Semiconductor wafer

Semiconductor wafer

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Credit: MANFRED KAGE/SCIENCE PHOTO LIBRARY

Caption: A single circular semiconductor wafer, comprised of numerous individual Siemens 4 Megabyte (Mb) integrated circuits that will ultimately be used as computer memory devices. Individual integrated circuits (chips) are made from circular wafers, initially cut from a cylinder of semiconductor material such as silicon or gallium arsenide. The complex pattern of circuits that comprises each chip is built-up in a series of processes involving masks, deposition of insulators and etchings. Finished chips are eventually diced from the wafer prior to packaging.

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Keywords: 4mb memory chip, 4mb memory chips, chip, electronic, electronics, high-tech, integrated circuit, microchip, technology, wafer

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