Mosfet - Study guides, Class notes & Summaries

University of California, Irvine EECS 170c Final Exam Questions with 100% Correct Answers EECS 170C Final Examination Please note: 1. Examination is open book and notes. 2. Two problems. Problems carry different weights. 3. Problem 1 answers must be entered into CANVAS to get credit. 4. Maximum time is 2 hours. 5. All the answers must be added in the tables provided. 6. Please write your name on each page you submit. Problem 1 (25 points.) Following is given for the circ...

EE 310 Electronic Circuit Design 1 Experiment 5 Active Biasing of the MOSFET Amplifier Introduction: The purpose of this lab is extremely simple, build a current source and understand why Integrated Circuit (IC) designers use them. The type of current source that will be constructed in this experiment is called a Current Mirror. A Current Mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping th...

ECE 098 Lab 4- BJTs, MOSFETs, and Motors University of the People/ECE 098 Lab 4- BJTs, MOSFETs, and Motors University of the People

A D-MOSFET can operate in the - Depletion-mode or enhancementmode When an n-channel D-MOSFET has lo> loss, it - is operating in the enhancement- mode The voltage gain of a D-MOSFET amplifier is dependent on - All of the above Which of the following devices revolutionized the computer industry? - E-MOSFET The voltage that turns on an EMOS device is the - Threshold voltage Which of these may appear on the data sheet of an enhancement- mode MOSFET? - All the above The VGSon of an n-channel...

An Enhancement-mode MOSFET acts like a normally _______ switch. - Answer-open What separates the metal gate electrode from the semiconductor substrate material in a MOSFET? - Answer-an insulating layer In which MOSFET device is the channel already constructed to be the same doping as the source and drain? - Answer-PMOS Depletion-Mode A Depletion-mode MOSFET acts like a normally _______ switch. - Answer-closed What is the symbol for an Enhancement-mode MOSFET? - Answer-A (sorry no picture) ...

What are the conditions for the cut-off region? - Vgs ≤ Vt What's the equation for the cut-off region? - Ids = 0 What's the equation for Id in the FET linear (resistive) region? - Id = β(Vgs-Vt)Vds What are the conditions for linear (resistive) region? - Vg ≤ Vt and Vds << (Vgs-Vt) What's the equation for Id in the FET triode region? - Id = β[(Vgs-Vt)Vds-Vds²/2] What are the conditions for triode region? - Vgs > Vt and Vds≤(Vgs-Vt) What's the equation for Id in the FE...

Calculate threshold voltage (4 steps) - 1) calculate C'ox 2) Inversion voltage 3) Depletion voltage 4) threshold Accumulation condition - Small -ve voltage induce opposite charge in silicon, +ve accumulation of silicon due to holes, applied voltage - sum of v drop and band bending in silicon, difference in fermi levels qV Depletion condition - Small +ve voltage induces opposite charge, v drop oxide depends on capacitance Inversion condition - Large +ve voltage, increase depletion width, ...

An Enhancement-mode MOSFET acts like a normally _______ switch. - ANSWER open What separates the metal gate electrode from the semiconductor substrate material in a MOSFET? - ANSWER an insulating layer In which MOSFET device is the channel already constructed to be the same doping as the source and drain? - ANSWER PMOS Depletion-Mode

A D-MOSFET can operate in the - ANSWER Depletion-mode or enhancement- mode When an n-channel D-MOSFET has lo> loss, it - ANSWER is operating in the enhancement- mode

What are the conditions for the cut-off region? - ANSWER Vgs ≤ Vt What's the equation for the cut-off region? - ANSWER Ids = 0 What's the equation for Id in the FET linear (resistive) region? - ANSWER Id = β(Vgs-Vt)Vds What are the conditions for linear (resistive) region? - ANSWER Vg ≤ Vt and Vds << (Vgs-Vt)