*
* CD007 transistor parameters determined from experiment.
* Level=1 models VDD=5V, see CMOSedu.com
*                                                                   
.MODEL N_4007 NMOS LEVEL  = 1                  
+ TOX    = 17.6E-9                            
+ VTO    = 1                    
+ GAMMA  = 0.215                                
+ KP     = 7E-6                                 
*                                                                               
.MODEL P_4007 PMOS LEVEL  = 1                  
+ TOX    = 17.6E-9                            
+ VTO    = -0.75                    
+ GAMMA  = 0.123                                 
+ KP     = 4E-6