<fiducial />

Overview

A fiducial is a reference marker placed on a PCB that pick-and-place machines use for optical alignment during automated assembly. It consists of a circular copper pad with soldermask clearance (pullback) around it, creating a high-contrast marker that's easily detected by machine vision systems.

Fiducials do not have a schematic representation.

Fiducials are typically placed at corners of the board or near fine-pitch components to ensure accurate component placement.

export default () => (
  <board width="30mm" height="20mm">
    <fiducial 
      padDiameter="1mm" 
      soldermaskPullback="1mm" 
      pcbX={-10} 
      pcbY={-5} 
    />
    <fiducial 
      padDiameter="1mm" 
      soldermaskPullback="1mm" 
      pcbX={10} 
      pcbY={5} 
    />
  </board>
)

Properties

Property	Type	Default	Description
padDiameter	number | string	-	Diameter of the copper pad (e.g., "1mm" or 1)
soldermaskPullback	number | string	padDiameter / 2	Margin of soldermask clearance around the pad
pcbX	number	0	X position of the fiducial center on the PCB
pcbY	number	0	Y position of the fiducial center on the PCB
layer	"top" | "bottom"	"top"	PCB layer for the fiducial