In this video we have covered the basic architecture of MOS transistor. The types of MOSFETs and how a MOSFET can act as a switch are explained in detail. Further, the definition of threshold voltage is discussed with proper explanation.
Thank you, professor, for your speed of delivering points is good. You are clearing all doubts before arising in my mind. I want faculty like you for teaching VLSI. Again Thank You PROFESSOR
Sir it was fantastic lecture I have ever listen till. Too nice derailing has been done by your side. Actually I studied this subject 11 years before and then almost no connection..but your lecture reminds or revive everything to me very very clearly. Thanks
@@hvkeee Prof saheb is telling that Vt is controlled by Vbi ( junction built in potential) tells a lot about state of affair in IIT... may be reservation is cause
50:20 One side is specified as source and other as drain just because of the voltage difference .as we all know that the source is grounded the side which has lower potential is known as source and the side with higher potential is known as drain.
At 40:48, i think in depletion type n-MOSFET there is a physically implanted channel(as i have read from the books) . It does not have an N-type substrate as you quoted sir. But when there is a channel already present then how does the electric field modulate the channel which is the basic working of a MOSFET.
Very nice presentation sir , i really got some additional exposure than what i know already. Thank you so much sir , Have a great day sir. Srinivas , Hyderabad.
What is the most suitable answer for the question asked at 24:32? if mos structure is symmetrical then why one region is called source and another drain?
Because although they seem diagrammatically similar, at high frequency of operation, they do not exhibit the same capacitances (because they are made that way, they source being closer to the bulk). So yeah, sure for DC operation their switching action is symmetrical but not in computer circuits operating at GHz frequencies.
Answer to the question asked at 24:28 --The one which is connected to higher potential (Vdd) is drain and the one which is connected to lower potential (vss) is source . It is called symmetric because rise time and fall time are equal, device ratio is unity.
good discussion, most of the circuit analysis, we use the convention current was is based on "holes" so opposite of "electron". So, when we say S-to-D that is the "electron" current, in circuit analysis (textbooks), most of the time we are assuming the convention or "hole" current which so D-to-S current. It can be confusing.
Sir I am Vinay, from telangana .Sir I have registered for cmos vlsi designing as my nptel course .Sir I had a doubt that some will complete their course fastly and some by some delay then,exam date will be fixed or based on completion we can write the exam ?
In 51 minute video right .....you try to teach well right ....but i can't get you right ....please make this lecture in hindi right ....but only if your hindi is right ....sorry sir ...right...
