diff --git a/chamsin/src/analogic/AnalogicalCommons.h b/chamsin/src/analogic/AnalogicalCommons.h
index 0cbbddb1..97444067 100644
--- a/chamsin/src/analogic/AnalogicalCommons.h
+++ b/chamsin/src/analogic/AnalogicalCommons.h
@@ -13,12 +13,6 @@
 // Macros Declaration.
 // *********************************************************************
 
-#define TRANSN 'N'
-#define TRANSP 'P'
-
-
-#define MAXNBCONTACT 8 
-
 #define IF_DEBUG_HUR_ANALOG \
  if(getenv("DEBUG_HUR_ANALOG")) {
 
diff --git a/chamsin/src/analogic/GenTrans.h b/chamsin/src/analogic/GenTrans.h
index bc6c39b6..ffbde722 100644
--- a/chamsin/src/analogic/GenTrans.h
+++ b/chamsin/src/analogic/GenTrans.h
@@ -188,28 +188,18 @@ class GenTrans {
 
 
 class GenV1Trans : public GenTrans {
-// *********************************
+    public:
+        typedef GenTrans Inherit;
 
-// Types
-// *****
-  public : typedef GenTrans Inherit;
+        const Transistor::MaskV1Info* _masqueV1Info;
+        static const int maxNbContacts = 8;
 
-// Attributs
-// *********
-  public : const Transistor::MaskV1Info* _masqueV1Info;
+        GenV1Trans(Transistor::MaskV1Info*);
 
-// Constructors
-// ************
-  public : GenV1Trans(Transistor::MaskV1Info*);
+        virtual ~GenV1Trans() {};
 
-// Destructors
-// ************
-  public : virtual ~GenV1Trans() {};
-
-// Operators
-// *********
-  public : virtual void Calculate(Transistor*) ;
-  public : virtual void Generate(Transistor*) ;
+        virtual void Calculate(Transistor*) ;
+        virtual void Generate(Transistor*) ;
   
 };
 
diff --git a/chamsin/src/analogic/GenV1Trans.cpp b/chamsin/src/analogic/GenV1Trans.cpp
index eb9cf823..8279a9dc 100644
--- a/chamsin/src/analogic/GenV1Trans.cpp
+++ b/chamsin/src/analogic/GenV1Trans.cpp
@@ -4,16 +4,16 @@
 // Date   : 04/04/2007 
 // ****************************************************************************************************
 
-#include "Collection.h"
-#include "RdsUnit.h"
-#include "GenTrans.h"
-#include "DtrAccess.h"
-
 #include "Technology.h"
 #include "UpdateSession.h"
-
 #include "DataBase.h"
 
+#include "RdsUnit.h"
+#include "DtrAccess.h"
+#include "AnalogicalCommons.h"
+#include "GenTrans.h"
+
+
 namespace Hurricane {
 
 
@@ -55,8 +55,8 @@ void GenV1Trans::Calculate(Transistor* transistor)
 	+ " of this transistor is invalid."
 	);
 
-  if(_masqueV1Info->getNbSourceColumn() < 1 || _masqueV1Info->getNbSourceColumn() > MAXNBCONTACT || 
-     _masqueV1Info->getNbDrainColumn() < 1 || _masqueV1Info->getNbDrainColumn() > MAXNBCONTACT ) 
+  if(_masqueV1Info->getNbSourceColumn() < 1 || _masqueV1Info->getNbSourceColumn() > GenV1Trans::maxNbContacts || 
+     _masqueV1Info->getNbDrainColumn() < 1 || _masqueV1Info->getNbDrainColumn() > GenV1Trans::maxNbContacts ) 
 
     throw Error("Can't launch function GenV1Trans::Calculate for " + getString(transistor) 
 	+ " the nbsourcecolumn " + getString(_masqueV1Info->getNbSourceColumn()) 
diff --git a/chamsin/src/analogic/MetaTransistor.cpp b/chamsin/src/analogic/MetaTransistor.cpp
index 6cd89c8d..402574b0 100644
--- a/chamsin/src/analogic/MetaTransistor.cpp
+++ b/chamsin/src/analogic/MetaTransistor.cpp
@@ -4,14 +4,13 @@
 // Date   : 21/12/2006 
 // ****************************************************************************************************
 
