltage Spacing Rules: From Design to Repeatable Production 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 high voltage spacing rules from the perspective of a…

PCB Manufacturing Services: Process, Lead Time, Quality PCB manufacturing services are the bridge between a design file and a physical board, and the quality of that bridge decides whether a product ships on schedule. Two suppliers can quote the same Gerber package and deliver boards that behave very differently, because…

Smartwatch PCB: Fitting Radio, Display and Battery in a Case A smartwatch is the most tightly packed consumer product in volume production. The case is a few centimetres across, the display occupies most of the front surface, a battery takes most of the internal volume and the radio still has…

Thermally Conductive PCB: How the Dielectric Layer Works A thermally conductive laminate is built around a simple idea: replace the glass-reinforced dielectric with something that carries heat far better, so that the components on the board have a short path to a metal structure. The important word is laminate, because…

Imaging System PCB: A Complete Technical Guide An imaging system is a measurement instrument that happens to produce a picture. Whether it is a medical scanner, a machine vision camera or a scientific detector, the board behind it has one job that dominates every other consideration: to preserve the signal…

Voice Assistant PCB: Microphones, Audio Path and Radio A voice assistant board has to do something that most embedded systems do not: it has to listen continuously with enough sensitivity to hear a command across a room, and it has to do that without consuming enough power to drain its…