Silicon Wafer Metrology Gage

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  • On the move | News | The Engineer
    This makes them ideal for use in high-precision applications in industries such as optical lens or mirror polishing, lithography, precision gauging , metrology , silicon wafer manufacture and high-speed machinery.
  • Design for Manufacturability
    Metrology to be developed include the direct measurement of strain in a Si device and the corresponding … Data generation needs to use global measurements (e.g., unpatterned wafer bow to obtain directly the mechanical strain) and local … … μ-Raman, TEM, etc. to measure local strain in silicon ) in addition to new … … parameters (e.g., mobility gauged by strain).
  • Interferometric thickness calibration of 300 mm silicon wafers
    Optical tools are beginning to replace wafer flatness metrology tools based on capacitance gages or airflow gages. … needs of both wafer manufacturers and wafer testing equipment manufacturers for 300 mm silicon reference wafers with …
  • Optimization of LPCVD silicon nitride process in a vertical thermal reactor: use of design of experiments
    In order to characterizethe performanceof the metrology systems in a manufacturingenvironment and establish repeatability and reproducibilitycapability, a gauge capability study was conducted on a Tencor Surfscan 4500 and a Prometrix SM2OO/e. The Tencor Surfscan 4500 system for measuring particles of >0.3 um was determined to perform repeatable measurements for bare silicon and 1100 A silicon nitride film wafers .
  • Beyond biomedicine: a review of alternative applications and developments for optical coherence tomography
    … lute optical ranging (e.g. [13, 16, 70]) facilitated the operation of these metrology systems in industrial … Cur- rent examples can be found for the measurement of wafer thickness and curvature [71], for the evaluation of silicon V-grooves [72], for the characterisation of imaging … … level in glass-melting ovens [75] and for gauging in-line hot float …
  • Novel low coherence metrology for nondestructive characterization of high-aspect-ratio microfabricated and micromachined structures
    … standard well- established non-contact thickness gauges such as air pressure of capacitance gauges do not provide … While bulk of effort was concentrated in the area of metrology for manufacturing of utrathin Silicon wafers , other very promising areas include metrology of III-V materials mainly for opto-electronics and microwave applications and metrology of MEMs structures, which is subject …
  • Impact of sputter deposition parameters on molybdenum nitride thin film properties
    The film stress is measured applying the wafer bow tech- nique (contactless wafer geometry gauge MX 203-6-33 from E + H Metrology ). The bow of the silicon wafers is measured before and after the sputter deposition by capacitive sensors.
  • Optical contact and van der Waals interactions: the role of the surface topography in determining the bonding strength of thick glass plates
    As examples of such applications, Fabry–Perot optical cavities with end mirrors contacted to the spacer are reported [1–3]; laser crystals are contacted together to obtain large volume slabs for multi-kW operation [4]; in dimensional metrology , gauge blocks and plane parallel plates … Apart from the field of applied optics and related technologies, optical contact methods have been developed for silicon wafer bonding in the field of electronics [7–13].
  • A floating 3D silicon microprobe array for neural drug delivery compatible with electrical recording
    Therefore, the thickness of the waferstack is first determined by a contactless wafer geometry gauge (MX 203, E+H Metrology , Karlsruhe, Germany) before proceeding with the processing. Silicon (a) Thermal oxide + PECVD oxide . (b) .
  • Practical use of an in-line vacuum metrology cluster in a minifactory environment
    The spectral ellipsometer (SE) installed on the metrology module was originally developed for making rapid thickness measurements for real-time adaptive process control during single wafer processing.8 Using the speed of phase modulation, multichannel detection, and digital signal processing techniques, this … The results of a repeatability gauge study performed using this in situ SE on thermally grown silicon dioxide on silicon wafers has been reported.9 For oxide thicknesses ranging from 60 to 250 A the total repeatability was 0.26 A (1 …