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Visitech Acquires Keynote Photonics: Week in Brief: 07/15/22

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REDONDO BEACH, Calif., July 15, 2022 — Northrop Grumman Corp. completed the preliminary design review for a high-energy laser prototype that will feature an architecture scalable to more than a megawatt for the U.S. Department of Defense. In March 2021, the U.S. Department of Defense awarded Northrop Grumman a $72 million contract under the High Energy Laser Scaling Initiative (HELSI) to demonstrate a high-energy laser prototype using Northrop Grumman’s coherent beam-combining technology. The company will test the prototype at progressively higher powers later this year to prove the coherent beam-combining design. ...Read full article

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    Published: July 2022
    Glossary
    semiconductor
    A semiconductor is a type of material that has electrical conductivity between that of a conductor and an insulator. In other words, semiconductors have properties that are intermediate between metals (good conductors of electricity) and insulators (poor conductors of electricity). The conductivity of a semiconductor can be controlled and modified by factors such as temperature, impurities, or an applied electric field. The most common semiconductors are crystalline solids, and they are...
    lithography
    Lithography is a key process used in microfabrication and semiconductor manufacturing to create intricate patterns on the surface of substrates, typically silicon wafers. It involves the transfer of a desired pattern onto a photosensitive material called a resist, which is coated onto the substrate. The resist is then selectively exposed to light or other radiation using a mask or reticle that contains the pattern of interest. The lithography process can be broadly categorized into several...
    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. ...
    ultraviolet
    That invisible region of the spectrum just beyond the violet end of the visible region. Wavelengths range from 1 to 400 nm.
    chip
    1. A localized fracture at the end of a cleaved optical fiber or on a glass surface. 2. An integrated circuit.
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