What is PCB Panelization: Definition and Uses Explained

PCB panelization is the process of arranging multiple printed circuit boards (PCBs) on a single larger board to be manufactured together. This helps improve production efficiency and reduces costs by allowing many PCBs to be made at once.

How It Works

Imagine you want to bake many cookies at once. Instead of baking each cookie separately, you place many cookie shapes on one big baking tray. PCB panelization works similarly by placing multiple smaller circuit boards on one large board called a panel.

This panel is then sent through manufacturing steps like printing, drilling, and soldering all at once. After manufacturing, the panel is cut into individual PCBs. This method saves time and money because machines handle many boards in one go instead of one by one.

Example

This example shows a simple layout of a PCB panel with 4 identical boards arranged in 2 rows and 2 columns.

javascript

const Panel = {
  rows: 2,
  columns: 2,
  board_size_mm: { width: 50, height: 40 },
  spacing_mm: 2
};

function calculatePanelSize(panel) {
  const width = panel.columns * panel.board_size_mm.width + (panel.columns - 1) * panel.spacing_mm;
  const height = panel.rows * panel.board_size_mm.height + (panel.rows - 1) * panel.spacing_mm;
  return { width, height };
}

const panelSize = calculatePanelSize(Panel);
console.log(`Panel size: ${panelSize.width}mm x ${panelSize.height}mm`);

Output

Panel size: 104mm x 82mm

When to Use

PCB panelization is used when you need to produce many identical or similar PCBs efficiently. It is common in mass production to reduce manufacturing time and cost.

For example, a company making smartwatches might panelize dozens of small circuit boards on one panel to speed up assembly. It is also useful for prototypes when testing multiple versions at once.

Key Points

• Panelization groups multiple PCBs on one large board for batch manufacturing.
• It reduces production time and cost by processing many boards simultaneously.
• Panels are cut after manufacturing to separate individual PCBs.
• Common in mass production and prototype testing.

Key Takeaways

PCB panelization arranges multiple boards on one panel to improve manufacturing efficiency.

It saves time and cost by producing many PCBs together instead of individually.

Panels are cut into single PCBs after all manufacturing steps are complete.

Use panelization for mass production or testing multiple PCB versions at once.