initial commit / add all books

10 files changed, 186 insertions, 0 deletions

diff --git a/3401/CH10/EX10.1/Ex10_1.sce b/3401/CH10/EX10.1/Ex10_1.sce
new file mode 100755
index 000000000..864eef9a7
--- /dev/null
+++ b/3401/CH10/EX10.1/Ex10_1.sce
@@ -0,0 +1,9 @@
+clc

+

+T=300 //K

+k=8.617*10**-5//eV/K

+e=1.6*10**-19 //C

+y=0.9967

+//NB/NC=z

+z=(1/y)-1

+disp(z,"NB/NE value is=")

diff --git a/3401/CH10/EX10.10/Ex10_10.sce b/3401/CH10/EX10.10/Ex10_10.sce
new file mode 100755
index 000000000..1de0d5066
--- /dev/null
+++ b/3401/CH10/EX10.10/Ex10_10.sce
@@ -0,0 +1,12 @@
+clc

+

+T=300 //K

+k=8.617*10**-5//eV/K

+e=1.6*10**-19 //C

+alphaF=0.99

+alphaR=0.20

+Ic=1//mA

+IB=0.050//mA

+

+Vcesat=k*T*log(((Ic*(1-alphaR)+IB)*alphaF)/((alphaF*IB-(1-alphaF)*Ic)*alphaR))

+disp(Vcesat,"VCEsat in V is=")

diff --git a/3401/CH10/EX10.12/Ex10_12.sce b/3401/CH10/EX10.12/Ex10_12.sce
new file mode 100755
index 000000000..8629a6fa0
--- /dev/null
+++ b/3401/CH10/EX10.12/Ex10_12.sce
@@ -0,0 +1,33 @@
+clc

+

+T=300 //K

+k=8.617*10**-5//eV/K

+e=1.6*10**-19 //C

+IE=1*10^-3//A

+Cje=1*10^-12//F

+xB=0.5*10^-4//cm

+Dn=25// cm2/s

+xdc=2.4*10^-4//cm

+vs=10^7

+rc=20//ohm

+Cu=0.1*10^-12//F

+Cs=0.1*10^-12//F

+beta=100

+

+re1=(k*T)/IE

+disp(re1,"re1 in ohm is=")

+taue=re1*Cje

+disp(taue,"taue in sec is=")

+taub=xB^2/(2*Dn)

+disp(taub,"taub in sec is=")

+taub1=xdc/vs

+disp(taub1,"taub in sec is=")

+tauc=rc*(Cu+Cs)

+disp(tauc,"tauc in sec is=")

+tauec=taue+taub+taub1+tauc

+disp(tauec,"tauec in sec is=")

+ftau=1/(2*%pi*tauec)

+disp(ftau,"ftau in GHz is=")

+fbeta=ftau/beta

+disp(fbeta,"fbeta in Hz is=")

+

diff --git a/3401/CH10/EX10.2/Ex10_2.sce b/3401/CH10/EX10.2/Ex10_2.sce
new file mode 100755
index 000000000..07597db1c
--- /dev/null
+++ b/3401/CH10/EX10.2/Ex10_2.sce
@@ -0,0 +1,16 @@
+clc

+

+T=300 //K

+k=8.617*10**-5//eV/K

+e=1.6*10**-19 //C

+DB=10//cm^2/s

+tauB0=10^-7//sec

+alphatau=0.9967

+//(xB/LB)=z

+z=acosh(1/alphatau)

+disp(z,"xB/LB is=")

+

+LB=sqrt(DB*tauB0)

+disp(LB,"LB in cm is=")

+xB=z*10^-4

+disp(xB,"xB in meter is=")

diff --git a/3401/CH10/EX10.3/Ex10_3.sce b/3401/CH10/EX10.3/Ex10_3.sce
new file mode 100755
index 000000000..33d4bccf0
--- /dev/null
+++ b/3401/CH10/EX10.3/Ex10_3.sce
@@ -0,0 +1,11 @@
+clc

+

+T=300 //K

+k=8.617*10**-5//eV/K

+e=1.6*10**-19 //C

+Js0=10^-11//A/cm^2

+Jr0=10^-8//A/cm^2

+delta=0.9967

+VBE=2*k*T*log(delta*10^3/(1-delta))

+disp(VBE,"VBE in V is=")

+

diff --git a/3401/CH10/EX10.4/Ex10_4.sce b/3401/CH10/EX10.4/Ex10_4.sce
new file mode 100755
index 000000000..0b1e78ed8
--- /dev/null
+++ b/3401/CH10/EX10.4/Ex10_4.sce
@@ -0,0 +1,32 @@
+clc

