<footprint />

Overview

Within a <footprint /> element you can define PCB elements such as <platedhole /> or <smtpad />.

Here's an example of a chip with a custom footprint:

export default () => (
<board width="10mm" height="10mm">
  <chip
    name="U1"
    footprint={
      <footprint>
        <platedhole
          portHints={["4"]}
          pcbX="3.2499299999998357mm"
          pcbY="-2.249932000000058mm"
          outerDiameter="1.9999959999999999mm"
          holeDiameter="1.3000228mm"
          shape="circle"
        />
        <platedhole
          portHints={["2"]}
          pcbX="3.2499299999998357mm"
          pcbY="2.249932000000058mm"
          outerDiameter="1.9999959999999999mm"
          holeDiameter="1.3000228mm"
          shape="circle"
        />
        <platedhole
          portHints={["1"]}
          pcbX="-3.2499299999999494mm"
          pcbY="2.249932000000058mm"
          outerDiameter="1.9999959999999999mm"
          holeDiameter="1.3000228mm"
          shape="circle"
        />
        <platedhole
          portHints={["3"]}
          pcbX="-3.2499299999999494mm"
          pcbY="-2.249932000000058mm"
          outerDiameter="1.9999959999999999mm"
          holeDiameter="1.3000228mm"
          shape="circle"
        />
        <silkscreenpath
          route={[
            { x: -2.2743160000001126, y: -2.999994000000015 },
            { x: 2.274315999999999, y: -2.999994000000015 },
          ]}
        />
        <silkscreenpath
          route={[
            { x: -2.999994000000129, y: 1.0999978000000965 },
            { x: -2.999994000000129, y: -0.999998000000005 },
          ]}
        />
        <silkscreenpath
          route={[
            { x: 3.0999937999998792, y: 1.0279888000000028 },
            { x: 3.0999937999998792, y: -1.0999977999999828 },
          ]}
        />
        <silkscreenpath
          route={[
            { x: -1.99999600000001, y: 2.999994000000015 },
            { x: 2.274315999999999, y: 2.999994000000015 },
          ]}
        />
      </footprint>
    }
    schPortArrangement={{
      leftSide: {
        direction: "top-to-bottom",
        pins: [1, 3],
      },
      rightSide: {
        direction: "bottom-to-top",
        pins: [4, 2],
      },
    }}
  />
</board>
)

Reference Designator

You can use {NAME}, {REF}, or {REFERENCE} in the text property of a <silkscreentext /> element within a footprint. When the PCB is rendered, these variables are automatically replaced with the name (reference designator) of the component.

This is the standard way to label components on the silkscreen layer.

export default () => (
<board width="30mm" height="30mm">
  <chip
    name="U1"
    pcbX={0}
    pcbY={0}
    footprint={
      <footprint>
        <silkscreentext
          text="{NAME}"
          pcbX={0}
          pcbY={4}
          fontSize="1mm"
        />
         <platedhole
          portHints={["4"]}
          pcbX="3.2499299999998357mm"
          pcbY="-2.249932000000058mm"
          outerDiameter="1.9999959999999999mm"
          holeDiameter="1.3000228mm"
          shape="circle"
        />
        <platedhole
          portHints={["2"]}
          pcbX="3.2499299999998357mm"
          pcbY="2.249932000000058mm"
          outerDiameter="1.9999959999999999mm"
          holeDiameter="1.3000228mm"
          shape="circle"
        />
        <platedhole
          portHints={["1"]}
          pcbX="-3.2499299999999494mm"
          pcbY="2.249932000000058mm"
          outerDiameter="1.9999959999999999mm"
          holeDiameter="1.3000228mm"
          shape="circle"
        />
        <platedhole
          portHints={["3"]}
          pcbX="-3.2499299999999494mm"
          pcbY="-2.249932000000058mm"
          outerDiameter="1.9999959999999999mm"
          holeDiameter="1.3000228mm"
          shape="circle"
        />
        <silkscreenpath
          route={[
            { x: -2.2743160000001126, y: -2.999994000000015 },
            { x: 2.274315999999999, y: -2.999994000000015 },
          ]}
        />
        <silkscreenpath
          route={[
            { x: -2.999994000000129, y: 1.0999978000000965 },
            { x: -2.999994000000129, y: -0.999998000000005 },
          ]}
        />
        <silkscreenpath
          route={[
            { x: 3.0999937999998792, y: 1.0279888000000028 },
            { x: 3.0999937999998792, y: -1.0999977999999828 },
          ]}
        />
        <silkscreenpath
          route={[
            { x: -1.99999600000001, y: 2.999994000000015 },
            { x: 2.274315999999999, y: 2.999994000000015 },
          ]}
        />
        
          </footprint>
    }
  />
</board>
)