Is it possible to make your own ICs at home from scratch?

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Hi,

Is it possible to make your own simple ICs from scratch at home? I am talking about simple stuff like single logic gates and a simple transistor. I do not need the pin packing and pins, I am just talking about the core silicon.

I have a CNC machine and 3D printer.

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wow, thanks for the links.

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Wow. Very cool links.

Looks like Ms. Fried, (Adafruit), has some competition!

JC

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Wow. I was going to say you're mad for even thinking about it, then awneil posts how to do it!

If you don't know my whole story, keep your mouth shut.

If you know my whole story, you're an accomplice. Keep your mouth shut. 

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Torby wrote:
awneil posts how to do it!

For the avoidance of doubt, all I did was post the links - it's Jeri Ellsworth who shows how to do it!

http://en.wikipedia.org/wiki/Jer...

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillatorhttps://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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Double wow!

Four legs good, two legs bad, three legs stable.

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Incredible! Never would have thought that was possible.

Jim

 

Until Black Lives Matter, we do not have "All Lives Matter"!

 

 

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So, what use is a home made transistor? Probably not much, but what a cool thing to know how to do!

If you don't know my whole story, keep your mouth shut.

If you know my whole story, you're an accomplice. Keep your mouth shut. 

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Would probably be the weirdest skill to have for a prepper.

Jerri is awesome though, really worth watching her tell her story. Also her latest project "CastAR" is really something.

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The first ICs were discrete components hand-soldered to each other and then epoxied into a rectangle shape with the necessary pins sticking out. Maybe with some robotic arms you could program them to build entire circuits held together this way without a circuitboard.

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To me the amazing thing is the working out of the solid state theory for band structure and the subsequent first order approximations of how a junction of dissimilar materials could interact in a useful way. I can only think the most likely explanation would necessarily involve some sort of external revelation.

Once you accomplish the manufacture of pure materials and controlled dopants the rest is creative engineering. Kudos to Jerri for her her skills in that.

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Well, you'll notice that she BUYS her wafers.

If you don't know my whole story, keep your mouth shut.

If you know my whole story, you're an accomplice. Keep your mouth shut. 

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For a prepper skill, better go home-made vacuum tubes:

http://www.youtube.com/watch?v=EzyXMEpq4qw

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If you don't know my whole story, keep your mouth shut.

If you know my whole story, you're an accomplice. Keep your mouth shut.