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feat: add rounded pad corners to all footprints #691

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e1876b3
feat: add rounded pad corners to all footprints
anil08607 Jul 4, 2026
be981bc
feat
anil08607 Jul 4, 2026
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5 changes: 2 additions & 3 deletions src/fn/dfn.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ export const dfn = (
): { circuitJson: AnyCircuitElement[]; parameters: any } => {
const parameters = dfn_def.parse(raw_params)
const pads: AnyCircuitElement[] = []
const cornerRadius = Math.min(parameters.pl, parameters.pw) / 8
for (let i = 0; i < parameters.num_pins; i++) {
const { x, y } = getCcwSoicCoords({
num_pins: parameters.num_pins,
Expand All @@ -35,9 +36,7 @@ export const dfn = (
pl: parameters.pl,
widthincludeslegs: true,
})
pads.push(
rectpad(i + 1, x, y, parameters.pl ?? "1mm", parameters.pw ?? "0.6mm"),
)
pads.push(rectpad(i + 1, x, y, parameters.pl, parameters.pw, cornerRadius))
}

// The silkscreen is 4 corners and an arrow identifier for pin1
Expand Down
3 changes: 2 additions & 1 deletion src/fn/msop.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -90,12 +90,13 @@ export const msop = (
const p = length.parse(parameters.p || defaults.p)
const pl = length.parse(parameters.pl || defaults.pl)
const pw = length.parse(parameters.pw || defaults.pw)
const cornerRadius = Math.min(pl, pw) / 8

const pads: AnyCircuitElement[] = []

for (let i = 0; i < parameters.num_pins; i++) {
const { x, y } = getMsopCoords(parameters.num_pins, i + 1, w, p, pl)
pads.push(rectpad(i + 1, x, y, pl, pw))
pads.push(rectpad(i + 1, x, y, pl, pw, cornerRadius))
}

const silkscreenBoxWidth = w
Expand Down
3 changes: 2 additions & 1 deletion src/fn/quad.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -144,11 +144,12 @@ export const quad = (
if (orientation === "vert") {
;[padWidth, padHeight] = [padHeight, padWidth]
}
const cornerRadius = Math.min(padWidth, padHeight) / 8

const pn = pin_map[i + 1]!
padOuterHalfX = Math.max(padOuterHalfX, Math.abs(x) + padWidth / 2)
padOuterHalfY = Math.max(padOuterHalfY, Math.abs(y) + padHeight / 2)
pads.push(rectpad(pn, x, y, padWidth, padHeight))
pads.push(rectpad(pn, x, y, padWidth, padHeight, cornerRadius))
}

if (parameters.thermalpad) {
Expand Down
5 changes: 4 additions & 1 deletion src/fn/soic.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -116,6 +116,7 @@ export const soic = (raw_params: {

export const soicWithoutParsing = (parameters: z.infer<typeof soic_def>) => {
const pads: AnyCircuitElement[] = []
const cornerRadius = Math.min(parameters.pl, parameters.pw) / 8
let maxPadExtentX = 0
let maxPadExtentY = 0
for (let i = 0; i < parameters.num_pins; i++) {
Expand All @@ -132,7 +133,9 @@ export const soicWithoutParsing = (parameters: z.infer<typeof soic_def>) => {
if (parameters.pillpads) {
pads.push(pillpad(i + 1, x, y, parameters.pl, parameters.pw))
} else {
pads.push(rectpad(i + 1, x, y, parameters.pl, parameters.pw))
pads.push(
rectpad(i + 1, x, y, parameters.pl, parameters.pw, cornerRadius),
)
}
}

