This video is presented by the Southwest Center for Microsystems Education (SCME). Supporting materials can be downloaded from the SCME website (scme-nm.org).
From sand (Acid washed and purified) to make silica sand then ??? Melt to molten silica? To remove oxygen to make starting crystal? Is that correct? Trying to theoretically build a computer from stone age materials (Halite + electrolizing salt water for HCL and NaOH) Hydrochloric Acid made from Hydrochloric Gas and a water dripper
The seed crystal can be a chip from a previous make ingot (or boule). Using x-ray diffraction, one can determine the orientation of the chip and place it properly on the end of the rod so that the molten silicon atoms align themselves in the orientation one is trying to produce during the crystal pull process.
I'm amazed about the technology they had in 50's, I think that doing a diffraction analysis with x-ray (crystallography) with germanium crystal was complicated and difficult compared to current technology, monocrystalline seeds could form by melting a germanium or polycrystalline silicon, then cooling slowly and controlled?
I was observing and studying, video and books, I noticed the Japanese had little technological and scientific resource, after World War II Japan was economically devastated, and even so they made "homemade" germanium transistors by diffusion method, comparing with the US that had great scientists and had better equipment. I think it would be possible to make a homemade transistor, sorry ) lol
I need a: induction furnace, pure germanium or silicium, thermometer, inert gas, a long quartz tube, a monocrystalline seed, a seed holder, impurities for doping, a casio calculator, a clean room or so (I will not be too picky), and money ... to buy it all )))
Specializing in providing crystal high temperature pull tungsten wire rope, high temperature resistance, strong flexibility, please contact me if you want to know more, thank you
In this method is the silicone ingot one solid piece of crystal with a constant density throughout? Also, how is it not snapped under its own weight unless the silicone really is that strong and light?
It's Silicon not silicone. you might have silicone in your cupboard as eg polish. Yes and yes it is. It's like a lump of very solid rock so why would it snap. it's a bit like a big blob of solid glass in terms of strength and mass but its NOT glass. It's very heavy, not light.
