{
  "board": {
    "design_settings": {
      "defaults": {
        "board_thickness": 1.6,
        "copper_line_width": 0.2,
        "copper_text_size_h": 1.5,
        "copper_text_size_v": 1.5,
        "copper_text_thickness": 0.3,
        "diff_pair_gap": 0.15,
        "diff_pair_width": 0.23
      },
      "rules": {
        "max_error": 0.005,
        "min_clearance": 0.15,
        "min_copper_edge_clearance": 0.3,
        "min_hole_clearance": 0.2,
        "min_hole_to_hole": 0.25,
        "min_microvia_diameter": 0.2,
        "min_microvia_drill": 0.1,
        "min_silk_clearance": 0.1,
        "min_through_hole_diameter": 0.5,
        "min_track_width": 0.15,
        "min_via_annular_width": 0.125,
        "min_via_diameter": 0.5,
        "solder_mask_clearance": 0.05,
        "solder_mask_min_width": 0.1
      },
      "stackup": {
        "layers": [
          {
            "color": "Default",
            "copper_finish": "ENIG",
            "dielectric_constant": 4.3,
            "loss_tangent": 0.02,
            "material": "Copper",
            "name": "F.Cu",
            "thickness": 0.035,
            "type": "copper"
          },
          {
            "dielectric_constant": 4.3,
            "loss_tangent": 0.02,
            "material": "FR4 (7628 Prepreg)",
            "name": "Dielectric 1",
            "thickness": 0.2104,
            "type": "core"
          },
          {
            "color": "Default",
            "dielectric_constant": 4.5,
            "loss_tangent": 0.02,
            "material": "Copper",
            "name": "In1.Cu (GND)",
            "thickness": 0.0175,
            "type": "copper"
          },
          {
            "dielectric_constant": 4.5,
            "loss_tangent": 0.02,
            "material": "FR4 Core",
            "name": "Dielectric 2",
            "thickness": 1.065,
            "type": "core"
          },
          {
            "color": "Default",
            "dielectric_constant": 4.3,
            "loss_tangent": 0.02,
            "material": "Copper",
            "name": "In2.Cu (PWR)",
            "thickness": 0.0175,
            "type": "copper"
          },
          {
            "dielectric_constant": 4.3,
            "loss_tangent": 0.02,
            "material": "FR4 (7628 Prepreg)",
            "name": "Dielectric 3",
            "thickness": 0.2104,
            "type": "core"
          },
          {
            "color": "Default",
            "dielectric_constant": 4.3,
            "loss_tangent": 0.02,
            "material": "Copper",
            "name": "B.Cu",
            "thickness": 0.035,
            "type": "copper"
          }
        ]
      }
    }
  },
  "meta": {
    "filename": "carrier_baseboard.kicad_pro",
    "version": 1
  },
  "net_settings": {
    "classes": [
      {
        "clearance": 0.15,
        "diff_pair_gap": 0.15,
        "diff_pair_width": 0.23,
        "name": "PCIe_85Ohm",
        "pcb_color": "rgba(255, 0, 0, 0.8)",
        "track_width": 0.23,
        "via_diameter": 0.5,
        "via_drill": 0.25
      },
      {
        "clearance": 0.2,
        "diff_pair_gap": 0.23,
        "diff_pair_width": 0.18,
        "name": "SAS_100Ohm",
        "pcb_color": "rgba(0, 0, 255, 0.8)",
        "track_width": 0.18,
        "via_diameter": 0.5,
        "via_drill": 0.25
      },
      {
        "clearance": 0.3,
        "diff_pair_gap": 0.25,
        "diff_pair_width": 0.5,
        "name": "Power_12V",
        "pcb_color": "rgba(255, 128, 0, 0.8)",
        "track_width": 1.5,
        "via_diameter": 0.8,
        "via_drill": 0.4
      }
    ]
  }
}