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Organic flash memory on various flexible substrates for foldable and disposable electronics.

Seungwon Lee1, Hyejeong Seong2, Sung Gap Im2

  • 1School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.

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|September 30, 2017
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Summary

Researchers developed ultra-flexible organic flash memories using novel polymer dielectrics. These flexible memories offer long data retention and performance suitable for wearable electronics and paper-based applications.

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Area of Science:

  • Materials Science
  • Electrical Engineering
  • Nanoscience

Background:

  • The demand for flexible electronics necessitates flash memory adaptable to various substrates.
  • Developing high-performance flexible flash memory is challenging due to the lack of suitable flexible dielectric materials.

Purpose of the Study:

  • To create ultra-flexible organic flash memories with excellent performance and flexibility.
  • To address the limitations of current flexible dielectric materials.

Main Methods:

  • Utilized initiated chemical vapor deposition to prepare polymer dielectrics for dual dielectric layers (tunneling and blocking).
  • Fabricated organic flash memory devices on flexible substrates.

Main Results:

  • Demonstrated flash memories with flexibility down to a 300 μm bend radius.
  • Achieved projected data retention exceeding 10 years with industrial-standard programming voltages.
  • Successfully applied the memory technology to non-conventional substrates like paper.

Conclusions:

  • The developed polymer dielectrics enable high-performance, ultra-flexible organic flash memory.
  • This technology is feasible for diverse applications, including wearable and disposable electronics.