Dynamic Component

<apex:dynamicComponent ComponentValue="{!ComponentData}"/>             

public class MyController 

{

public transient ApexPages.Component ComponentData { get; private set; }

public MyController() 

{ 

Type t = Type.forName('Component.c.MyCustomComponent');

if(t != null) 

{ 

this.ComponentData = (ApexPages.Component)t.newInstance(); 

}

} 

}