Expand Down
3 changes: 2 additions & 1 deletion src/fn/son.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -48,12 +48,13 @@ export const son = (
const pw = length.parse(parameters.pw)
const epw = length.parse(parameters.epw)
const eph = length.parse(parameters.eph)
const cornerRadius = Math.min(pl, pw) / 8

const pads: AnyCircuitElement[] = []

for (let i = 0; i < parameters.num_pins; i++) {
const { x, y } = getSonPadCoord(parameters.num_pins, i + 1, w, p)
pads.push(rectpad(i + 1, x, y, pl, pw))
pads.push(rectpad(i + 1, x, y, pl, pw, cornerRadius))
}

if (parameters.ep) {
Expand Down
5 changes: 2 additions & 3 deletions src/fn/sop8.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ export const sop8 = (
): { circuitJson: AnyCircuitElement[]; parameters: any } => {
const parameters = sop8_def.parse(raw_params)
const pads: AnyCircuitElement[] = []
const cornerRadius = Math.min(parameters.pl, parameters.pw) / 8

for (let i = 0; i < parameters.num_pins; i++) {
const { x, y } = getCcwSoicCoords({
Expand All @@ -30,9 +31,7 @@ export const sop8 = (
pl: parameters.pl,
widthincludeslegs: true,
})
pads.push(
rectpad(i + 1, x, y, parameters.pl ?? "1.5mm", parameters.pw ?? "0.6mm"),
)
pads.push(rectpad(i + 1, x, y, parameters.pl, parameters.pw, cornerRadius))
}

const sh = (parameters.num_pins / 2 - 1) * parameters.p + parameters.pw
Expand Down
48 changes: 21 additions & 27 deletions src/fn/sot.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -57,32 +57,30 @@ export const getCcwSotCoords = (parameters: {

export const sotWithoutParsing = (parameters: z.infer<typeof sot_def>) => {
const pads: AnyCircuitElement[] = []
const h = Number.parseFloat(parameters.h)
const p = Number.parseFloat(parameters.p)
const pl = Number.parseFloat(parameters.pl)
const pw = Number.parseFloat(parameters.pw)
const cornerRadius = Math.min(pl, pw) / 8

for (let i = 1; i <= parameters.num_pins; i++) {
const { x, y } = getCcwSotCoords({
h: Number.parseFloat(parameters.h),
p: Number.parseFloat(parameters.p),
h,
p,
pn: i,
})
pads.push(
rectpad(
i,
x,
y,
Number.parseFloat(parameters.pl),
Number.parseFloat(parameters.pw),
),
)
pads.push(rectpad(i, x, y, pl, pw, cornerRadius))
}

const width = (parameters.num_pins / 2) * Number.parseFloat(parameters.p)
const height = Number.parseFloat(parameters.h)
const width = (parameters.num_pins / 2) * p
const height = h
const silkscreenPath1: PcbSilkscreenPath = {
layer: "top",
pcb_component_id: "",
pcb_silkscreen_path_id: "silkscreen_path_1",
route: [
{ x: -width / 3, y: height / 2 + Number.parseFloat(parameters.p) / 1.3 },
{ x: width / 3, y: height / 2 + Number.parseFloat(parameters.p) / 1.3 },
{ x: width / 3, y: height / 2 + p / 1.3 },
],
type: "pcb_silkscreen_path",
stroke_width: 0.05,
Expand All @@ -92,19 +90,19 @@ export const sotWithoutParsing = (parameters: z.infer<typeof sot_def>) => {
pcb_component_id: "",
pcb_silkscreen_path_id: "silkscreen_path_2",
route: [
{ x: -width / 3, y: -height / 2 - Number.parseFloat(parameters.p) / 1.3 },
{ x: width / 3, y: -height / 2 - Number.parseFloat(parameters.p) / 1.3 },
{ x: -width / 3, y: -height / 2 - p / 1.3 },
{ x: width / 3, y: -height / 2 - p / 1.3 },
],
type: "pcb_silkscreen_path",
stroke_width: 0.05,
}
const silkscreenRefText: SilkscreenRef = silkscreenRef(0, height + 0.3, 0.3)
const pin1Position = getCcwSotCoords({
h: Number.parseFloat(parameters.h),
p: Number.parseFloat(parameters.p),
h,
p,
pn: 1,
})
pin1Position.x = pin1Position.x - Number.parseFloat(parameters.pw) * 1.5
pin1Position.x = pin1Position.x - pw * 1.5
const triangleHeight = 0.7
const triangleWidth = 0.3
const pin1Indicator: PcbSilkscreenPath = {
Expand Down Expand Up @@ -133,14 +131,10 @@ export const sotWithoutParsing = (parameters: z.infer<typeof sot_def>) => {
stroke_width: 0.05,
}

