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Problem 1. Given a n-p-n bipolar junction transistor, draw the energy band diagrams for (a) thermal...
Problem 2. A silicon NPN bipolar transistor has the following specifications: Emitter: N+: ND =1018 cm-3...
Problem 2. A silicon NPN bipolar transistor has the following specifications: Emitter: N+: ND =1018 cm-3 , base: p-type, NA=1015 cm-3, collector: N-type, ND=5x1015 cm-3 . 1. Draw the energy band diagram of the transistor at thermal equilibrium, 2. If the transistor is biased at Normal Active Mode, emitter-base junction forward biased with 1 V, and collector-base junction is reverse biased with 4V, draw the energy band diagram.
5. Sketch the energy band diagram for a p'-n step junction diode at: (a) thermal equilibrium;...
5. Sketch the energy band diagram for a p'-n step junction diode at: (a) thermal equilibrium; (b) forward bias (show with respect to thermal equilibrium) (c) reverse bias (show with respect to thermal equilibrium) (d) in part (a) sketch a new diagram showing the carrier flux and the four current components with respect to each other.
Draw an equilibrium band diagram for Si p-n junction and find contact potential? if energy between...
Draw an equilibrium band diagram for Si p-n junction and find contact potential? if energy between Fermi level and conduction band of n-type 97 meV and energy between Fermi level and valence band of p-type 67 meV ?
question 3 and 4 Problem2 (30 points) Consider an npn bipolar transistor with the following characteristics...
question 3 and 4
Problem2 (30 points) Consider an npn bipolar transistor with the following characteristics Base Collector Emitter Na-5x 1016 cm3 Ng- 1015 cm3 N1018 cm3 DC- 12 cm-/sec DE 8 cm-/sec (diff coef.) DB 15 cm-/sec sec TEO 108 sec (life time) tB0 5x 10 tCo 10 sec xp 0.7 um (Base width) xg 0.8 um (emitter width) D Remember D/u= KT /q, and L n.p n.p A forward bias of 0.5 V is applied to the emitter-base...
1. Consider a p-n junction diode with doping concentrations: NA6.5x1015 cm3 and ND 107 cm3 in...
1. Consider a p-n junction diode with doping concentrations: NA6.5x1015 cm3 and ND 107 cm3 in the p- and n-sides, respectively. (a) Calculate the free electron and hole concentrations in both p- and n-sides' neutral regions. (b) Find the barrier height and the built-in voltage. (c) Sketch the energy band diagram of the complete p-n junction. Mark all energy levels including the barrier height and show the energy level values. (d) Calculate the total depletion width under zero bias. (e)...
6. Draw the energy band diagrams for AlGagAs on GaAs (a) for P-AlGaAs, n-GaAs [5 pt]...
6. Draw the energy band diagrams for AlGagAs on GaAs (a) for P-AlGaAs, n-GaAs [5 pt] (b) for N-AlGaAs, intrinsic-GaAs 15 pt Here, E, (AlGa 7As) 1. 85 eV, E, (GaAs) 1.43 eV, and 4E, 2/3 AE
6. Draw the energy band diagrams for AlGagAs on GaAs (a) for P-AlGaAs, n-GaAs [5 pt] (b) for N-AlGaAs, intrinsic-GaAs 15 pt Here, E, (AlGa 7As) 1. 85 eV, E, (GaAs) 1.43 eV, and 4E, 2/3 AE
A3. (a) Draw a band diagram and a cross-sectional diagram of an abrupt p-n junction0Marks] with N...
a3. (a) Draw a band diagram and a cross-sectional diagram of an abrupt p-n junction0Marks] with N>N at thermal equilibrium at 300K and label the following: () Diffusion currents, (i) Drift currents (ii) Fermi level, (iv) SCR, (v) QNR, (vi) Contact potential with polarity, (vi) Electric field distribution in the SCR, (vii) Electrostatic potential distribution in SCR, (ix) SCR charges, and (x) SCR penetration into the p-and n sides. (b) In a p'-n junction at 300K, the n side has...
An ideal metal-semiconductor (M-S) junction is formed on the n-type Si semiconductor that is uniformly doped...
An ideal metal-semiconductor (M-S) junction is formed on the n-type Si semiconductor that is uniformly doped with a donor impurity (phosphorus) concentration of 1016 cm. The metal work function is 4.5 eV, and the Si electron affinity is 4 eV. Assuming that this M-S junction is at 300K, give your best answers to the following questions. (50 points) (a) At thermal equilibrium, draw the energy band diagram including meaningful parameters (energy barriers, energy levels, depletion width, etc.). (b) Calculate the...
draw a base biased circuit and refered to question 5 and complete table. please draw the fixed bias diagram circuit and follow throught step on the next question. Figure 1. Bipolar junction tran...
draw a base biased circuit and refered to question 5 and
complete table.
please draw the fixed bias diagram circuit and follow throught step
on the next question.
