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AT&T Archives: Dr. Walter Brattain on Semiconductor Physics 

AT&T Tech Channel
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See more videos from the AT&T Archives at techchannel.att.com/archives
In this film, Walter H. Brattain, Nobel Laureate in Physics, presents an introductory college-level lecture on the physics of semiconductors. He demonstrates by experiment such semiconductor properties as thermal EMF, photo EMF, and rectification. He introduces a simple mathematical model to describe the observed properties of semiconductors.
The history of the development of semiconductors, the impact of new discoveries and some of the new phenomena are also discussed. Dr. Brattain shared the Nobel Prize in 1956 for his co-invention of the transistor. He was a member of the Physical Research department of Bell Laboratories.
Footage courtesy of AT&T Archives and History Center, Warren, NJ

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11 июл 2011

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Комментарии : 45   
@abhijithanilkumar4959
@abhijithanilkumar4959 4 года назад
Semiconductor physics by the man among the three who invented transistor and won noble prize for it What else do you want
@thevoid141
@thevoid141 6 лет назад
This is undoubtedly the best educational video on youtube, because how many times would you get the chance to learn concepts from the very person who invented it. Thank you AT&T.
@dr28kumar
@dr28kumar 6 лет назад
How wonderful to hear from the discoverer of the transistor. Tqvm AT&T Tech Channel
@plankalkulcompiler9468
@plankalkulcompiler9468 8 месяцев назад
Underrated video! Explains it much better than the teachers in university (no doubt about that as he was among three that won the Nobel prize for their invention of transistors). I think this video should have a restoration to have better quality.
@RalphDratman
@RalphDratman 6 лет назад
Superb basic lecture by one of the inventors of the transistor. From Wikipedia: "Walter Houser Brattain (/ˈbrætən/; February 10, 1902 - October 13, 1987) was an American physicist at Bell Labs who, along with fellow scientists John Bardeen and William Shockley, invented the point-contact transistor in December 1947.[1] They shared the 1956 Nobel Prize in Physics for their invention."
@nobodynowhere7163
@nobodynowhere7163 Год назад
Amazing! I took three semesters of semiconductor physics (basically a math class!) and this lecture is by and large the best ever!
@radiofun232
@radiofun232 3 года назад
The far best explanation on You Tube about how a transistor works.
@bhawmik
@bhawmik 12 лет назад
Great piece of history!
@dvscrobe
@dvscrobe 5 лет назад
This is amazing stuff. Important videos for physics students to watch. So, it sounds like during the war, we were aware of N and P type semiconductors but had no idea what made a particular type. I never seen that formula before. Were they ever able to create a 100% pure silicon or germanium? I guess maybe that was impossible.
@greensombrero3641
@greensombrero3641 5 лет назад
Can you go over that outline slide once again, I think I missed something
@linwang3896
@linwang3896 Месяц назад
Great lecture! Thank you n really appreciate it!
@ibpointless2
@ibpointless2 13 лет назад
Great video!
@MisterTalkingMachine
@MisterTalkingMachine 8 лет назад
That must be a LED at 27:45
@radiofun232
@radiofun232 4 года назад
Well explained, especially the "hole" effect.
@udiuks3052
@udiuks3052 5 лет назад
Waoo. I am watching an inventor through a device ( smart phone ) who invented the root technology (transistor) .
@mohammedviso2269
@mohammedviso2269 9 лет назад
I enjoyed with this video
@wbeaty
@wbeaty 7 лет назад
See the "LED" stuff starting at 26:17. But he seems to say that bandgap is in the near UV. Perhaps it's not LED emission, but instead avalanche-light, as with contemporary "silicon visible emitters" based on reverse breakdown.
@somrikchatterjee9383
@somrikchatterjee9383 4 года назад
Due to reverse biasing
@Ak-yz6td
@Ak-yz6td 9 лет назад
lovely
@mamorumotohasi9348
@mamorumotohasi9348 5 лет назад
experiments are very interesting. I want to do it.
@64etto
@64etto 3 года назад
Merry Christmas
@Shmaristotle
@Shmaristotle 12 лет назад
28:29 "What is important to learn..." and then the video skips! Oh well, great video anyway.
@JohnIwaszko
@JohnIwaszko 3 года назад
Dam now we will never know what was important to learn!
@jostpuur
@jostpuur 5 лет назад
Why there's nothing about Bloch waves?
@wayarjoel
@wayarjoel 12 лет назад
Y COMO ES QUE UNA RELIQUIA COMO ESTA.. NO ESTÁ TRADUCIDA..
@braunschreiber6230
@braunschreiber6230 3 года назад
Why not use aluminum which also has three free electrons instead of Gallium as impurity?
@ApricityGlow
@ApricityGlow 3 года назад
Found out this man is my distant cousin when I asked my mother about the same last names.
@tiov3001
@tiov3001 3 года назад
The important lesson has been withheld. Illuminati confirmed.
@vinolpinto6060
@vinolpinto6060 8 лет назад
omg.. he was just like a robot.. didnt make mistakes while talking
@mamorumotohasi9348
@mamorumotohasi9348 5 лет назад
That's study History.
@tubite2
@tubite2 11 лет назад
AT&T trade secret, maybe.
@JeremyHongelectronics
@JeremyHongelectronics 11 лет назад
5:30 Solar Power!!!!
@NJKirchner
@NJKirchner 8 лет назад
Great information but must watch at 2x speed. I would have been asleep in 10 minutes in his class.
@DataWaveTaGo
@DataWaveTaGo 8 лет назад
+Norman Kirchner People had more time in those days. ;)
@wisp1adjukoneadj629
@wisp1adjukoneadj629 5 лет назад
@@DataWaveTaGo And hand wrote notes.
@sammin5764
@sammin5764 Год назад
🌟🌟🌟🌟🌟
@areniasweber8822
@areniasweber8822 7 лет назад
Change the video speed to 1.5x if you're wanting to watch without dozing off.
@Jimmyzb36
@Jimmyzb36 5 лет назад
Electro Motive Force
@danielbowen6011
@danielbowen6011 6 лет назад
For those who like a challenge: watch this entire video on your phone in bed without falling asleep. Took me a couple tries to get through.
@AyushYadav-mr5jj
@AyushYadav-mr5jj 3 года назад
Just did it.
@sadredman
@sadredman 12 лет назад
Is he saying 'extree' for extra, like some old timer in a western movie?
@varunshrivastav8876
@varunshrivastav8876 3 года назад
00:35 it's quite ironic that he's teaching about history
@legslegal
@legslegal 12 лет назад
Great video!!!
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