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Raytheon Company has appointed John D. Harris as vice president of contracts, replacing Richard Foley, who retired after 36 years of service.   . . .   Ultratech Inc., a supplier of photolithography systems used to manufacture semiconductors and nanotechnology devices, has received orders for its Saturn Spectrum 3e bump lithography stepper from four liquid crystal display (LCD) driver manufacturers and gold bump foundries located in Japan, China and Taiwan. The steppers, which will be used for gold bump applications, began shipping early this year.   . . .   The Optical Society of America has...Read full article

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    Published: June 2003
    Glossary
    nanotechnology
    The use of atoms, molecules and molecular-scale structures to enhance existing technology and develop new materials and devices. The goal of this technology is to manipulate atomic and molecular particles to create devices that are thousands of times smaller and faster than those of the current microtechnologies.
    photolithography
    Photolithography is a key process in the manufacturing of semiconductor devices, integrated circuits, and microelectromechanical systems (MEMS). It is a photomechanical process used to transfer geometric patterns from a photomask or reticle to a photosensitive chemical photoresist on a substrate, typically a silicon wafer. The basic steps of photolithography include: Cleaning the substrate: The substrate, often a silicon wafer, is cleaned to remove any contaminants from its surface. ...
    bump lithography stepperindustrialnanotechnologyNews BriefsOptical Society of AmericaphotolithographyPhotonics Tech BriefsRaytheonsemiconductorsUltratech

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