-
-#include "MetaTransistor.h"
-#include "Transistor.h"
-#include "Instances.h"
 #include "UpdateSession.h"
-#include "Vertical.h"
+using namespace Hurricane;
 
-namespace Hurricane {
+#include "Transistor.h"
+#include "MetaTransistor.h"
+
+namespace Chamsin {
 
 // ****************************************************************************************************
 // MetaTransistor implementation
@@ -86,9 +85,9 @@ void MetaTransistor::createLayout()
 
   setTerminal(false);
   
-  Transistor * internal_ref = NULL;
-  Transistor * left_ref = NULL;
-  Transistor * right_ref = NULL;
+  Transistor* internal_ref = NULL;
+  Transistor* left_ref = NULL;
+  Transistor* right_ref = NULL;
 
   for_each_instance(instance, this->getInstances())
      Cell * mastercell = instance->getMasterCell();
diff --git a/chamsin/src/analogic/MetaTransistor.h b/chamsin/src/analogic/MetaTransistor.h
index b35e5090..7d41b461 100644
--- a/chamsin/src/analogic/MetaTransistor.h
+++ b/chamsin/src/analogic/MetaTransistor.h
@@ -8,15 +8,11 @@
 #define HURRICANE_METATRANSISTOR
 
 #include "Cell.h"
+using namespace Hurricane;
 #include "AnalogicalCommons.h"
 
 namespace Hurricane {
 
-class Library; 
-class Name;
-class Symbol;
-class Record;
-
 class MetaTransistor: public Cell {
 // ********************************
 
diff --git a/chamsin/src/analogic/MetaTransistors.h b/chamsin/src/analogic/MetaTransistors.h
index 786abf96..f3067f37 100644
--- a/chamsin/src/analogic/MetaTransistors.h
+++ b/chamsin/src/analogic/MetaTransistors.h
@@ -10,8 +10,6 @@
 
 #include "Collection.h"
 
-BEGIN_NAMESPACE_HURRICANE
-
 class MetaTransistor;
 
 
@@ -53,7 +51,5 @@ typedef GenericFilter<MetaTransistor*> MetaTransistorFilter;
 
 
 
-END_NAMESPACE_HURRICANE
-
 #endif // HURRICANE_METATRANSISTORS
 
diff --git a/chamsin/src/analogic/Transistor.cpp b/chamsin/src/analogic/Transistor.cpp
index 77f24ba9..95607d08 100644
--- a/chamsin/src/analogic/Transistor.cpp
+++ b/chamsin/src/analogic/Transistor.cpp
@@ -4,16 +4,53 @@
 // Date   : 21/12/2006 
 // ****************************************************************************************************
 
-#include "AnalogicalCommons.h"
-#include "Transistor.h"
-#include "GenTrans.h"
-
 #include "Vertical.h"
 #include "Horizontal.h"
-
 #include "UpdateSession.h"
+using namespace Hurricane;
+
+#include "AnalogicalCommons.h"
+#include "GenTrans.h"
+
+#include "Transistor.h"
+
+namespace Chamsin {
+
+// ****************************************************************************************************
+// Transistor::Polarity implementation
+// ****************************************************************************************************
+
+Transistor::Polarity::Polarity(const Code& code) :_code(code)
+{}  
+
+
+Transistor::Polarity::Polarity(const Polarity& type) :_code(type._code)
+{}
+
+
+Transistor::Polarity& Transistor::Polarity::operator=(const Polarity& type) {
+  _code = type._code;
+  return *this;
+}  
+  
+
+string Transistor::Polarity::_getString() const {
+  switch(_code) {
+    case N : return "N";
+    case P : return "P";
+  }
+  return "ABNORMAL";
+}
+
+
+Record* Transistor::Polarity::_getRecord() const
+// *****************************************
+{
+   Record* record = new Record(getString(this));
+   record->Add(getSlot("Code", _code));
+   return record;
+}
 
