🚧 Automatic compilation of raw efabless PDKs into a gdsfactory-compatible PDK

.gitignore

@@ -144,3 +144,4 @@ cython_debug/
 *.DS_Store
 .DS_Store
 *Thumbs.db
+.idea/

.gitmodules

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+[submodule "sky130/src/sky130_fd_pr"]
+	path = sky130/src/sky130_fd_pr
+	url = https://github.com/efabless/skywater-pdk-libs-sky130_fd_pr.git
+[submodule "sky130/src/sky130_fd_sc_hd"]
+	path = sky130/src/sky130_fd_sc_hd
+	url = https://github.com/efabless/skywater-pdk-libs-sky130_fd_sc_hd.git

.python-version

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+sky130

docs/notebooks/intro.ipynb

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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "e4abbd64",
+   "metadata": {},
+   "source": [
+    "# Layout\n",
+    "\n",
+    "## Layout driven flow\n",
+    "\n",
+    "You can import the PDK and layout any of the standard cells"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "5a160bbd",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import gdsfactory as gf\n",
+    "from gdsfactory.config import rich_output\n",
+    "gf.config.rich_output()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "5b4ea2e4",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import sky130\n",
+    "import sky130.components as sc\n",
+    "import sky130.tech as st"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "2c622905",
+   "metadata": {},
+   "source": [
+    "If you want to see what are the cells available:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "a9b61cd7",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# sky130.cells"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "19872424",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# sky130.cross_sections"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "8ba69f30",
+   "metadata": {},
+   "source": [
+    "Let's explore the available layers:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ab318aea",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# help(gf.pdk)\n",
+    "# help(gf.get_active_pdk().get_layer_stack)\n",
+    "# gf.pdk.get_layer_stack()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "6414d6cb",
+   "metadata": {},
+   "source": [
+    "You can also verify this is the active PDK on `gdsfactory`:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "b7512a8b",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "gf.pdk.get_active_pdk().name"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "5747fd38",
+   "metadata": {},
+   "source": [
+    "Now, let's explore available symbols for the components:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "6a0f3119",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# dir(sky130)\n",
+    "sky130"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "f769dbb1",
+   "metadata": {},
+   "source": [
+    "Let's try exploring an example basic `nfet`:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "3e4a603c",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "c = sc.sky130_fd_pr__rf_nfet_01v8_aM02W1p65L0p15()\n",
+    "c"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "b03fd5c3",
+   "metadata": {},
+   "source": [
+    "Explore it's ports:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "bbb8ef08",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "c.ports"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "af7e5375",
+   "metadata": {},
+   "source": [
+    "We can also explore the digital cells:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "8946842c",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "c = sc.sky130_fd_sc_hd__a2111o_1()\n",
+    "c"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "d5d6f687",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "scene = c.to_3d()\n",
+    "scene.show()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "19a86bd4",
+   "metadata": {},
+   "source": [
+    "TODO: add Parametric cells natively into gdsfactory `sky130` pdk."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "5a72f996",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "c = gf.Component()\n",
+    "g1 = c << sc.sky130_fd_sc_hd__a2111o_1()\n",
+    "g2 = c << sc.sky130_fd_sc_hd__a311oi_4()\n",
+    "g2.move((15, 10))\n",
+    "c"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "90789eb4",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "c = gf.Component(\"demo_connect\")\n",
+    "g1 = c << sc.sky130_fd_sc_hd__a2111o_1()\n",
+    "g2 = c << sc.sky130_fd_sc_hd__a311oi_4()\n",
+    "g2.move((15, 10))\n",
+    "route = gf.routing.get_route_electrical(\n",
+    "    g1.ports[\"VPWR\"], g2.ports[\"VPWR\"], cross_section=st.xs_metal1\n",
+    ")\n",
+    "c.add(route.references)\n",
+    "c"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "da60090f",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "scene = c.to_3d()\n",
+    "scene.show()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "018d097d",
+   "metadata": {},
+   "source": [
+    "## Netlist driven flow\n",
+    "\n",
+    "For netlist driven flow you can define circuits for place and route. You have two options:\n",
+    "\n",
+    "1. in python\n",
+    "2. in YAML"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "e60fcf66",
+   "metadata": {},
+   "source": [
+    "## Spice simulations\n",
+    "\n",
+    "You can use `PySpice` for running simulations.\n",
+    "\n",
+    "gdsfactory can extract the netlist and simulate the circuit.\n",
+    "\n",
+    "TODO: add some relevant examples."
+   ]
+  }
+ ],
+ "metadata": {
+  "jupytext": {
+   "custom_cell_magics": "kql"
+  },
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}