Podcast
Questions and Answers
What is the reason behind calling certain capacitances 'junction' capacitances?
What is the reason behind calling certain capacitances 'junction' capacitances?
- Due to their high dependence on bias voltages
- Because they are formed between the two materials at PN junctions (correct)
- Because they are highly dependent on the channel length of the MOSFET
- Due to their relation to the drain of the CMOS structure
Which junction capacitance is concerned with the Source to Body capacitance in a CMOS structure?
Which junction capacitance is concerned with the Source to Body capacitance in a CMOS structure?
- Cdb
- Cgd
- Csb (correct)
- Cgs
In a n+ / p junction, what does the Area of diffusion region to substrate beneath gate equal to?
In a n+ / p junction, what does the Area of diffusion region to substrate beneath gate equal to?
- $Y \cdot xj$
- $W \cdot Y$
- $W \cdot xj$ (correct)
- $xj$
Which factor highly influences the capacitances discussed in the text?
Which factor highly influences the capacitances discussed in the text?
What is the purpose of the junction capacitances in CMOS structures?
What is the purpose of the junction capacitances in CMOS structures?
In cut-off mode of an N-Channel MOSFET, what is the value of gate-to-source and gate-to-drain capacitances?
In cut-off mode of an N-Channel MOSFET, what is the value of gate-to-source and gate-to-drain capacitances?
What is the formula to calculate the overlap capacitance CGD (overlap) in an N-Channel MOSFET?
What is the formula to calculate the overlap capacitance CGD (overlap) in an N-Channel MOSFET?
What is the capacitance that can be approximated by $Cox \times W \times L$ in an N-Channel MOSFET?
What is the capacitance that can be approximated by $Cox \times W \times L$ in an N-Channel MOSFET?
Which capacitances in an N-Channel MOSFET are voltage-independent?
Which capacitances in an N-Channel MOSFET are voltage-independent?
In the linear mode of operation of an N-Channel MOSFET, why is Cgb equal to zero?
In the linear mode of operation of an N-Channel MOSFET, why is Cgb equal to zero?
What determines the overlap capacitances CGS (overlap) and CGD (overlap) in an N-Channel MOSFET?
What determines the overlap capacitances CGS (overlap) and CGD (overlap) in an N-Channel MOSFET?
What is the formula for calculating the charge in the channel of an N-Channel MOSFET?
What is the formula for calculating the charge in the channel of an N-Channel MOSFET?
What is the relationship between carrier velocity (v) and lateral electric field (E) in an N-Channel MOSFET?
What is the relationship between carrier velocity (v) and lateral electric field (E) in an N-Channel MOSFET?
How do you calculate the time required for carriers to cross the channel in an N-Channel MOSFET?
How do you calculate the time required for carriers to cross the channel in an N-Channel MOSFET?
What does the lateral electric field in an N-Channel MOSFET depend on?
What does the lateral electric field in an N-Channel MOSFET depend on?
In the N-Channel MOSFET characteristics, what does Cox represent?
In the N-Channel MOSFET characteristics, what does Cox represent?
How is the charge in the channel related to the gate-source voltage and threshold voltage in an N-Channel MOSFET?
How is the charge in the channel related to the gate-source voltage and threshold voltage in an N-Channel MOSFET?
