2 files changed, 28 insertions, 0 deletions
diff --git a/3636/CH3/EX3.13/Ex3_13.sce b/3636/CH3/EX3.13/Ex3_13.sce
new file mode 100644
index 000000000..ff9c4dfbf
--- /dev/null
+++ b/3636/CH3/EX3.13/Ex3_13.sce
@@ -0,0 +1,25 @@
+clc;
+clear;
+E_fi=0.35 //in eV
+ni=1.5*10^10 //in cm^-3
+q=1.6*10^-19 //in eV
+myu_n=1400 //in cm^2/Vs
+myu_p=500 //in cm^2/Vs
+Const=0.0259 //constant value for kT in eV
+
+//Calculation
+//a)
+n0=ni*exp((E_fi)/Const)
+
+//c)
+//doped substrate
+sigma=q*(myu_n*n0) //in ohm^-1 cm^-1
+rho=1/sigma
+
+//undoped substrate
+sigma1=q*(ni*(myu_n+myu_p))
+rho1=1/sigma1
+
+mprintf("a)Doping value= %1.3e cm^-3\n",n0)
+mprintf("c)resistivity of the doped pieces of silicon= %.4f ohm-cm\n",rho)
+mprintf("c)resistivity of the undoped pieces of silicon= %.1e ohm-cm",rho1) //The answers vary due to round off error
diff --git a/3636/CH3/EX3.13/Ex3_13.txt b/3636/CH3/EX3.13/Ex3_13.txt
new file mode 100644
index 000000000..dbcbf2b17
--- /dev/null
+++ b/3636/CH3/EX3.13/Ex3_13.txt
@@ -0,0 +1,3 @@
+ a)Doping value= 1.109e+16 cm^-3
+c)resistivity of the doped pieces of silicon= 0.4025 ohm-cm
+c)resistivity of the undoped pieces of silicon= 2.2e+05 ohm-cm ohm-cm 
+\ No newline at end of file