Figure 1. Bipolar junction transistor under base bias/fixed bias 5. In the circuit drawn in Figure 1, label the components with the following values: Base voltage, Collector voltage10V Base resistance Collector resistance Base - emitter voltage 2.7 k2 0.7 V 160 6. Connect the circuit drawn in Figure 1 on the breadboard....
For a Si p-n junction with p-type doping of 1 x 10^16/cm3 and n-type doping of...
For a Si p-n junction with p-type doping of 1 x 10^16/cm3 and n-type doping of 1 x 10^19/cm3, calculate the built-in potential Vb at 300K, dark, thermal equilibrium condition. Please show the equations and parameters used in the calculation and the value of Ec-Ef, Ef-Ev, and Vb. Please draw a band structure similar to the one in lecture 5 slide 6 based on your results, please also label Ec, Ev, Vb, and Ef in the drawing.
5. Sketch the energy band diagram for a p'-n step junction diode at: (a) thermal equilibrium; (b) forward bias (show with respect to thermal equilibrium) (c) reverse bias (show with respect to thermal equilibrium) (d) in part (a) sketch a new diagram showing the carrier flux and the four current components with respect to each other.
question 3 and 4
Problem2 (30 points) Consider an npn bipolar transistor with the following characteristics Base Collector Emitter Na-5x 1016 cm3 Ng- 1015 cm3 N1018 cm3 DC- 12 cm-/sec DE 8 cm-/sec (diff coef.) DB 15 cm-/sec sec TEO 108 sec (life time) tB0 5x 10 tCo 10 sec xp 0.7 um (Base width) xg 0.8 um (emitter width) D Remember D/u= KT /q, and L n.p n.p A forward bias of 0.5 V is applied to the emitter-base...
1. Consider a p-n junction diode with doping concentrations: NA6.5x1015 cm3 and ND 107 cm3 in the p- and n-sides, respectively. (a) Calculate the free electron and hole concentrations in both p- and n-sides' neutral regions. (b) Find the barrier height and the built-in voltage. (c) Sketch the energy band diagram of the complete p-n junction. Mark all energy levels including the barrier height and show the energy level values. (d) Calculate the total depletion width under zero bias. (e)...
6. Draw the energy band diagrams for AlGagAs on GaAs (a) for P-AlGaAs, n-GaAs [5 pt] (b) for N-AlGaAs, intrinsic-GaAs 15 pt Here, E, (AlGa 7As) 1. 85 eV, E, (GaAs) 1.43 eV, and 4E, 2/3 AE
6. Draw the energy band diagrams for AlGagAs on GaAs (a) for P-AlGaAs, n-GaAs [5 pt] (b) for N-AlGaAs, intrinsic-GaAs 15 pt Here, E, (AlGa 7As) 1. 85 eV, E, (GaAs) 1.43 eV, and 4E, 2/3 AE
a3. (a) Draw a band diagram and a cross-sectional diagram of an abrupt p-n junction0Marks] with N>N at thermal equilibrium at 300K and label the following: () Diffusion currents, (i) Drift currents (ii) Fermi level, (iv) SCR, (v) QNR, (vi) Contact potential with polarity, (vi) Electric field distribution in the SCR, (vii) Electrostatic potential distribution in SCR, (ix) SCR charges, and (x) SCR penetration into the p-and n sides. (b) In a p'-n junction at 300K, the n side has...
An ideal metal-semiconductor (M-S) junction is formed on the n-type Si semiconductor that is uniformly doped with a donor impurity (phosphorus) concentration of 1016 cm. The metal work function is 4.5 eV, and the Si electron affinity is 4 eV. Assuming that this M-S junction is at 300K, give your best answers to the following questions. (50 points) (a) At thermal equilibrium, draw the energy band diagram including meaningful parameters (energy barriers, energy levels, depletion width, etc.). (b) Calculate the...
draw a base biased circuit and refered to question 5 and
complete table.
please draw the fixed bias diagram circuit and follow throught step
on the next question.
Figure 1. Bipolar junction transistor under base bias/fixed bias 5. In the circuit drawn in Figure 1, label the components with the following values: Base voltage, Collector voltage10V Base resistance Collector resistance Base - emitter voltage 2.7 k2 0.7 V 160 6. Connect the circuit drawn in Figure 1 on the breadboard....
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