-namespace Hurricane {
 
 // ****************************************************************************************************
 // Transistor::MaskVersion implementation
@@ -39,13 +76,6 @@ Transistor::MaskVersion& Transistor::MaskVersion::operator=(const MaskVersion& v
 }
 
 
-bool Transistor::MaskVersion::operator==(const MaskVersion& version) const
-// ***************************************************************************
-{
-   return _code==version._code; 
-}  
-
-
 string Transistor::MaskVersion::_getString() const
 // *************************************************
 {
@@ -228,20 +258,16 @@ Record* Transistor::MaskV1Info::_getRecord() const
 // Transistor implementation
 // ****************************************************************************************************
 
-Transistor::Transistor(Library* library, const Name& name, char type)
-// *******************************************************************
-:	Inherit(library, name),
-        _type(type),
-	_masqueInfo(NULL),
-	_genTrans(NULL)
-{
-}
+Transistor::Transistor(Library* library, const Name& name, const Polarity& polarity) :
+    Inherit(library, name),
+    _polarity(polarity),
+    _masqueInfo(NULL),
+    _genTrans(NULL)
+{}
 
 
-Transistor* Transistor::create(Library* library, const Name& name, char type)
-// **************************************************************************
-{
-	Transistor* transistor = new Transistor(library, name, type);
+Transistor* Transistor::create(Library* library, const Name& name, const Polarity& polarity) {
+	Transistor* transistor = new Transistor(library, name, polarity);
 
 	transistor->_postCreate();
 
@@ -250,9 +276,7 @@ Transistor* Transistor::create(Library* library, const Name& name, char type)
 
 
 
-void Transistor::_preDestroy()
-// ******************************
-{
+void Transistor::_preDestroy() {
    // Delete aggregated objets. 
    // *************************
    if(_masqueInfo)
@@ -281,19 +305,15 @@ void Transistor::_postCreate()
 }
 
 
-string Transistor::_getString() const
-// ***********************************
-{
+string Transistor::_getString() const {
      string s = Inherit::_getString();
-     s.insert(s.length()-1, " " + getString(_type));
+     s.insert(s.length()-1, " " + getString(_polarity));
      s.insert(s.length()-1, " " + getAbutmentType()._getString());
      return s;
 }
 
 
-Record* Transistor::_getRecord() const
-// ************************************
-{
+Record* Transistor::_getRecord() const {
 	Record* record = Inherit::_getRecord();
 	return record;
 }
@@ -440,15 +460,3 @@ void Transistor::duplicateLayout(Transistor* transistor)
 }  
 
 }
-
-// ****************************************************************************************************
-// Generic functions
-// ****************************************************************************************************
-
-string getString(const Hurricane::Transistor::MaskInfo& masqueinfo)
-// **********************************************************
-{
-  return masqueinfo._getString();
-}  
-
-
diff --git a/chamsin/src/analogic/Transistor.h b/chamsin/src/analogic/Transistor.h
index 718a709b..bd6fd3c6 100644
--- a/chamsin/src/analogic/Transistor.h
+++ b/chamsin/src/analogic/Transistor.h
@@ -8,30 +8,45 @@
 #define HURRICANE_TRANSISTOR
 
 #include "Cell.h"
-#include "AnalogicalCommons.h"
+using namespace Hurricane;
 
+#include "Transistors.h"
 
 namespace Hurricane {
 
-class Library; 
-class Name;
-class Symbol;
-class Record;
 class GenTrans;
 
