diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_hvc_clamped_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_hvc_clamped_pad.lef
index e76b827..e2aac81 100644
--- a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_hvc_clamped_pad.lef
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_hvc_clamped_pad.lef
@@ -3,7 +3,7 @@
   DIVIDERCHAR "/" ;
   BUSBITCHARS "[]" ;
 MACRO sky130_ef_io__vssa_hvc_clamped_pad
-  CLASS PAD GROUND ;
+  CLASS PAD POWER ;
   FOREIGN sky130_ef_io__vssa_hvc_clamped_pad ;
   ORIGIN 0.000 0.000 ;
   SIZE 75.000 BY 197.965 ;
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_hvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_hvc_pad.lef
index 813a814..e3b0a9f 100644
--- a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_hvc_pad.lef
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_hvc_pad.lef
@@ -3,7 +3,7 @@
   DIVIDERCHAR "/" ;
   BUSBITCHARS "[]" ;
 MACRO sky130_ef_io__vssa_hvc_pad
-  CLASS PAD GROUND ;
+  CLASS PAD POWER ;
   FOREIGN sky130_ef_io__vssa_hvc_pad ;
   ORIGIN 0.000 0.000 ;
   SIZE 75.000 BY 197.965 ;
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_lvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_lvc_pad.lef
index b49e889..caa60e8 100644
--- a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_lvc_pad.lef
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssa_lvc_pad.lef
@@ -3,7 +3,7 @@
   DIVIDERCHAR "/" ;
   BUSBITCHARS "[]" ;
 MACRO sky130_ef_io__vssa_lvc_pad
-  CLASS PAD GROUND ;
+  CLASS PAD POWER ;
   FOREIGN sky130_ef_io__vssa_lvc_pad ;
   ORIGIN 0.000 0.000 ;
   SIZE 75.000 BY 197.965 ;
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_hvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_hvc_pad.lef
index e75027c..b5ca42f 100644
--- a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_hvc_pad.lef
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_hvc_pad.lef
@@ -3,7 +3,7 @@
   DIVIDERCHAR "/" ;
   BUSBITCHARS "[]" ;
 MACRO sky130_ef_io__vssd_hvc_pad
-  CLASS PAD GROUND ;
+  CLASS PAD POWER ;
   FOREIGN sky130_ef_io__vssd_hvc_pad ;
   ORIGIN 0.000 0.000 ;
   SIZE 75.000 BY 197.965 ;
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_clamped2_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_clamped2_pad.lef
index e3ccead..d4484dd 100644
--- a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_clamped2_pad.lef
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_clamped2_pad.lef
@@ -3,7 +3,7 @@
   DIVIDERCHAR "/" ;
   BUSBITCHARS "[]" ;
 MACRO sky130_ef_io__vssd_lvc_clamped2_pad
-  CLASS PAD GROUND ;
+  CLASS PAD POWER ;
   FOREIGN sky130_ef_io__vssd_lvc_clamped2_pad ;
   ORIGIN 0.000 0.000 ;
   SIZE 75.000 BY 197.965 ;
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_clamped_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_clamped_pad.lef
index bd4fd91..f22ce8f 100644
--- a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_clamped_pad.lef
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_clamped_pad.lef
@@ -3,7 +3,7 @@
   DIVIDERCHAR "/" ;
   BUSBITCHARS "[]" ;
 MACRO sky130_ef_io__vssd_lvc_clamped_pad
-  CLASS PAD GROUND ;
+  CLASS PAD POWER ;
   FOREIGN sky130_ef_io__vssd_lvc_clamped_pad ;
   ORIGIN 0.000 0.000 ;
   SIZE 75.000 BY 197.965 ;
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_pad.lef
index 2ca6eb3..5d88f78 100644
--- a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_pad.lef
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssd_lvc_pad.lef
@@ -3,7 +3,7 @@
   DIVIDERCHAR "/" ;
   BUSBITCHARS "[]" ;
 MACRO sky130_ef_io__vssd_lvc_pad
-  CLASS PAD GROUND ;
+  CLASS PAD POWER ;
   FOREIGN sky130_ef_io__vssd_lvc_pad ;
   ORIGIN 0.000 0.000 ;
   SIZE 75.000 BY 197.965 ;
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_hvc_clamped_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_hvc_clamped_pad.lef
index e372dbf..d55543a 100644
--- a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_hvc_clamped_pad.lef
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_hvc_clamped_pad.lef
@@ -3,7 +3,7 @@
   DIVIDERCHAR "/" ;
   BUSBITCHARS "[]" ;
 MACRO sky130_ef_io__vssio_hvc_clamped_pad
-  CLASS PAD GROUND ;
+  CLASS PAD POWER ;
   FOREIGN sky130_ef_io__vssio_hvc_clamped_pad ;
   ORIGIN 0.000 0.000 ;
   SIZE 75.000 BY 197.965 ;
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_hvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_hvc_pad.lef
index 0af00c3..0ce4763 100644
--- a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_hvc_pad.lef
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_hvc_pad.lef
@@ -3,7 +3,7 @@
   DIVIDERCHAR "/" ;
   BUSBITCHARS "[]" ;
 MACRO sky130_ef_io__vssio_hvc_pad
-  CLASS PAD GROUND ;
+  CLASS PAD POWER ;
   FOREIGN sky130_ef_io__vssio_hvc_pad ;
   ORIGIN 0.000 0.000 ;
   SIZE 75.000 BY 197.965 ;
diff --git a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_lvc_pad.lef b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_lvc_pad.lef
index c9980dd..eaf4fd1 100644
--- a/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_lvc_pad.lef
