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+//Example 2.6, Page Number 73
+//Saturation Current Density
+clc;
+nd=10**21 //Donor Concentration per meter cube
+na=10**22 //Acceptor Concentration per meter cube
+de=3.4*(10**-3) //Drift current-electron in meter square per second
+dh=1.2*(10**-3) //Drift current-holes in meter square per second
+le=7.1*(10**-4) //in meter
+lh=3.5*(10**-4) //in meter
+n=1.6*(10**16)  //per meter cube
+e=1.6*(10**-19)  //charge of an electron in coulomb
+A=10**6 //Junction area per unit area
+
+//Assuming all ions are ionized
+ni=2.56*(10**32)//per metre cube
+pn=(ni)/nd
+np=pn/10
+
+//From Equation 2.51a
+jo=e*((dh/lh)*pn+(de/le)*np) //Jo is the saturation current density
+
+io=jo/A //io is the reverse bias saturation current
+
+mprintf("P-N concentration is:%.2e per meter cube\n",pn) 
+mprintf("N-P concentration is:%.2e per meter cube\n",np)
+mprintf("The Saturation Current Density is:%.1e A/meter square\n",jo)
+mprintf("The Reverse Bias Saturation Current is:%.1e A\n",io)