+
+
 class Transistor : public Cell {
-// ********************************
 
 //#   if !defined(__DOXYGEN_PROCESSOR__)
 
 // Types
 // *****
 
-     public : typedef Cell Inherit; 
+     public: typedef Cell Inherit; 
+
+     public: class Polarity {
+                 public: enum Code {N=0, P=1}; 
+
+		 private: Code _code;
+
+		 public : Polarity(const Code& code=N);
+		 public : Polarity(const Polarity&);
+		 public : Polarity& operator=(const Polarity&);
+
+		 public : operator const Code& () const { return _code; };
+		 public : const Code& getCode() const { return _code; }; 
+
+		 public : string _getTypeName() const { return _TName("Transistor::Polarity"); }; 
+		 public : string _getString() const; 
+		 public : Record* _getRecord() const;
+             };
+
 
 
      public : class MaskVersion {
-	      // ******************
                 public : enum Code { VERSION1=0 };
 
 		private: Code _code;
@@ -40,8 +55,6 @@ class Transistor : public Cell {
 		public : MaskVersion(const MaskVersion&);
 		public : MaskVersion& operator=(const MaskVersion&);
 
-                public : bool operator==(const MaskVersion&) const; 
-
 		public : operator const Code& () const { return _code; };
 		public : const Code& getCode() const { return _code; }; 
 
@@ -173,7 +186,7 @@ class Transistor : public Cell {
 
 // Attributes
 // *******************
-    private : char _type; 
+    private : Polarity _polarity; 
     private : MaskInfo* _masqueInfo;	      
     private : GenTrans * _genTrans;	  
     //public : RealInfo * _realInfo;	      
@@ -185,10 +198,10 @@ class Transistor : public Cell {
 // Constructors
 // ************
 #   if !defined(__DOXYGEN_PROCESSOR__)
-    protected : Transistor(Library* library, const Name& name, char type);
+    protected : Transistor(Library* library, const Name& name, const Polarity& polarity);
 # endif 
 
-    public : static Transistor* create(Library* library, const Name& name, char type);		
+    public : static Transistor* create(Library* library, const Name& name, const Polarity& polarity);		
    
 #   if !defined(__DOXYGEN_PROCESSOR__)
     protected : virtual void _postCreate();
@@ -202,11 +215,11 @@ class Transistor : public Cell {
 
 // Accessors
 // *********	  
-    public : char getType() const { return _type; };
+    public : const Polarity& getPolarity() const { return _polarity; };
     public : MaskVersion getMaskVersion() const { return _getMaskInfoVersion(_masqueInfo); };
     public : const MaskInfo* getMaskInfo() const { return _masqueInfo; };
-    public : const double& getL() const { return _masqueInfo->getL(); };
-    public : const double& getW() const { return _masqueInfo->getW(); };
+    public : const double getL() const { return _masqueInfo->getL(); };
+    public : const double getW() const { return _masqueInfo->getW(); };
     public : const unsigned& getNbDrainColumn() const { return _masqueInfo->getNbDrainColumn(); };
     public : const unsigned& getNbSourceColumn() const { return _masqueInfo->getNbSourceColumn(); };
     public : const char* getDrainName() const  { return "DRAIN"; };
@@ -219,8 +232,8 @@ class Transistor : public Cell {
 
 // Predicats
 // *********
-    public : bool isNmos() const { return _type==TRANSN; };
-    public : bool isPmos() const { return _type==TRANSP; };
+    public : bool isNmos() const { return _polarity==Polarity::N; };
+    public : bool isPmos() const { return _polarity==Polarity::P; };
     public : bool isInternal() const { return getAbutmentType().getCode()==Type::INTERNAL; };
     public : bool isLeft() const     { return getAbutmentType().getCode()==Type::LEFT; };
     public : bool isRight() const    { return getAbutmentType().getCode()==Type::RIGHT; };
@@ -254,9 +267,40 @@ class Transistor : public Cell {
 
