Blog
How to Identify PCB Layers: Visual Clues, Files and Limits
Learn how to identify PCB copper layers using design files, board-edge clues, vias, X-ray, and cross-section evidence, with clear limits for each method.
Blog
How Does a PCB Board Work? Copper Paths, Layers and Component Roles
Learn how a PCB supports components and routes power, ground and signals through copper traces, pads, vias and layers, with a simple circuit walkthrough.
Blog
How to Tell How Many Layers a PCB Has: Vias, Edges and Stackup Checks
Learn how to tell how many layers a PCB has using edge inspection, vias, light checks, stackup clues, and when to ask a manufacturer for confirmation.