diff --git a/18T_hs/lib/sky130_osu_sc_18T_hs_TT_1P8_25C.ccs.lib b/18T_hs/lib/sky130_osu_sc_18T_hs_TT_1P8_25C.ccs.lib
index 2a217e1..a60ba14 100644
--- a/18T_hs/lib/sky130_osu_sc_18T_hs_TT_1P8_25C.ccs.lib
+++ b/18T_hs/lib/sky130_osu_sc_18T_hs_TT_1P8_25C.ccs.lib
@@ -247441,4 +247441,123 @@
       fall_capacitance_range (0.0073907, 0.0103824);
     }
   }
+  cell (sky130_osu_sc_18T_hs__ant) {
+    area : 6.5934;
+    cell_footprint : "sky130_osu_sc_18T_hs_";
+    cell_leakage_power : 408733;
+    pg_pin (GND) {
+      pg_type : primary_ground;
+      voltage_name : "GND";
+    }
+    pg_pin (VDD) {
+      pg_type : primary_power;
+      voltage_name : "VDD";
+    }
+    leakage_power () {
+      value : 0;
+      when : "A";
+      related_pg_pin : GND;
+    }
+    leakage_power () {
+      value : 6.80516e-05;
+      when : "A";
+      related_pg_pin : VDD;
+    }
+    leakage_power () {
+      value : 0;
+      when : "!A";
+      related_pg_pin : GND;
+    }
+    leakage_power () {
+      value : 817467;
+      when : "!A";
+      related_pg_pin : VDD;
+    }
+    leakage_power () {
+      value : 0;
+      related_pg_pin : GND;
+    }
+    leakage_power () {
+      value : 408733;
+      related_pg_pin : VDD;
+    }
+    pin (A) {
+      direction : input;
+      related_power_pin : VDD;
+      capacitance : 0.916996;
+      rise_capacitance : 0.90973;
+      rise_capacitance_range (0.000135963, 0.90973);
+      fall_capacitance : 0.916996;
+      fall_capacitance_range (0.00241029, 0.916996);
+      receiver_capacitance () {
+        receiver_capacitance1_rise (receiver_cap_power_template) {
+          index_1 ("0.001, 0.00630957, 0.0398107, 0.251189, 1.58489,
+10");
+          values ( \
+            "0.00152669, 0.00123984, -0.00464581, -0.0447933, -0.295021,
+-1.85615" \
+          );
+        }
+        receiver_capacitance2_rise (receiver_cap_power_template) {
+          index_1 ("0.001, 0.00630957, 0.0398107, 0.251189, 1.58489,
+10");
+          values ( \
+            "0.00242036, 0.00364409, 0.00401322, 0.000926618,
+-0.00142953, -0.0192439" \
+          );
+        }
+        receiver_capacitance1_fall (receiver_cap_power_template) {
+          index_1 ("0.001, 0.00630957, 0.0398107, 0.251189, 1.58489,
+10");
+          values ( \
+            "0.00183673, 0.00325572, 0.00416685, 0.00574206, 0.0080679,
+0.0184597" \
+          );
+        }
+        receiver_capacitance2_fall (receiver_cap_power_template) {
+          index_1 ("0.001, 0.00630957, 0.0398107, 0.251189, 1.58489,
+10");
+          values ( \
+            "0.00284305, 0.00412755, 0.00743581, 0.0315314, 0.165331,
+0.99951" \
+          );
+        }
+      }
+      internal_power () {
+        related_pg_pin : GND;
+        rise_power (passive_power_template) {
+          index_1 ("0.001, 0.00630957, 0.0398107, 0.251189, 1.58489,
+10");
+          values ( \
+            "0, 0, 0, 0, 0, 0" \
+          );
+        }
+        fall_power (passive_power_template) {
+          index_1 ("0.001, 0.00630957, 0.0398107, 0.251189, 1.58489,
+10");
+          values ( \
+            "0, 0, 0, 0, 0, 0" \
+          );
+        }
+      }
+      internal_power () {
+        related_pg_pin : VDD;
+        rise_power (passive_power_template) {
+          index_1 ("0.001, 0.00630957, 0.0398107, 0.251189, 1.58489,
+10");
+          values ( \
+            "-0.00478962, -0.00343355, 0.00221312, 0.0363652, 0.240219,
+1.51341" \
+          );
+        }
+        fall_power (passive_power_template) {
+          index_1 ("0.001, 0.00630957, 0.0398107, 0.251189, 1.58489,
+10");
+          values ( \
+            "7.11817, 7.11582, 7.09859, 6.98932, 6.28423, 1.82473" \
+          );
+        }
+      }
+    }
+  }
 }