What’s the Difference Between 2- and 4-Layer PCBs? (.PDF Download)

Multi-layered printed circuit boards (PCBs) are typically preferred because they offer high signal intensity. Of all the multi-layered types, the 2-layer PCB is the most common, as it can accommodate interconnects on both sides. Depending on the desired level of complexity, PCBs can range from two to eight layers—every increment means the addition of two more layers.

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