Homebrew NMOS Transistor Step by Step - So Easy Even Jeri Can Do It
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Uploaded on May 13, 2010
Jeri shows step by step how to make a transistor and at home with a kiln, Whink Rust and Stain remover, Emulsitone spin on dopant, ebay wafers and vinyl stickers.
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Uploader Comments (jeriellsworth)
Vatsek 1 year ago
Did you also make a PMOS transistor?
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jeriellsworth 1 year ago
I have. It takes longer.
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supergenius1994 1 year ago
where do you get the starting wafer?
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jeriellsworth 1 year ago
Ebay and an other companies that offer prime wafers. Very easy to find.
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supergenius1994 1 year ago
I'm sorry, but I can't find anything at all.
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jeriellsworth 1 year ago
They will show up on ebay. Keep an eye open for silicon wafer.  There are companies that sell directly too.
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Top Comments
ssapp72 2 years ago
You make homebrewed transistors? IMHO, you are officially the coolest woman alive. :D
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jeriellsworth 1 year ago
@ITGuru0111 Dust is not a huge problem when the transistors are as big your thumbnail.
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All Comments (134)
Sean Murphy 3 days ago
Just started watching another of your videos on this. I was right that the substrate needed to be p-doped, but I didn't know that the wafers came like that.
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Sean Murphy 3 days ago
Don't you need the substrate slightly p-doped?
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biglift1 2 weeks ago
you would LOVE to work at ASML. have a whole factory and lab at your disposal.
worked there my selves for years at E-dev. the dumpster was a gold mine at times for getting nice rare treats :)
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officialnightlifepro 2 weeks ago
Sorry to tell you I made my first transistor out of a strip of copper oxide and with that I changed my relay computers into transistorized ones running MS-DOS thx again your talented like evan duffy
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davidsaunders0 1 month ago
How is it so amazing? I have taught myself everything I know about electronics, assembly language (z80, 6502, 65816, 680x0, 80x86, ARM, PDP, PDP-11, and a couple homebrews), Physics, and mathematics by self study and experimentation. Further I was at a disadvantage as I began studying these things when I was 8 years old and did not enter into university level studies until I was 11 years old.
As to this method of making NMOS transistors, it was fairly common in the early days of FETs.
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David Hagler 2 months ago
So I've been obsessed with a homemade relay based computer, .... I've changed my mind - I want to make a homemade transistor based computer ;)
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silectronics 3 months ago
you are the best girl....you keep making those wafers and i'll keep designing stuff with them....what a cool team we would make.........i have always wondered how bismuth could be used as a junction material given the weird properties it has with magnetic fields  and if such a type transistor could be made.....would the transistor behave......certainly laws of physics would no longer apply.......what do you think?........
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pedobear123 4 months ago
are you a wizard
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vivid554 4 months ago
Do you think you could develop the materials for a 3D printer to print them?
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hamidamini100 4 months ago
semiconductor device forum
semiconductordevice(dot)net
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