Edges for routing

Adding proper ports for routing

contact.py

@@ -109,10 +109,7 @@ class ViaStripe(LibrePDKStructure):
 
 		lid = self.config.get_layer_id("metal"+str(toplayer))
 
-		pad = gf.components.rectangle(size=s, layer=lid)
-		self << pad
-
-		rect = compass(size=s, layer=lid)
-		rect = rect.move([-rect.xmin,-rect.ymin])
-		c_ref = self.add_ref(rect)
+		pad = gf.components.pad(size=s, layer=lid)
+		pad = pad.move([-pad.xmin,-pad.ymin])
+		c_ref = self.add_ref(pad)
 		self.add_ports(c_ref.ports)