Semiconductor Devices: Fundamentals

[@Muhammad-Salman-Saeed]

Dear professor, where i can find the soloutions of all the given problems in this book?

[@simonyoungglostog]

Great stuff. I couldn't find the video on 'wye' to 'Delta' resistor networks. I was looking forward to how you explain the maths on those. I've found it in your text, so thank you. In these semiconductor discussions is it actually a single crystal lattive per transistor/diode? I find the whole thing incredible. Sometimes humanity is simply grand!

[@lesleypaulvj_TVPM]

Explained well, thanks for the effort!

[@MineGames66]

These videos are great, thanks!

[@Chris-hi2hn]

Looking forward to learning electronics from your videos. Question why can't you simply mechanically join N and P materials to make a diode?

[@ElectronicswithProfessorFiore]

That's a good question and I'll give a quick answer, keeping it simple. First, you must consider the scale. Any sort of physical break (the mating surface of the two parts) would be huge in comparison to the silicon atoms. It would be like trying to drop a set of golf balls into a set of holes cut into a large board, but the golf balls are on one side of the Grand Canyon and the board on the other. Then there is the practical side of joining these things. For example, a bipolar transistor has three layers. The middle layer is amazingly thin compared to human scale, and would be extremely fragile if you tried to manipulate it mechanically. Finally, with integrated circuits, we make them in sort of a "layer cake" fashion (e.g., all of the transistor emitters at the same time) rather than piecing together the individual parts. That technique is what makes it possible to create ICs that have millions of transistors but only cost dollars instead of millions of dollars each.

[@Chris-hi2hn]

@Electronics with Professor Fiore That was a helpful analogy thanks! i'm sure I'll be following up with more questions.

[@noob.4859]

Sir i have a doubt from page no. 16 of your book electronic devices in the topic variable naming convention, you write that voltage are denoted by Vxy and like that but the exception for this are power supplies which is denoted like Vbb or Vee, i m curious to know the difference between voltage and power supply. Thankyou

[@ElectronicswithProfessorFiore]

"Voltage" is a generic term indicating a potential difference. A power supply is a fixed DC voltage source, for example, a battery. Ideally, its value never changes. The other voltages referred to are those potentials seen across various components such as resistors or transistors. Their voltages will depend on the supply voltage(s). Sources generally are considered as voltage "rises" while the voltages across resistors and the like are generally considered as "drops".

[@FaithPhotoane-oq2vh]

Elaborate on field effect transistor

[@ElectronicswithProfessorFiore]

There are several videos covering FETs further along in the Semiconductor Devices playlist. Have a look.