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Related Concept Videos

Overview of Electron Microscopy01:25

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The wavelengths of visible light ultimately limit the maximum theoretical resolution of images created by light microscopes. Most light microscopes can only magnify 1000X, and a few can magnify up to 1500X. Electrons, like electromagnetic radiation, can behave like waves, but with wavelengths of 0.005 nm, they produce significantly greater resolution up to 0.05 nm as compared to 500 nm for visible light. An electron microscope (EM) can create a sharp image that is magnified up to 2,000,000X.
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In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...

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Multimodal Hierarchical Imaging of Serial Sections for Finding Specific Cellular Targets within Large Volumes
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Published on: March 20, 2018

Linnik microscope imaging of integrated circuit structures.

D M Gale, M I Pether, J C Dainty

    Applied Optics
    |November 12, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study validates a waveguide model for analyzing thick oxide lines on silicon using advanced microscopy. Experimental results closely match theoretical predictions, confirming the model

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    Area of Science:

    • Optics and Photonics
    • Materials Science
    • Semiconductor Manufacturing

    Background:

    • Accurate characterization of micro/nanoscale structures is crucial for semiconductor fabrication.
    • One-dimensional oxide lines on silicon are key components in microelectronic devices.
    • Existing models may require refinement for thick oxide layers.

    Purpose of the Study:

    • To experimentally validate a theoretical waveguide model for thick oxide lines on silicon.
    • To compare experimental intensity and phase images with model predictions.
    • To assess the model's accuracy across different imaging modes and polarizations.

    Main Methods:

    • Utilized a purpose-built Linnik interference microscope for high-resolution imaging.
    • Employed phase-shifting interferometry for precise interferogram analysis.
    • Acquired data for both TE and TM polarizations in bright-field scanning and confocal modes.

    Main Results:

    • Experimental one-dimensional intensity and phase images were obtained for oxide lines (>200 nm) on silicon.
    • Profiles derived from experimental data showed excellent agreement with predictions from the waveguide model.
    • High correlation was observed across various focal positions and imaging modes.

    Conclusions:

    • The waveguide model provides accurate predictions for thick oxide lines on silicon.
    • The model's validity is confirmed even with simplifying assumptions for computational efficiency.
    • This research enhances the understanding and characterization of critical semiconductor features.