Maybe you’ve seen a lot of circuit boards with different size and shapes, but no matter how different they are, they are manufactured by making a large array of boards in a single sheet, which is called PCB Fabrication Panel, or Fab Panel. Even if your circuit board is small as a coin, it will begin production on a sheet of copper clad lamination (CCL) base material, usually 18’’x24’’, and your design will be replicated across base material until find the maximum usage rate, then to produce as many boards as possible from it. If you understand the PCB fabrication panel, it will be helpful for you to understand the volume PCB cost, your PCB unit price is based on the number of panels being produced, not the number of individual pieces you want to order.
The PCB fabrication panel is different from the “panel” people always used to panelize their own design(s). This “Panel” in most people’s mind is always the glossary “Set” in PCB manufacturing industry, and PCB fabrication panel consists of many Sets. Until the very last step when individual boards or Sets are cut out of the fab panel, all PCB manufacturing deals with PCBs in that large, fab panel format.
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