const h_val = Number.parseFloat(parameters.h)
const p_val = Number.parseFloat(parameters.p)
const pl_val = Number.parseFloat(parameters.pl)
const pw_val = Number.parseFloat(parameters.pw)
const pinColumnCenterX = h_val / 2 + 0.4875
const pinRowSpanY = p_val * 2 + pw_val
const pinToeHalfSpanX = pinColumnCenterX + pl_val / 2
const courtyardStepInnerHalfWidth = h_val / 2 + 0.4
const pinColumnCenterX = h / 2 + 0.4875
const pinRowSpanY = p * 2 + pw
const pinToeHalfSpanX = pinColumnCenterX + pl / 2
const courtyardStepInnerHalfWidth = h / 2 + 0.4
const courtyardStepOuterHalfWidth = pinToeHalfSpanX + 0.25
const courtyardStepInnerHalfHeight = pinRowSpanY / 2 + 0.25
const courtyardStepOuterHalfHeight = courtyardStepInnerHalfHeight + 0.2
Expand Down
58 changes: 35 additions & 23 deletions src/fn/sot223.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -89,32 +89,38 @@ export const sot223_4 = (parameters: z.infer<typeof sot223_def>) => {
const pads: AnyCircuitElement[] = []
let padOuterHalfWidth = 0
let padOuterHalfHeight = 0
const w = Number.parseFloat(parameters.w)
const h = Number.parseFloat(parameters.h)
const pl = Number.parseFloat(parameters.pl)
const p = Number.parseFloat(parameters.p)
const pw = Number.parseFloat(parameters.pw)

for (let i = 0; i < parameters.num_pins; i++) {
const { x, y } = get2CcwSot223Coords({
num_pins: parameters.num_pins,
pn: i + 1,
w: Number.parseFloat(parameters.w),
h: Number.parseFloat(parameters.h),
pl: Number.parseFloat(parameters.pl),
p: Number.parseFloat(parameters.p),
w,
h,
pl,
p,
})

const pinWidth = i === 3 ? 3.8 : Number.parseFloat(parameters.pw)
const pinLength = Number.parseFloat(parameters.pl)
const pinWidth = i === 3 ? 3.8 : pw
const pinLength = pl
const cornerRadius = Math.min(pinLength, pinWidth) / 8

padOuterHalfWidth = Math.max(padOuterHalfWidth, Math.abs(x) + pinLength / 2)
padOuterHalfHeight = Math.max(
padOuterHalfHeight,
Math.abs(y) + pinWidth / 2,
)
pads.push(rectpad(i + 1, x, y, pinLength, pinWidth))
pads.push(rectpad(i + 1, x, y, pinLength, pinWidth, cornerRadius))
}

const silkscreenRefText: SilkscreenRef = silkscreenRef(0, 0, 0.3)

const width = Number.parseFloat(parameters.w) / 2 - 2.4
const height = Number.parseFloat(parameters.h) / 2
const width = w / 2 - 2.4
const height = h / 2
const silkscreenPath1: PcbSilkscreenPath = {
layer: "top",
pcb_component_id: "",
Expand All @@ -140,8 +146,8 @@ export const sot223_4 = (parameters: z.infer<typeof sot223_def>) => {
stroke_width: 0.1,
}

const bodyHalfWidth = Number.parseFloat(parameters.w) / 2
const bodyHalfHeight = Number.parseFloat(parameters.h) / 2
const bodyHalfWidth = w / 2
const bodyHalfHeight = h / 2
const courtyardHalfWidth = Math.max(
padOuterHalfWidth + 0.25,
bodyHalfWidth + 0.15,
Expand Down Expand Up @@ -204,12 +210,14 @@ export const sot223_5 = (parameters: z.infer<typeof sot223_def>) => {
const pads: AnyCircuitElement[] = []
let padOuterHalfWidth = 0
let padOuterHalfHeight = 0
const w = Number.parseFloat(parameters.w)
const h = Number.parseFloat(parameters.h)
for (let i = 1; i <= parameters.num_pins; i++) {
const { x, y } = get2CcwSot2235Coords({
h: Number.parseFloat(parameters.h),
h,
p: 1.5,
pn: i,
w: Number.parseFloat(parameters.w),
w,
})

