Ah, they make the tiny brains for your phones and computers! Inside our cleanroom, we draw microscopic circuits on silicon wafers, layer by layer, with light and chemicals. The water must be purer than hospital-grade to avoid even a speck of dust ruining a crore-worth wafer, and vibrations? A single tremor can blur those lines, like a shaky hand during my son's engineering drawing exam! I know because my night shift is the quietest, and my manager always says, "Betadine, your steady hands during the 2 AM etching cycle give us the best yield.
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