Back drilling is used to remove conductive via stubs of the copper barrel in the through-hole in printed circuit boards (PCB). The stub can result in serious signal integrity problems in the high-speed design. Learn More.
PCB designs begins when a electronic engineer chooses the components required to perform the functions of the end product and then determines the best way to connect those components electrically. The design gives the manufacturer a lot of information including the PCB dimension, hole sizes and positions, and overall mechanical definition; it may also incorporate notes referring type of material, specifications, UL requirements, solder mask, and test requirements. Learn More.
The double-sided PCB (or 2-layer PCB) is the printed circuit board with copper coated on both sides, top and bottom. There is an insulating layer in the middle. To use circuits on both sides, there must be a proper circuit connection between the two sides. The “bridges” between such circuits are call vias. A via is a small hole on the PCB board coated with metal, which can be connected with circuits on both sides. Learn More.
Selections of the packaging approaches among the various elements is dictated not only by system function, but also by the component types selected and by the operation parameters of the system, such as the clock speeds, power consumption, and heat management methods, and the environment in which the system will operate. Learn More.