a p-channel MOSFET with a threshold voltage Vtp=-0.7V has its source connected to ground. (a) what...
a p-channel MOSFET with a threshold voltage Vtp=-0.7V has its
source connected to ground.
(a) what should the gate voltage be for the device to operate with
an overdrive voltage of |Vov|=0.4V?
(b) With the gate voltage as in (a), what is the highest voltage
allowed at the drain while the device operates in the saturation
region?
(c) If the drain current obtained in (b) is 1mA, what would the
current be for Vd=-20mV and for Vd=-2V?
Homework Answers
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a p-channel MOSFET with a threshold voltage Vtp=-0.7V has its
source connected to ground.
(a) what...
3. For an n-channel MOSFET with gate oxide (SiO2) thickness of 30 nm, threshold voltage of 0.7 V,...
3. For an n-channel MOSFET with gate oxide (SiO2) thickness of 30 nm, threshold voltage of 0.7 V, Z = 30 um, and length of the device is 0.9 μm, calculate the drain current for VG-3 V and VD-0.2 V. Assume that the electron channel mobility is 200 cm'/V-sec. What will be the required drain current to drive the MOS in saturation region? How the drain current will change if HfO2 with Ks 25 will be used as a gate...
2. Consider an N-channel MOSFET circuit where the gate and drain terminals are shorted to- gether...
Please help, and explain as much as possible. Thank
you!
2. Consider an N-channel MOSFET circuit where the gate and drain terminals are shorted to- gether2 as shown in Figre 2. Assume that the MOSFET has trans-conductance parameter of gm = 0.5mA/V and the threshold voltage of 0.7V (a) Identify in which region the n-channel MOSFET is operating (Triode region or Saturation region)? (b) Write MATLAB code to compute the drain current for the following gate-to-source voltage, Vcs Ves-VDs 0,1,2,3,4,5,6,7...
Question 2: a) Find the value of Vgs? b) If the threshold voltage of the NMOS 0.7V, identify the region o...
Question 2: a) Find the value of Vgs? b) If the threshold voltage of the NMOS 0.7V, identify the region of operation for the MOSFET (i.e. Triode Saturation or Cutoff) v,= 10V SATE e) Write the formula to calculate Current (ID) for the circuit in Figure 1 Fig. 1 Question 3: a) Find the value of Vgs* b) If the threshold voltage of the NMOS 0.7V, identify the region of operation for the MOSFET (i.e. Triode, Saturation or Cutoff) c)...
Q2 MOSFET and I-V Curves (Total 30 pts) Q2.1 Consider the band diagrams (conduction band) of...
Q2 MOSFET and I-V Curves (Total 30 pts) Q2.1 Consider the band diagrams (conduction band) of a N-MOSFET along the channel (x) direction as shown in fig. 1. In fig. 1, the solid curve shows the band diagram with the gate voltage VG = 0. All the variables have their usual meaning. Which of the dashed curves (case I or case II) in fig. 1 represents of the band diagram (conduction band) of the N-MOSFET with VG >0? 5 pts...
Lecture Summary We discussed MOSFET biasing and different regions of operations. We further discussed IV character...
Lecture Summary We discussed MOSFET biasing and different regions of operations. We further discussed IV characteristicss of ideal and non-ideal MOSFETS. Channel length modulation and effect of channel length modulation on current ID was also discussed during the lectures. Quentinductor and PN junction is also introduced in the lectures. Draw IV characteristics of an ideal diode. b Draw IV characteristics of a non-ideal diode with Vt 0.4V e Draw IV characteristics of an ideal MOSFET al d) Draw IV characteristics...
7. Consider an ideal n-channel silicon MOSFET with the following device parameters: VT --0.8 V, μ...
Vgs for part b, not Vds
7. Consider an ideal n-channel silicon MOSFET with the following device parameters: VT --0.8 V, μ,-425 cm2V-1 s-1, tox-11 nm, w: 20 μm' and L-1.2 μm at T-300 K. nm, W- 20 a) Plot the drain current ID [mA] versus drain-source voltage Vos over the range 0 < VD 3V with VGS--0.8 V, VGs 0 V and Vas +0.8 V b) Plot root saturation current ID12(sat) [mA12] versus gate-source voltage V6s over the range...
An n-channel Sí MOSFET (ni-1.5 1010 cm-3 ,er-11.8) with 50 nm thick HfO2 high- K dielectric...
An n-channel Sí MOSFET (ni-1.5 1010 cm-3 ,er-11.8) with 50 nm thick HfO2 high- K dielectric (Er-25). The device width is W-10 m wide. The distance between the source and drain is L 0.5 μm long. The diffusion constant of the minority carriers in the channel at room temperature is 25 cm2/s. The n+ poly-Si gate is doped with Np 1020 cm-3 donors. This MOSFET is designed to have a threshold voltage of Vt 0.5 V. A gate-source voltage of...
Explain the answer 1. Consider the following MOSFET characteristics. What type of device is it? A....