 
 }; 
+#if !defined(__DOXYGEN_PROCESSOR__)
+
+// -------------------------------------------------------------------
+// Class  :  "Proxy...<const Transistor::Polarity::Code*>".
+
+template<>
+  inline string  ProxyTypeName<Transistor::Polarity::Code>
+                              ( const Transistor::Polarity::Code* object )
+                              { return "<PointerSlotAdapter<Transistor::Polarity::Code>>"; }
+
+template<>
+  inline string  ProxyString  <Transistor::Polarity::Code>
+                              ( const Transistor::Polarity::Code* object )
+                              {
+                            switch ( *object ) {
+                                  case Transistor::Polarity::N: return "N";
+                                  case Transistor::Polarity::P: return "P";
+                                }
+                                return "ABNORMAL";
+                              }
+
+template<>
+  inline Record* ProxyRecord  <Transistor::Polarity::Code>
+                              ( const Transistor::Polarity::Code* object )
+                          {
+                                Record* record = new Record(getString(object));
+                                record->Add(getSlot("Code", (unsigned int*)object));
+                                return record;
+                          }
+
+
+
 
 
-#   if !defined(__DOXYGEN_PROCESSOR__)
 // -------------------------------------------------------------------
 // Class  :  "Proxy...<const Transistor::MaskVersion::Code*>".
 
@@ -269,7 +313,7 @@ template<>
   inline string  ProxyString  <Transistor::MaskVersion::Code>
                               ( const Transistor::MaskVersion::Code* object )
                               {
-                                switch ( *object ) {
+                            switch ( *object ) {
                                   case Transistor::MaskVersion::VERSION1: return "VERSION1";
                                 }
                                 return "ABNORMAL";
@@ -278,11 +322,11 @@ template<>
 template<>
   inline Record* ProxyRecord  <Transistor::MaskVersion::Code>
                               ( const Transistor::MaskVersion::Code* object )
-                              {
+                          {
                                 Record* record = new Record(getString(object));
                                 record->Add(getSlot("Code", (unsigned int*)object));
                                 return record;
-                              }
+                          }
 
 
 // -------------------------------------------------------------------
@@ -291,7 +335,7 @@ template<>
 template<>
   inline string  ProxyTypeName<Transistor::Type::Code>
                               ( const Transistor::Type::Code* object )
-                              { return "<PointerSlotAdapter<Transistor::Type::Code>>"; }
+                          { return "<PointerSlotAdapter<Transistor::Type::Code>>"; }
 
 template<>
   inline string  ProxyString  <Transistor::Type::Code>
@@ -309,7 +353,7 @@ template<>
 template<>
   inline Record* ProxyRecord  <Transistor::Type::Code>
                               ( const Transistor::Type::Code* object )
-                              {
+                          {
                                 Record* record = new Record(getString(object));
                                 record->Add(getSlot("Code", (unsigned int*)object));
                                 return record;
@@ -319,8 +363,8 @@ template<>
 #endif
 
 }
-
-
+ 
+ 
 
 // ****************************************************************************************************
 // Generic functions
@@ -329,4 +373,6 @@ template<>
 string getString(const Hurricane::Transistor::MaskInfo&);
 
 
+
+
 #endif // HURRICANE_TRANSISTOR
diff --git a/chamsin/src/analogic/Transistors.h b/chamsin/src/analogic/Transistors.h
index a95ae8b9..c806ce5c 100644
--- a/chamsin/src/analogic/Transistors.h
+++ b/chamsin/src/analogic/Transistors.h
@@ -12,7 +12,6 @@
 
 namespace Hurricane {
 
-
 class Transistor;
 
 
diff --git a/chamsin/src/device/TrMos.cpp b/chamsin/src/device/TrMos.cpp
index 1c203f04..bea0e560 100644
--- a/chamsin/src/device/TrMos.cpp
+++ b/chamsin/src/device/TrMos.cpp
@@ -5,7 +5,6 @@
 // ****************************************************************************************************
 
