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  • Microsurface Metrology: The Key to Process Control
    of the imperfections in the machine tools used to process the surface. This may be inherent. to the machine tool, and may be controllable. Waviness is a result of the condition of the machine tool, and may be able to be controlled by changing the. speed and feed rate of the machine, thus changing the vibration pattern
  • Surfaces and their Measurements
    Surfaces and their Measurements. This book is primarily intended to help designers and inspectors to understand the fundamentals of surface metrology and, where appropriate, point to relevant procedures for specification. Books24x7 EngineeringProTM from Books24x7
  • Advances in Interferometric Metrology
    in Interferometric Metrology. James C. Wyant. Optical Sciences Center, University of Arizona, Tucson, AZ 85721. jcwyant@optics.arizona.edu, http://www.optics.arizona.edu/jcwyant. ABSTRACT. Modern electronics, computers, and software have made interferometry an extremely powerful tool in many fields
  • MICRO: Defect/Yield Analysis & Metrology
    A joint study reveals that optoacoustic metrology can be used to optimize chemical-mechanical planarization processes and track film-thickness variations during production. ith the IC industry rapidly switching to copper for circuit interconnects, the lack of etching techniques to remove copper has
  • Measuring Surface Slope Error on Precision Aspheres (.pdf)
    . There are a number of different metrology tools which can be used to measure the surface slope of optics. Table 2 ­ Metrology Instruments for measuring surface slope errors. Examples of commercial. Instrument Comments instruments. Contact profilometers. Profilometers usually measure. Taylor Hobson, Mititoyo
  • Apples, Oranges and Surface Finish Parameters
    , that is attached to the. bottom of the probe that traverses along the surface of the part. Because the skid. follows the general profile of the part, the stylus registers only higher-frequency. roughness characteristics--in other words, tool marks. Thus, skidded gages
  • MICRO:February 1998:Anaysis & Metrology Post-CMP; by Cheri Dennison, (p 31)
    used primarily for polishing intermetal dielectric (IMD) layers and then for treating tungsten plugs, CMP is being used in additional process segments, in particular in shallow trench isolation (STI). Because CMP inevitably creates substantial amounts of surface contaminants and can introduce many
  • Geomagic Studio 10 Improves Your Workflow
    a physical part, rather than to create ideal surface geometry. Geomagic Fashion fills this process gap, so let's explore how it works and what it enables you to do. Here, regions of the model are divided by classification for optimized, modifiable surfaces. Once you have completed the scan, cleaned up

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