+++ b/sky130/custom/sky130_fd_io/lef/sky130_ef_io__vssio_lvc_pad.lef
@@ -3,7 +3,7 @@
   DIVIDERCHAR "/" ;
   BUSBITCHARS "[]" ;
 MACRO sky130_ef_io__vssio_lvc_pad
-  CLASS PAD GROUND ;
+  CLASS PAD POWER ;
   FOREIGN sky130_ef_io__vssio_lvc_pad ;
   ORIGIN 0.000 0.000 ;
   SIZE 75.000 BY 197.965 ;
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_clamped_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_clamped_pad.mag
index 810b2f3..05270eb 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_clamped_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_clamped_pad.mag
@@ -216,6 +216,6 @@
 flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
 port 1 nsew signal bidirectional
 << properties >>
-string LEFclass PAD GROUND
+string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
 << end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_pad.mag
index 4797656..40224e4 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_hvc_pad.mag
@@ -541,6 +541,6 @@
 flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
 port 1 nsew signal bidirectional
 << properties >>
-string LEFclass PAD GROUND
+string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
 << end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_lvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_lvc_pad.mag
index 2a78a14..e332ed5 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_lvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssa_lvc_pad.mag
@@ -885,6 +885,6 @@
 flabel metal5 s 6339 32546 10468 33417 0 FreeSans 2000 0 0 0 VSSA
 port 9 nsew ground bidirectional
 << properties >>
-string LEFclass PAD GROUND
+string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
 << end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_hvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_hvc_pad.mag
index 121c696..31feb15 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_hvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_hvc_pad.mag
@@ -539,6 +539,6 @@
 flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
 port 1 nsew signal bidirectional
 << properties >>
-string LEFclass PAD GROUND
+string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
 << end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_clamped2_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_clamped2_pad.mag
index 538687f..6fdbdbd 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_clamped2_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_clamped2_pad.mag
@@ -217,6 +217,6 @@
 flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
 port 1 nsew signal bidirectional
 << properties >>
-string LEFclass PAD GROUND
+string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
 << end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_clamped_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_clamped_pad.mag
index 6d500ac..df36e97 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_clamped_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_clamped_pad.mag
@@ -217,6 +217,6 @@
 flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
 port 1 nsew signal bidirectional
 << properties >>
-string LEFclass PAD GROUND
+string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
 << end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_pad.mag
index 9e8e8b4..6c107b5 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssd_lvc_pad.mag
@@ -888,6 +888,6 @@
 flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
 port 1 nsew signal bidirectional
 << properties >>
-string LEFclass PAD GROUND
+string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
 << end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_clamped_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_clamped_pad.mag
index 8b846a3..92ea340 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_clamped_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_clamped_pad.mag
@@ -217,6 +217,6 @@
 flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
 port 1 nsew signal bidirectional
 << properties >>
-string LEFclass PAD GROUND
+string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
 << end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_pad.mag
index 2d23576..098a1ec 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_hvc_pad.mag
@@ -542,6 +542,6 @@
 flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
 port 1 nsew signal bidirectional
 << properties >>
-string LEFclass PAD GROUND
+string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
 << end >>
diff --git a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_lvc_pad.mag b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_lvc_pad.mag
index 4fa1d2a..fb1fc2a 100644
--- a/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_lvc_pad.mag
+++ b/sky130/custom/sky130_fd_io/mag/sky130_ef_io__vssio_lvc_pad.mag
@@ -885,6 +885,6 @@
 flabel metal4 s 0 9266 254 9862 3 FreeSans 520 0 0 0 AMUXBUS_B
 port 1 nsew signal bidirectional
 << properties >>
-string LEFclass PAD GROUND
+string LEFclass PAD POWER
 string FIXED_BBOX 0 0 15000 39593
 << end >>