FET/MOSFET (Video 1 of 4)

This is the first of four movies (see below) The Field Effect Transistor made its entrance into industry in the shape of the JFET. Some time later, its younger cousin, the MOSFET, made a splash that continues to make it the centerpiece of digital electronic systems this day. I find it "natural" to explain the evolution from the JFET to the MOSFET using the simpler JFET mechanisms first. That is the approach: we begin with the JFET and then we move on to the MOSFET (in three aditional movies). I have also included a few tutorials, all listed below. I hope you find them useful.

1. The FET

2. The MOSFET 1/3

3. The MOSFET 2/3

3. The MOSFET 3/3

4. Tutorial on MOSFET part 1

5. Tutorial on MOSFET part 2

6. Tutorial on MOSFET part 3

7. Tutorial on MOSFET part 4

8. Final Exam's MOSFET question part 1

9. Final Exam's MOSFET question part 2

[PoojaryPawan]

Whenever I feel down, I come here..not to study..but listen to his voice, he makes us feel like everything's gonna be alright.

[knartfocker_]

This guy's voice alone is worth a thumbs up.

[coryelizabethbazzle]

You, Sir, deserve an Academy award for holding my attention for over 30 minutes on this subject.

[Danielkehinde-dttd]

I wish professors would come and learn from you how to present their lectures to students. You make everything easy to understand. Thank you very much, Sir.

[rolinychupetin]

Just a comment on way of speaking: near the 9:27 point, I describe the source and the drain as the parts of the channel where electrons "appear" into the channel and "disappear" off the channel, correspondingly. Of course, the electrons will not disappear from the circuit, they will just continue their journey through the cables, external resistors if any, and through the source to "re-appear" at the source terminal of the channel again. This way of speaking, which was coined by the original creators of the device may sound odd to modern ears. Remember, the "appearance" and "disappearance" is given with the channel as the proverbial context. I thought this would be evident, but it was not so to one of the almost half a million viewers, so I figured that this comment might be of help.

[SwineOMGFlu]

Your voice is so smooth I get goosebumps. Definitely kept my attention span for the entire video. Nice job!

[Liviutx]

This was a great refresher ! I studied the transistors (and I kind of hated them) in college, almost 20 years ago and I wish the theory was presented then in such a clear and enjoyable way as it is in this video.
Thank you for the explanation, and for your willingness to share the knowledge and  make it so accesible. Hats off for that. And, I love the accent.

[anindya]

your video has just made me amazed... for an hour, I was thinking, how one can teach so smoothly... easily.... like a music... I have shared your video to my students... even teachers can learn from your and what an amazing voice you have.... thank God you are in this "field" ("field of Electronics")

[richardremi]

Wow, I am not going to fail my exam after all.. Thank you for this video.

[chandraprakashpatel]

great teachers can make even most boring subjects most interesting...and you are the one. Thank you

[crawfordjohnr]

I know NOTHING about electrical engineering but I was riveted by your video and watched it in full. Very interesting and very well explained. Thank you!

[rolinychupetin]

Dear Dr. Arias,
Thank you so much. It is very kind of your to take the time and post, and you are an inspiration to the rest of us too. Sincerely,

[YazanOdeh]

Big Thanks from Palestine 

Your voice goes deep in mind and force the listener to focus

[wangyi-us]

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[aliaslmx]

I love your warm voice! It's a pleasure to listen your lectures! Thank you very much!

[pablosanchezmunoz]

Congratulations! This is the best master explanation about transistors components I have ever seen: really accurate, clear and detailed. Thank you!

[razorr]

Well explanations everywhere but the fact you feel the need to share and reasons of your belief, hats off sir.
You deserve all the gratitude. And that voice, i would say is more of a capturing one, not letting the visitor stray...

I would like to send you some of my appreciation as a gift if i ever had your mailing address.

[aditya]

u are gr8...this is the first time in my life of 32 yrs that i hv understood FETs

[adampilsniak]

I would like to thank You! I have a lecture for foreign students (my native language is Polish). Your presentation is very useful because of electronics vocabulary and your pronunciation. Your description of electronics phenomena is glorious and clear!
Voice ... of course cool.

[nhantranb.]

I completed my major in mechanical engineering and somehow struggles in dealing electronics stuffs. This kind of educational material could never be better and really help me a lot. Deeply appreciated!