Explain the answer
1. Consider the following MOSFET characteristics. What type of device is it? A. N-channel depletion-mode MOSFET B. N-channel enhancement-mode MOSFET. C. P-channel depletion-mode MOSFET. D. P-channel enhancement-mode MOSFET. Ip(mA) 1.5 1.0 0.5 V 00 V 0 0 2.0 4.0 6.0 Consider an n-channel MOSFET. Assuming no interface charge due to defects and/or traps, how would the the following parameters change when the oxide thickness is reduced? The flat band voltage VFB A. Increase B. Increase; c. Unchange:...
all please TEST #3 of the FET and are unaffected by 1. Schokley's equation defines the...
all please
TEST #3 of the FET and are unaffected by 1. Schokley's equation defines the the network in which the device is employed. (a) Vas characteristics (b) drain characteristics (c) input output characteristics (d) transfer characteristics 2. For an N-channel JFET Ipss -8 mA and Vp-6 V. If Vas-2 V then what is the value of the drain current ID? (a) 2.666 mA (b) 3.5 LA (c) 3.55 mA (d) 5.33 mA 3. D-MOSFETs can operate in: (a) The...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os,...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os, is so large it may be neglected. 0) Calculate the open circuit voltage gain Av Yout/ Vis. i) The amplifier has a load of 10 k2. Determine the current gain Va. = 12 V 150k 4k3 Vout Vin 200k GND = 0 V Figure 4b a) State the name...
3. For an n-channel MOSFET with gate oxide (SiO2) thickness of 30 nm, threshold voltage of 0.7 V, Z = 30 um, and length of the device is 0.9 μm, calculate the drain current for VG-3 V and VD-0.2 V. Assume that the electron channel mobility is 200 cm'/V-sec. What will be the required drain current to drive the MOS in saturation region? How the drain current will change if HfO2 with Ks 25 will be used as a gate...
Please help, and explain as much as possible. Thank
you!
2. Consider an N-channel MOSFET circuit where the gate and drain terminals are shorted to- gether2 as shown in Figre 2. Assume that the MOSFET has trans-conductance parameter of gm = 0.5mA/V and the threshold voltage of 0.7V (a) Identify in which region the n-channel MOSFET is operating (Triode region or Saturation region)? (b) Write MATLAB code to compute the drain current for the following gate-to-source voltage, Vcs Ves-VDs 0,1,2,3,4,5,6,7...
Question 2: a) Find the value of Vgs? b) If the threshold voltage of the NMOS 0.7V, identify the region of operation for the MOSFET (i.e. Triode Saturation or Cutoff) v,= 10V SATE e) Write the formula to calculate Current (ID) for the circuit in Figure 1 Fig. 1 Question 3: a) Find the value of Vgs* b) If the threshold voltage of the NMOS 0.7V, identify the region of operation for the MOSFET (i.e. Triode, Saturation or Cutoff) c)...
Q2 MOSFET and I-V Curves (Total 30 pts) Q2.1 Consider the band diagrams (conduction band) of a N-MOSFET along the channel (x) direction as shown in fig. 1. In fig. 1, the solid curve shows the band diagram with the gate voltage VG = 0. All the variables have their usual meaning. Which of the dashed curves (case I or case II) in fig. 1 represents of the band diagram (conduction band) of the N-MOSFET with VG >0? 5 pts...
Lecture Summary We discussed MOSFET biasing and different regions of operations. We further discussed IV characteristicss of ideal and non-ideal MOSFETS. Channel length modulation and effect of channel length modulation on current ID was also discussed during the lectures. Quentinductor and PN junction is also introduced in the lectures. Draw IV characteristics of an ideal diode. b Draw IV characteristics of a non-ideal diode with Vt 0.4V e Draw IV characteristics of an ideal MOSFET al d) Draw IV characteristics...
Vgs for part b, not Vds
7. Consider an ideal n-channel silicon MOSFET with the following device parameters: VT --0.8 V, μ,-425 cm2V-1 s-1, tox-11 nm, w: 20 μm' and L-1.2 μm at T-300 K. nm, W- 20 a) Plot the drain current ID [mA] versus drain-source voltage Vos over the range 0 < VD 3V with VGS--0.8 V, VGs 0 V and Vas +0.8 V b) Plot root saturation current ID12(sat) [mA12] versus gate-source voltage V6s over the range...
An n-channel Sí MOSFET (ni-1.5 1010 cm-3 ,er-11.8) with 50 nm thick HfO2 high- K dielectric (Er-25). The device width is W-10 m wide. The distance between the source and drain is L 0.5 μm long. The diffusion constant of the minority carriers in the channel at room temperature is 25 cm2/s. The n+ poly-Si gate is doped with Np 1020 cm-3 donors. This MOSFET is designed to have a threshold voltage of Vt 0.5 V. A gate-source voltage of...
Explain the answer
1. Consider the following MOSFET characteristics. What type of device is it? A. N-channel depletion-mode MOSFET B. N-channel enhancement-mode MOSFET. C. P-channel depletion-mode MOSFET. D. P-channel enhancement-mode MOSFET. Ip(mA) 1.5 1.0 0.5 V 00 V 0 0 2.0 4.0 6.0 Consider an n-channel MOSFET. Assuming no interface charge due to defects and/or traps, how would the the following parameters change when the oxide thickness is reduced? The flat band voltage VFB A. Increase B. Increase; c. Unchange:...
all please
TEST #3 of the FET and are unaffected by 1. Schokley's equation defines the the network in which the device is employed. (a) Vas characteristics (b) drain characteristics (c) input output characteristics (d) transfer characteristics 2. For an N-channel JFET Ipss -8 mA and Vp-6 V. If Vas-2 V then what is the value of the drain current ID? (a) 2.666 mA (b) 3.5 LA (c) 3.55 mA (d) 5.33 mA 3. D-MOSFETs can operate in: (a) The...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os, is so large it may be neglected. 0) Calculate the open circuit voltage gain Av Yout/ Vis. i) The amplifier has a load of 10 k2. Determine the current gain Va. = 12 V 150k 4k3 Vout Vin 200k GND = 0 V Figure 4b a) State the name...
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