+

+T=300 //K

+k=8.617*10**-5//eV/K

+e=1.6*10**-19 //C

+DE=10//cm^2/s

+DB=25//cm^2/s

+xB=0.70*10^-6//m

+xE=0.50*10^-6//m

+NE=1*10^18//cm^-3

+NB=1*10^16//cm^-3

+VBE=0.65//V

+tauB0=5*10^-7//s

+tauE0=1*10^-7//s

+Jr0=5*10^-8//A/cm62

+pE0=2.25*10^2//cm^-3

+nB0=2.25*10^4//cm^-3

+LE=10^-3//cm

+LB=3.54*10^-3//cm

+

+gamma1=1/(1+(pE0*DE*LB*tanh(0.0198))/(nB0*DB*LE*tanh(0.050)))

+disp(gamma1,"gamma1 is=")

+alphatau=1/cosh(xB/LB)

+disp(alphatau,"alphatau is=")

+Js0=(e*DB*nB0)/(LB*tanh(xB/LB))

+disp(Js0,"Js0 is A/cm^2")

+delta=1/(1+(Jr0/Js0)*exp(-VBE/(2*0.0259)))

+disp(delta,"delta is=")

+a=gamma1*alphatau*delta

+disp(a,"a is=")

+beta1=a/(1-a)

+disp(beta1,"beta1 is=")//          ans varies cause of long no.of digits

diff --git a/3401/CH10/EX10.5/Ex10_5.sce b/3401/CH10/EX10.5/Ex10_5.sce
new file mode 100755
index 000000000..83b7f4dfe
--- /dev/null
+++ b/3401/CH10/EX10.5/Ex10_5.sce
@@ -0,0 +1,29 @@
+clc

+

+T=300 //K

+k=8.617*10**-5//eV/K

+e=1.6*10**-19 //C

+NB=5*10^16//cm^-3

+NC=2*10^15//cm^-3

+epsilons=11.7

+eps=8.85*10^-14 //V

+ni=1.5*10**10 //cm^-3

+x=0.70*10^-6

+a=9.96*10^-12///solving the equation

+Vbi=((k*T))*log((NB*NC)/ni^2)

+disp(Vbi,"Vbi in V is=")

+

+//for 

+VCB=2 //V

+xdB1=sqrt(a*(Vbi+VCB))

+disp(xdB1,"xdB in meter is=")

+xB1=x-xdB1

+disp(xB1,"xB in meter is=")//        textbook ans are wrong

+

+//for 

+VCB=10 //V

+xdB2=sqrt(a*(Vbi+VCB))

+disp(xdB2,"xdB in meter is=")

+xB2=x-xdB2

+disp(xB2,"xB in meter is=")//        textbook ans are wrong

+

diff --git a/3401/CH10/EX10.7/Ex10_7.sce b/3401/CH10/EX10.7/Ex10_7.sce
new file mode 100755
index 000000000..6c3bd0f68
--- /dev/null
+++ b/3401/CH10/EX10.7/Ex10_7.sce
@@ -0,0 +1,16 @@
+clc

+

+T=300// K

+k=1.3806*10^-23// JK^-1

+e=1.6*10^-19// eV

+ni=1.5*10^10// cm^-3

+NE=10^18// cm^-3

+pE01=(ni*ni)/NE// neglecting bandgap

+disp(pE01,"pE01 the value of pE01 in cm^-3 is")

+NE=10^19// cm^-3

+pE03=(ni*ni)/NE// neglecting bandgap

+disp(pE03,"pE03 the value of pE03 in cm^-3 is")

+pE02=((ni*ni)/NE)*exp(0.030/(k*(T/e)))// including bandgap

+disp(pE02,"pE02 the value of pE02 in cm^-3 is")

+pE04=((ni*ni)/NE)*exp(0.1/(k*(T/e)))// including bandgap

+disp(pE04,"pE04 the value of pE04 in cm^-3 is")

diff --git a/3401/CH10/EX10.8/Ex10_8.sce b/3401/CH10/EX10.8/Ex10_8.sce
new file mode 100755
index 000000000..f18313bb7
--- /dev/null
+++ b/3401/CH10/EX10.8/Ex10_8.sce
@@ -0,0 +1,17 @@
+clc

+

+T=300// K

+k=1.3806*10^-23// JK^-1

+e=1.6*10^-19// eV

+epsilon=8.85*10^-14 //V

+eps=11.7

+NB=10^16//cm^-3

+Vpt=25//V

+WB=0.5*10^-4

+

+

+//Vpt=(e*WB^2*NB*(NC+NB))/(2*epsilon*eps*NC)

+a=(Vpt*2*epsilon*eps)/(e*WB^2*NB)

+disp(a)

+NC=NB/(a-1)

+disp(NC,"NC in cm^-3 is=")

diff --git a/3401/CH10/EX10.9/Ex10_9.sce b/3401/CH10/EX10.9/Ex10_9.sce
new file mode 100755
index 000000000..e8dd0ef64
--- /dev/null
+++ b/3401/CH10/EX10.9/Ex10_9.sce
@@ -0,0 +1,11 @@
+clc

+

+T=300 //K

+k=8.617*10**-5//eV/K

+e=1.6*10**-19 //C

+NB=10^17//cm^-3

+beta=100

+BVCEO=15//V

+

+BVCBO=(beta)^(1/3)*BVCEO

+disp(BVCBO,"in V is=")