How To Make A CPU
3,289,912
Published 2021-11-04
1) Get a rock.
2) Smash the rock.
3) Now you have 98% concentrated silicon dioxide. Purify it to 99.9% pure silicon dioxide.
4) Purify it further to 99.9999999% polysilicon metal.
5) Put the polysilicon ingots into a crucible.
6) Heat the silicon ingots to 1698 °K.
7) Take a small seed monocrystal and dip it into the vat of molten silicon.
8) Slowly pull the crystal out as it cools.
9) Now, you've a monocrystal of pure silicon. Cut it into thin slices.
10) Now, you've got pristine freshly-cut silicon wafers. Optionally, dope them with Boron, Phosphorus or another dopant.
11) Put photoresist on the wafer.
12) Take a chromium-etched photo-lithographic quartz mask with your desired circuit pattern and shine a laser beam through it to project the circuit pattern onto the wafer.
13) The locations of the shadows produced by the photo-mask will control where the photo-resist is chemically changed on the surface of the silicon wafer (depending on whether you used positive or negative photoresist).
14) Now, develop the photoresist.
15) Acid etch the exposed parts of the wafer.
16) Perform countless iterations and repetitions of homo-epitaxy, hetero-epitaxy, pseudo-epitaxy, diffusion doping, copper interconnect layers, chemical mechanical polishing, photoresist applications, acid etching, and photomask exposing to build up the desired features on the wafer.
17) Now you've got a finished silicon wafer. Cut it into pieces.
18) Now you've got un-packaged silicon dies. Locate the pads on the silicon chip, and attach bond wires, or use the flip-chip method as is done now for most modern processors.
19) Use the bond wires or solder balls to provide an electrical connection between the pins on the chip package, and the pads on the silicon die.
And that's how you make a CPU.
A text-based version of this video can be found here:
blog.robertelder.org/how-to-make-a-cpu/?utm_source…
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All Comments (21)
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Haha true
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Find rock. Give it life. Play games on it.
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"Dumb as a rock" doesn't sound quite as insulting anymore.
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Nothing's changed, we're still playing with rocks.
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CPU making is a literal "Any sufficiently advanced technology is indistinguishable from magic" for me
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I'm glad that I know how to make a C now.
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Teacher: The task isn't that hard The task:
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Troll: You play on a Potato! Me: Actually a Rock
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I will never look at rocks the same way again
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can't find rock
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TONY STARK WAS ABLE TO BUILD THIS IN A CAVE
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the cut on the end made it a masterpiece
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That is the most simplified explanation of making an IC chip I have ever watched. Bravo! 99.9% of the details were left out but that is the gist.
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AND THAT'S HOW YOU MAKE A C...
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>get a rock >melt rock >inscribe ancient runes with powerful magic onto rock >rock can think ?????
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First time making a CPU, failed the hetero-epitaxy but second try was a success. We need more DIY youtubers like you. You've made it so easy to make a CPU at home just by using a rock.... May the technologically advanced lifeforms of the universe bless you with some more knowledge to excrete onto us 😊.
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Instructions unclear I now have lots of piles of smashed Rock
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Ah man, just created 100% pure silicone. Guess I have to start all over again
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Instructions unclear, made GPU instead.
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Dude, CPU/GPU chips are so underrated. Used every day and largely overlooked. I believe they will look back on the tech in 100 years and marvel just as we would marvel at what they've come up with down the road. It is a revolution. An incredible development and accomplishment of the species.
