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+// Example 6.3 : Comparison between NMOS transistor and npn transistor
+// For npn transistor
+disp("For npn transistor")
+I_C=10*10^-6; // (A)
+V_T=0.025; // (V)
+V_A=35; // (V)
+C_jeO=5*10^-15; // (F)
+C_uO=5*10^-15; // (F)
+C_L=1*10^-12; // (F)
+disp("The data calculated for I_C=10uA")
+g_m=I_C/V_T;
+disp(g_m,"g_m (A/V)")
+r_o=V_A/I_C;
+disp(r_o,"r_o (ohm)")
+A_O=V_A/V_T;
+disp(A_O,"A_O (V/V)")
+T_F=10*10^-12;
+C_de=T_F*g_m;
+disp(C_de,"C_de (F)")
+C_je=2*C_jeO;
+disp(C_je,"C_je (F)")
+C_pi=C_de+C_je;
+disp(C_pi,"C_pi (F)")
+C_u=C_uO;
+disp(C_u,"C_u (F)")
+f_T=g_m/(2*%pi*(C_pi+C_u));
+disp(f_T,"f_T (Hz)")
+f_t=g_m/(2*%pi*C_L);
+disp(f_t,"f_t (Hz)")
+disp("The data calculated for I_C=100uA")
+I_C=100*10^-6;
+g_m=I_C/V_T;
+disp(g_m,"g_m (A/V)")
+r_o=V_A/I_C;
+disp(r_o,"r_o (ohm)")
+A_O=V_A/V_T;
+disp(A_O,"A_O (V/V)")
+T_F=10*10^-12;
+C_de=T_F*g_m;
+disp(C_de,"C_de (F)")
+C_je=2*C_jeO;
+disp(C_je,"C_je (F)")
+C_pi=C_de+C_je;
+disp(C_pi,"C_pi (F)")
+C_u=C_uO;
+disp(C_u,"C_u (F)")
+f_T=g_m/(2*%pi*(C_pi+C_u));
+disp(f_T,"f_T (Hz)")
+f_t=g_m/(2*%pi*C_L);
+disp(f_t,"f_t (Hz)")
+disp("The data calculated for I_C=1mA")
+I_C=1*10^-3;
+g_m=I_C/V_T;
+disp(g_m,"g_m (A/V)")
+r_o=V_A/I_C;
+disp(r_o,"r_o (ohm)")
+A_O=V_A/V_T;
+disp(A_O,"A_O (V/V)")
+T_F=10*10^-12;
+C_de=T_F*g_m;
+disp(C_de,"C_de (F)")
+C_je=2*C_jeO;
+disp(C_je,"C_je (F)")
+C_pi=C_de+C_je;
+disp(C_pi,"C_pi (F)")
+C_u=C_uO;
+disp(C_u,"C_u (F)")
+f_T=g_m/(2*%pi*(C_pi+C_u));
+disp(f_T,"f_T (Hz)")
+f_t=g_m/(2*%pi*C_L);
+disp(f_t,"f_t (Hz)")
+// For NMOS transistor
+L=0.4*10^-6; // (m)
+C_L=1*10^-12; // (F)
+disp("The data calculated for I_D = 10uA")
+I_D=10*10^-6; // (A)
+WbyL=0.12*I_D; // WbyL=(W/L)
+disp(WbyL*10^6,"(W/L)")
+g_m=8*I_D;
+disp(g_m,"g_m (A/V)")
+r_o=2/I_D;
+disp(r_o,"r_o (ohm)")
+A_O=g_m*r_o;
+disp(A_O,"A_O (V/V)")
+C_gs=(2/3)*WbyL*0.4*0.4*5.8+0.6*WbyL*0.4;
+disp(C_gs,"C_gs (fF)")
+C_gd=0.6*WbyL*0.4;
+disp(C_gd,"C_gd (fF)")
+f_T=g_m/(2*%pi*(C_gs*10^-15+C_gd*10^-15));
+disp(f_T,"f_T (Hz)")
+f_t=g_m/(2*%pi*C_L)
+disp(f_t,"f_t (Hz)")
+disp("The data calculated for I_D = 100uA")
+I_D=100*10^-6; // (A)
+WbyL=0.12*I_D; // WbyL=(W/L)
+disp(WbyL*10^6,"(W/L)")
+g_m=8*I_D;
+disp(g_m,"g_m (A/V)")
+r_o=2/I_D;
+disp(r_o,"r_o (ohm)")
+A_O=g_m*r_o;
+disp(A_O,"A_O (V/V)")
+C_gs=(2/3)*WbyL*0.4*0.4*5.8+0.6*WbyL*0.4;
+disp(C_gs,"C_gs (fF)")
+C_gd=0.6*WbyL*0.4;
+disp(C_gd,"C_gd (fF)")
+f_T=g_m/(2*%pi*(C_gs*10^-15+C_gd*10^-15));
+disp(f_T,"f_T (Hz)")
+f_t=g_m/(2*%pi*C_L)
+disp(f_t,"f_t (Hz)")
+disp("The data calculated for I_D = 1mA")
+I_D=1*10^-3; // (A)
+WbyL=0.12*I_D; // WbyL=(W/L)
+disp(WbyL*10^6,"(W/L)")
+g_m=8*I_D;
+disp(g_m,"g_m (A/V)")
+r_o=2/I_D;
+disp(r_o,"r_o (ohm)")
+A_O=g_m*r_o;
+disp(A_O,"A_O (V/V)")
+C_gs=(2/3)*WbyL*0.4*0.4*5.8+0.6*WbyL*0.4;
+disp(C_gs,"C_gs (fF)")
+C_gd=0.6*WbyL*0.4;
+disp(C_gd,"C_gd (fF)")
+f_T=g_m/(2*%pi*(C_gs*10^-15+C_gd*10^-15));
+disp(f_T,"f_T (Hz)")
+f_t=g_m/(2*%pi*C_L)
+disp(f_t,"f_t (Hz)")
+\ No newline at end of file