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Electron beams are not cost efficient in photolithography. And it is proposed to use electron beams to treat water or garbage?

• nomel 3y ago
  This is like comparing the price of a sewing needle to a needle in an atomic force microscope. The beam is not what's expensive. It's the requirements set by what you're using the beam for. For photolithography you're steering the beams with such precision that it results in one of the most accurate manufacturing processes known to man, in vacuum chambers, performed in cleanrooms, involving purities in the tens of part per billion for the materials involved. That sort of accuracy isn't required when blasting garbage. Electron beams are how old CRT TV's worked, which were in nearly every home. If you have access to a vacuum chamber, you could order the parts off Amazon, if you want to DIY. You can also just go buy an electron beam welder and be done with it.
  • aj7 3y ago
    Ok, big vacuum systems, (you need about 1E-4 torr for an e-beam) are not efficient for garbage treatment. Your comment is a good one; although I thought it was the low throughput that made e-beam photolithography impractical. Ok, so we don’t need nm precision. Still an order of magnitude or more too expensive, I’m guessing. And water treatment…