 
-#include "TrMos.h"
 
 #include "Instance.h"
 #include "MetaTransistor.h"
@@ -16,6 +15,8 @@
 #include "UpdateSession.h"
 
 #include "DtrAccess.h"
+
+#include "TrMos.h"
 using namespace Hurricane;
 
 
@@ -27,7 +28,7 @@ namespace DEVICE {
 
 TrMos::TrMos(Library* library, const Name& name):
     Inherit(library, name),
-    _type('N'),
+    _polarity(Transistor::Polarity::N),
     _isBsConnected(false),
     _m(1),
     _sourceIsFirst(true),
@@ -75,19 +76,14 @@ Transistors TrMos::getTransistors() const {
 }
 
 
-void TrMos::create(const char type, const bool isbsconnected)
-// **********************************************************
+void TrMos::create(const Transistor::Polarity& polarity, const bool isbsconnected)
 {
    if( _tr1 ) {
       throw Error("Can't Create Logical View of TrMos " +  getString(getName()) +
               " : " + "it has already been created"); 
    }
 
-   if( (type!=TRANSN) && (type!=TRANSP)) {
-      throw Error("Can't Create TrMos " +  getString(getName()) + " : type " + getString(type) + " is invalid"); 
-   }
-
-   _type = type;
+   _polarity = polarity;
    _isBsConnected = isbsconnected;
 
    // MetaTransistor is in the same library than Trmos
@@ -114,7 +110,7 @@ void TrMos::create(const char type, const bool isbsconnected)
    // The name of MetaTransistor is nameoftrmos_tr1
    // ****************************************************
 
-   _tr1 = MetaTransistor::create(library, Name( getString(getName())+"_Mos1" ), _type);
+   _tr1 = MetaTransistor::create(library, Name( getString(getName())+"_Mos1" ), _polarity);
    Instance * instance = Instance::create(this,
            Name("Ins_" + getString(_tr1->getName())),
            _tr1);
@@ -195,7 +191,7 @@ void TrMos::generate(const unsigned m, const bool sourceisfirst, const bool hasr
    for(unsigned i=0; i<m; i++){
      Transistor* finger = Transistor::create(library,
              getString(_tr1->getName()) + "_Finger_" + getString(i),
-             _type);
+             _polarity);
 
      _transistorList.push_back(finger);
      Instance::create(_tr1, Name("Ins_" + getString(finger->getName())), finger); 
diff --git a/chamsin/src/device/TrMos.h b/chamsin/src/device/TrMos.h
index 0bebf778..5ed8b894 100644
--- a/chamsin/src/device/TrMos.h
+++ b/chamsin/src/device/TrMos.h
@@ -7,34 +7,16 @@
 #ifndef DEVICE_TRMOS
 #define DEVICE_TRMOS
 
+#include "Net.h"
+using namespace Hurricane;
 
 #include "Device.h"
-#include "Transistors.h"
+#include "Transistor.h"
 #include "MetaTransistor.h"
 
 
-namespace Hurricane {
-
-  class Library;
-  class Name;
-  class Record;
-  class Transistor;
-
-  class Net;
-  class Pin;
-}
-
 namespace DEVICE {
 
-using Hurricane::Library;
-using Hurricane::Name;
-using Hurricane::Record;
-using Hurricane::MetaTransistor;
-using Hurricane::Transistor;
-using Hurricane::Transistors;
-using Hurricane::Net;
-using Hurricane::Pin;
-
 
 class TrMos : public Device {
 // **************************
@@ -51,7 +33,7 @@ class TrMos : public Device {
 
     // Structural parameter.
     // ********************
-    private  : char _type;
+    private  : Transistor::Polarity _polarity;
     private  : bool _isBsConnected;
     private  : unsigned _m;
 
