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Laser Topography Instrument

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Surface metrology equipment is used to measure the surface finish and/or geometry of engineering components. Surface texture and topology characteristics include surface roughness, contour, form, waviness, and defects.
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  • LVDT Use in a Scanning Laser Tomography Instrument
    lvdt08 LVDT Use In A Scanning Laser Tomography Instrument. At one time, everyone feared a glaucoma test when visiting The final data is presented to the optometrist for analysis on a. the optometrist - squirming in your chair while waiting for familiar Microsoft Windows platform...
  • MICRO: Defect/Yield Analysis & Metrology
    technique generates and detects ultrasonic waves using laser light, and, in contrast to profilometry, which measures surface topography, it measures metal thickness directly.3 For CMP applications, commercially available optoacoustic metrology instruments can be used to characterize all process stages...
  • Using Space-Age Technology to Open A New Window into the World of Horticulture
    to that used to photograph the surface of Mars, agricultural scientists are peering into the surface topography of nursery crop leaves to see what pesticides and biological control organisms work best, says plant pathologist Charles R. Krause. He's with the ' Application Technology Research Unit...
  • Spatial Coherence in Interferometry
    in designing commercial interferometers is to reduce the intrinsic measurement noise in the complete band of spatial frequencies which the instrument is able to measure. Here the large coherence of the laser turns out to be a problem, 'collecting” artifacts associated with the optical surfaces used...
  • MICRO:Product Technology News (Sept '99)
    The SEMVision cX scanning electron microscope automatically reviews and classifies wafer defects in advanced semiconductor production lines. The system can examine up to 500 defects per hour and offers color multiple-perspective SEM imaging for enhanced topography and material information about...
  • MICRO: Defect Analysis and Metrology - Ge (Feb 2000)
    flagged by scanning laser scattering inspection tools. This system can also identify and classify defect types based on topography. Actual defect sizes measured by AFM-DF often differ from estimated defect sizes captured by scanning laser scattering inspection tools. Such errors, caused...
  • MICRO: Defect Analysis
    that the laser-based bright-field tool could detect voids as small as 30 nm. Since STI voids are typically associated with surface topography, their signal-to-noise level was improved dramatically by employing the 3-D channel. A proprietary spatial filtering method, optimized for the repetitive...
  • MICRO:Product Technology News (March '99)
    low-force, low-noise scanning for the nondestructive measurement of processed wafers. Additional features include a vibration isolation platform and noise dampening. Surface-imaging software displays wafer topography in three dimensions for surface area analysis. Available in diameters from 100 to 300...
  • MICRO: Spotlight
    contains chemical activator, inhibitor, planarizer (cAiP), which allows slurry to preferentially remove the protruding topography or active area in an STI pattern without dishing the recessed, or trench, area. The formulation also features AutoStop, which automatically stops removing the fill oxide...
  • MICRO: Products
    The WM-5000 unpatterned-wafer inspection system for 0.07-um design rules uses a 400-nm-wavelength laser light source (a violet laser diode). Distributed by Macrotron Process Technologies in Europe, the tool achieves very high detection sensitivity down to 0.041 um. The system can inspect 100 300-mm...

Engineering Web Search: Laser Topography Instrument Top

The Geoscience Laser Altimeter System (GLAS) Homepage
GLAS (the Geoscience Laser Altimeter System) is the first laser-ranging (lidar) instrument for continuous global observations of Earth.
NASA: ICESat
GLAS (the Geoscience Laser Altimeter System) is the first laser-ranging (lidar) instrument for continuous global observations of Earth, which will
LIDAR - Wikipedia, the free encyclopedia
A FASOR used at the Starfire Optical Range for LIDAR and laser guide star experiments is tuned to the sodium D2a line and used to excite sodium atoms
Laser rangefinder - Wikipedia, the free encyclopedia
The precision of the instrument is determined by the rise or fall time of the laser pulse and the speed of the receiver.
CSR Remote Sensing of the Environment
The LIDAR system combines a pulsed, solid-state laser, an inertial motion unit (IMU), and a geodetic GPS receiver in a compact and modular
altm
Rotating optics in the instrument's sensor head scans the laser across the ground, illuminating a swath under the aircraft.
MPS: BELA on BepiColombo
The Laser Altimeter topography data will be used to correct the gravity measurements for the effects of surface topography and thereby allow an
Building and Fire Publications
Characterization of Coating Microstructure Using Laser Scanning Confocal Microscopy.
Measurement Devices For Industry & Science :: Vendor...
BeamTrack, the industry's first integrated laser power/position/size sensors, ** NanoModeScan M2 laser beam propagation analyzer for propagation
JAXA | KAGUYA (SELENE) Observations with Laser Altimeter...
Laser Altimeter (LALT) The Laser Altimeter (LALT) is a ranging instrument that emits a laser beam to the lunar

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