Making Microchips at Home - Cooking with Jeri Part1

[VINICIUSBH100]

can we use this tecniques to make a solar cell?

[ngneer999]

I'm running a very similar oxidation furnace right now and really it's not much more sophisticated. It has boiling water and 1000C. Don't allow dopants or metals in mine though. How long did you run your oxidation? I'm running 17.5 hours for about 2um. Also note that I'm not scolding you about the HF.

[jeriellsworth]

@ngneer999 I'm running oxidation for 6hrs. I have extra tubes for mine if I wanted to keep dopants separate. I don't at the moment.

[ngneer999]

@jeriellsworth About 1.2um ideally.

[cpypcy]

What's the use for home made microchips?

[jeriellsworth]

@cpypcy Education, hobby, etc. What is the use for making anything at home that can be done better in mass production?

[MegaAstrodude]

@cpypcy,

Custom chips can be made at home.

[Racius19]

Where did you get a waffer ? I work in layout for ON Semiconductor in Czech Republic and they refused giving me old, scratched, smudged representative waffer samples argumenting that it is protected by trade secret :)

But anyway, your work is great, I was wondering about making my home-made semiconductor parts and now, I feel determinedly for it :)

[jeriellsworth]

@Racius19 I get the wafers from ebay.

[RussellTuan]

as a former equipment engineer of mass production of semiconductor,i solute to you.good luck!!

[jeriellsworth]

@RussellTuan It's not luck. You should watch my other videos where I show working devices. I've made functional devices for the last 3 years.

[enliteneer]

The first step is to remove any oxidation (hence the HF bath), but then it seems the second step is oxidize the heck out of it (hence the heat/kettle).

Is it simply to make it uniform oxidation, or is there something else that's happening in between?

[jeriellsworth]

@enliteneer Thick oxide is the mask for later steps.

[Angelsigns2012]

That is CRAAAAzzzy. Making microchips at home? I have a hard time baking bread. LOL!

[NoWattz]

When performing the hot point test, at what temperature should the soldering iron be at? Also, regarding the soldering iron, should it be an isolated, rather than grounded, tip?

[jeriellsworth]

@NoWattz I didn't check the temperature, but it was hot enough to melt solder. The tip can be grounded or not, because the meter is not grounded.

[MrMegaelf]

this is so awesome, i worked in the epitaxie and scanning tunneling microscope at the university and seeing that this can be done at home just opens my heart :)

[moveaxebx]

Jeri don't die, I need the second part very bad!

[whisk0r]

Grow Oxide, Grow!

Good stuff Jeri!

tymkrs

[vectrexer]

I know you love to show us your burned fingers Jeri, but next time how about a ready-Jeri-made connection point on the soldering iron?

[andrewyaoauatauabaea]

This is very interesting and well explained.

[AntiProtonBoy]

Unrelated: Plz do a tear-down session of that IBM thermal cam on the floor...

[PhattyMo]

Anyone that asks "What good is it?" has obviously missed the friggin point!

[excavatoree]

Is that a Tek 575?

[RasmusSE]

Wow. This is so brilliant that I don't know where to begin. Is there anything you cannot master in your home lab? You must seriously be one of the most talented persons alive on this planet. *speechless*

[jacgoudsmit]

Awesome video!

By the way, if you have an accident with the HF and your bones turn to Jell-o you can always start another Twitter account called @CherryJellosworth. ;-)

[viscountalpha]

I love the aquafina plug in there.

[FlyByPC]

This is awesome -- creating microchips with Aquafina, rust remover, and a steam kettle. Great explanation, and as usual, it looks like you've found a way to get results for cents on the dollar. (Bus turn warning systems, anyone?) Thanks!

[khisanth75]

Thanks for posting this Jeri, i am fascinated to see how components are actually made. Looking forward to the next one.

Really interesting stuff, thanks

[Xinfinitude]

I know nearly nothing about electrical engineering, and yet I still find these videos interesting.

[w2aew]

Excellent! Can't wait for the next installment, and especially seeing a ring oscillator singing at the end. But, where's the apron and chef's hat?

[kmwatts]

It's cool seeing someone do this at home. I work with concentrated HF every day at work, it CAN certainly be dangerous (and unlike most acids you might not feel it when it is on your skin) but as you said use common sense and proper precautions and you will be fine. Looking forward to seeing the rest of your process :)

[robertsulley]

How slow is 'really slow'? I'm looking forward to seeing how you put your homemade transistor in an SOT23!

[BarsMOnster]

Natural oxide width on Si is ~2-3nm in normal conditions.

[ZXAmiga64]

extremely interesting video, thanks for taking the time to upload.

[Guysm1l3y]

"My bones do feel a little gelatinous though" hee hee! Best cooking show ever,

[sm4wwg]

Excellent! :D

[Nephrex]

Screw the doubters... you have re ignited my interest in electronics!