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Research dossier · version 1 · updated Oct 30, 2026

Semiconductor Device Frontiers: State of the Field (October 2026)

Covers gate-all-around and two-dimensional channel transistors, ferroelectric and oxide gate stacks, backside power delivery, and memristive and neuromorphic hardware, as of October 2026. The key takeaway is that device progress is now limited less by single-device switching than by contacts, band-edge disorder, variability and thermal design, so claims that ignore these constraints should be read with care.

3,506 words62 sources29 evidence-mapped claims9 benchmarks18 timeline events✓ citation-verified Oct 30, 2026

AI-assisted synthesis of the cited literature, independently fact-checked against its sources; not peer reviewed.

Contents

  1. Executive summary
  2. Background and core concepts
  3. