Initial commit of public repository open_pdks.
diff --git a/sky130/sky130.json b/sky130/sky130.json
new file mode 100644
index 0000000..bf54238
--- /dev/null
+++ b/sky130/sky130.json
@@ -0,0 +1,53 @@
+#define DESCRIPTION Skywater 0.13um CMOS, local interconntect + high-resistance poly
+#ifdef METAL5
+#define OPTION1 + 5 metal layer backend stack
+#endif (METAL5)
+#ifdef MIM
+#define OPTION2 + MiM caps
+#endif (MIM)
+#ifdef REDISTRIBUTION
+#define OPTION3 + redistribution layer
+#endif (REDISTRIBUTION)
+{
+ "foundry" : "SW",
+ "foundry-name" : "SkyWater",
+ "node" : "TECHNAME",
+ "feature-size" : "130nm",
+ "status" : "active",
+ "description" : "DESCRIPTION OPTION1 OPTION2 OPTION3",
+ "options" : [
+#ifdef METAL5
+#undef METAL5
+#ifdef MIM || REDISTRIBUTION
+ "METAL5",
+#else (!(MIM || REDISTRIBUTION))
+ "METAL5"
+#endif (!(MIM || REDISTRIBUTION))
+#endif (METAL5)
+#ifdef MIM
+#undef MIM
+#ifdef REDISTRIBUTION
+ "MIM",
+#else
+ "MIM"
+#endif (REDISTRIBUTION)
+#endif (MIM)
+#ifdef REDISTRIBUTION
+#undef REDISTRIBUTION
+ "REDISTRIBUTION"
+#endif (REDISTRIBUTION)
+ ],
+ "stdcells" : [
+ "sky130_fd_sc_hd",
+ "sky130_fd_sc_hdll",
+ "sky130_fd_sc_hs",
+ "sky130_fd_sc_hvl",
+ "sky130_fd_sc_lp",
+ "sky130_fd_sc_ls",
+ "sky130_fd_sc_ms",
+ "sky130_osu130"
+ ],
+ "iocells" : [
+ "sky130_fd_io"
+ ]
+}
