1 files changed, 19 insertions, 0 deletions
diff --git a/3636/CH9/EX9.2/Ex9_2.sce b/3636/CH9/EX9.2/Ex9_2.sce
new file mode 100644
index 000000000..278c8e394
--- /dev/null
+++ b/3636/CH9/EX9.2/Ex9_2.sce
@@ -0,0 +1,19 @@
+clc;
+clear;
+e=1.6*10^-19 //in eV
+epsilon_r=13.1 //in F/cm
+epsilon_0=8.85*10^-14 //in F/cm
+Nc=4.7*10^17 //in cm^-3
+Nd=3*10^15 //in cm^-3
+phi_Bn=0.9 //barrier height in V
+VT=0.3 //threshold voltage in V
+Const=0.026 //constant for kT/e in V
+
+//Calculation
+phi_n=Const*log(Nc/Nd) //in V
+Vbi=phi_Bn-phi_n //built-in voltage in V
+Vp=Vbi-VT //pinch-off voltage in V
+d=sqrt((2*epsilon_r*epsilon_0*Vp)/(e*Nd))
+
+mprintf("Channel thickness= %0.2e m",d)
+//The answer provided in the textbook is wrong