@@ -100,13 +82,13 @@ class TrMos : public Device {
 #endif
 
 
-    public : void create(const char type, const bool isbsconnected);
+    public : void create(const Transistor::Polarity& polarity, const bool isbsconnected);
     public : void generate(const unsigned m, const bool sourceisfirst, const bool hasring,
 		 const unsigned nbsourcecolumn, const unsigned nbdraincolumn);
 
 // Accessors
 // *********	    
-    public : char getType() const { return _type; };  
+    public : const Transistor::Polarity& getPolarity() const { return _polarity; };  
     public : unsigned getM() const { return _m; };	     
     public : const double getWidthOfSourceWire() const { return _widthOfSourceWire; };	     
     public : const double getWidthOfDrainWire() const { return _widthOfDrainWire; };	     
diff --git a/chamsin/src/device/TrMos_PlaceRoute.cpp b/chamsin/src/device/TrMos_PlaceRoute.cpp
index d7401569..6ff6caa5 100644
--- a/chamsin/src/device/TrMos_PlaceRoute.cpp
+++ b/chamsin/src/device/TrMos_PlaceRoute.cpp
@@ -44,11 +44,11 @@ void TrMos::_PlaceAndRoute()
    // **************************************************************
    DtrAccess * dtraccess = DtrAccess::getDtrAccess(); 
 
-   char type;
-   if(_type == 'P') type = 'N'; 
-   else type = 'P';
+   Transistor::Polarity polarity;
+   if(_polarity == Transistor::Polarity::P) polarity = Transistor::Polarity::N; 
+   else polarity = Transistor::Polarity::P;
 
-   long minImpWidth       = dtraccess->getSingleRdsRuleByLabel("RW_", getString(type), "IMP"); 
+   long minImpWidth       = dtraccess->getSingleRdsRuleByLabel("RW_", getString(polarity), "IMP"); 
    long minContWidth      = dtraccess->getSingleRdsRuleByLabel(string("RW_CONT")); 
    long minAlu1Width      = dtraccess->getSingleRdsRuleByLabel(string("RW_ALU1")); 
    long minVia1Width      = dtraccess->getSingleRdsRuleByLabel(string("RW_VIA1")); 
@@ -57,7 +57,7 @@ void TrMos::_PlaceAndRoute()
    long rdActive          = dtraccess->getSingleRdsRuleByLabel(string("RD_ACTI")); 
    long rdAlu2            = dtraccess->getSingleRdsRuleByLabel(string("RD_ALU1")); 
 
-   long reImpActi         = dtraccess->getSingleRdsRuleByLabel("RE_", getString(type), "IMP_CONT"); 
+   long reImpActi         = dtraccess->getSingleRdsRuleByLabel("RE_", getString(polarity), "IMP_CONT"); 
    long reActiContact     = dtraccess->getSingleRdsRuleByLabel("RE_ACTI_CONT"); 
    long reAlu1Contact     = dtraccess->getSingleRdsRuleByLabel("RE_ALU1_CONT"); 
    long reAlu1Via1        = dtraccess->getSingleRdsRuleByLabel("RE_ALU1_VIA1"); 
@@ -235,7 +235,7 @@ void TrMos::_PlaceAndRoute()
 
    Layer * layerImp = NULL;
    
-   if(_type == 'P')  
+   if(_polarity == Transistor::Polarity::P)  
      layerImp  = db->getTechnology()->getLayer(Name("NIMP"));
    else 
      layerImp  = db->getTechnology()->getLayer(Name("PIMP"));
@@ -670,7 +670,7 @@ void TrMos::_PlaceAndRoute()
 
    // Create Caission NWELL if this is a PMOS.
    // ****************************************
-   if(_type == 'P') {
+   if(_polarity == Transistor::Polarity::P) {
        Net * netCaisson = Net::create(this, Name("CAISSON"));
        Contact::create(netCaisson, layerNwell
 	    , getAbutmentBox().getXCenter()