let pinWidth = Number.parseFloat(parameters.pw)
Expand All @@ -222,17 +230,18 @@ export const sot223_5 = (parameters: z.infer<typeof sot223_def>) => {
pinWidth = 1
pinLength = 2.2
}
const cornerRadius = Math.min(pinLength, pinWidth) / 8

padOuterHalfWidth = Math.max(padOuterHalfWidth, Math.abs(x) + pinLength / 2)
padOuterHalfHeight = Math.max(
padOuterHalfHeight,
Math.abs(y) + pinWidth / 2,
)
pads.push(rectpad(i, x, y, pinLength, pinWidth))
pads.push(rectpad(i, x, y, pinLength, pinWidth, cornerRadius))
}

const width = Number.parseFloat(parameters.w) / 2 - 2.4
const height = Number.parseFloat(parameters.h) / 2
const width = w / 2 - 2.4
const height = h / 2
const silkscreenPath1: PcbSilkscreenPath = {
layer: "top",
pcb_component_id: "",
Expand Down Expand Up @@ -260,8 +269,8 @@ export const sot223_5 = (parameters: z.infer<typeof sot223_def>) => {

const silkscreenRefText: SilkscreenRef = silkscreenRef(0, 0, 0.3)

const bodyHalfWidth = Number.parseFloat(parameters.w) / 2
const bodyHalfHeight = Number.parseFloat(parameters.h) / 2
const bodyHalfWidth = w / 2
const bodyHalfHeight = h / 2
const courtyardHalfWidth = Math.max(
padOuterHalfWidth + 0.25,
bodyHalfWidth + 0.15,
Expand Down Expand Up @@ -321,12 +330,14 @@ export const sot223_6 = (parameters: z.infer<typeof sot223_def>) => {
const pads: AnyCircuitElement[] = []
let padOuterHalfWidth = 0
let padOuterHalfHeight = 0
const h = Number.parseFloat(parameters.h)
const w = 8.7
for (let i = 1; i <= parameters.num_pins; i++) {
const { x, y } = get2CcwSot2236Coords({
h: Number.parseFloat(parameters.h),
h,
p: 1.3,
pn: i,
w: 8.7,
w,
})

let pinWidth = Number.parseFloat(parameters.pw)
Expand All @@ -339,17 +350,18 @@ export const sot223_6 = (parameters: z.infer<typeof sot223_def>) => {
pinWidth = 0.6
pinLength = 2.2
}
const cornerRadius = Math.min(pinLength, pinWidth) / 8

padOuterHalfWidth = Math.max(padOuterHalfWidth, Math.abs(x) + pinLength / 2)
padOuterHalfHeight = Math.max(
padOuterHalfHeight,
Math.abs(y) + pinWidth / 2,
)
pads.push(rectpad(i, x, y, pinLength, pinWidth))
pads.push(rectpad(i, x, y, pinLength, pinWidth, cornerRadius))
}

const width = Number.parseFloat(parameters.w) / 2 - 2.4
const height = Number.parseFloat(parameters.h) / 2
const height = h / 2
const silkscreenPath1: PcbSilkscreenPath = {
layer: "top",
pcb_component_id: "",
Expand Down Expand Up @@ -378,7 +390,7 @@ export const sot223_6 = (parameters: z.infer<typeof sot223_def>) => {
const silkscreenRefText: SilkscreenRef = silkscreenRef(0, 0, 0.3)

const bodyHalfWidth = Number.parseFloat(parameters.w) / 2
const bodyHalfHeight = Number.parseFloat(parameters.h) / 2
const bodyHalfHeight = h / 2
const courtyardHalfWidth = Math.max(
padOuterHalfWidth + 0.25,
bodyHalfWidth + 0.15,
Expand Down
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