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Electronic Material Characterization

Summary

To provide the necessary information for electronic material manufacturers to predict how and when failures will occur and enable lifetime analysis appropriate for their desired performance level through electrical, thermal and mechanical stress testing. The project focuses at present on 2D materials but develops core competencies that could be applied to a variety of electronic materials now and in the future.

Description

Manufacturing optimized devices that incorporate newly-emerging materials requires predictable performance throughout device lifetimes. Unexpected degradation in device performance, sometimes leading to failure, is often traceable to poor material reliability. Reliability is rooted in the stability of the atoms making up a material, and is determined by geometry, microstructure, chemistry, dimensional scale, proximity to other materials, and exposure to external stressors. Integration of powerful characterization techniques and reliability tests of materials under operational conditions improves fundamental understanding and accelerates development of highly-reliable materials and devices.

InSe with diffraction pattern
STEM-in-SEM is used to examine the diffraction pattern at a defect in InSe

We develop relevant test approaches that can be readily adapted to the diverse, rapidly-moving environment of the 2D materials and microelectronics industry.  We target the following:

  • Techniques to measure atomic structure, crystallographic phase, grain structure, crystallographic texture, crystal defects, lattice strain, contaminants
  • Imaging of 3D assemblies of 2D materials: moving toward characterization in real-life applications
  • Time-resolved measurements of material performance and degradation under operational conditions
  • Application of reliability physics concepts to predict material degradation

NIST has field emission scanning electron microscopes, focused ion beam microscopes, high resolution transmission electron microscopes, electrical testing systems, nanomaterial synthesis facilities, and spectroscopy instrumentation.

 

National Research Council Post-Doctoral Research Opportunities: (you will be leaving NIST website when selecting this link)

Nanometer-Scale Characterization and Reliability of 2D Materials 

Transmission Scanning Electron Microscopy for Materials Characterization 

Created April 27, 2021, Updated May 4, 2021