CHRIS KNAPTON / SCIENCE PHOTO LIBRARY CHRIS KNAPTON / SCIENCE PHOTO LIBRARY
Microchip manufacture. Technician in a clean room arranges semiconductor microchip wafers during the manufacturing process. The whole wafers, each containing several microchips (integrated circuits), are the discs at lower left. The microchips are made by impregnating a semiconductor with patterns of impurities which affect its electrical properties. The technician is wearing protective clothing to prevent any particles of dust from contaminating the wafers prior to their completion.
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