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Welding grade nitrogen. The regulator was a standard high pressure assembly. Don't tell the welding store you plan on hooking this to a furnace. They will not understand and may not sell you the items. Just say it's feed gas for your plasma cutter.

Flow meter. I used stainless tubing bent a few times so the heat would dissipate and not melt the flow meter.

Art store glass etchant for the sio2 etch.

Phosphorous source for the human running the furnace (oh and caffeine too)

This is all you need to build simple transistors and IC's at your home. This picture was taken at the Think conference by a good friend.
We spent the weekend making solar cells, single transitors(fets), pmos inverter(resistive load) and a full CMOS inverter.
To the left you can see the nitrogen gas bottle, some cassettes of wafers, toward the middle the linberg furnace and test equipment to the right.

Keep an eye out for more chip fab videos at vimeo.com/jeri

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Comments

jeri ellsworth says:

I found it interesting that the biggest reaction I got was when I made solar cells. I guess this is a good indicator what is on peoples minds these days.
Posted 15 months ago. ( permalink )

icis machine says:

that's quite a bit of progress since your talk a few years ago.

j.
Posted 15 months ago. ( permalink )

Deep Frozen Shutterbug says:

That´s pretty interesting stuff. I also watched your lecture at metalabs, which is a nice introduction to the diy semiconductor home fabrication. As electronics technician you usually only got taught how those components work and schematically look, but not how the production process is carried out.

Nice to see someone is actually doing it and making the knowledge available.
Posted 11 months ago. ( permalink )

linux-works says:

diy components? how cool is THAT! ;)

impressed.
Posted 11 months ago. ( permalink )

HBP says:

Very impressive.
Posted 2 months ago. ( permalink )

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Taken on September 7, 2008
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