ULTRASOUND MACHINE HIGH-LEVEL PCB CIRCUIT BOARD NO FURTHER A MYSTERY

One-sided PCB board: The solder joints are concentrated on 1 side, and components are generally inserted on another side. Some products nevertheless have SMD components within the copper-clad side. Double-sided board: Both sides can be structure, and both of those might have plug-in components or SMD components.Zachariah Peterson has an in depth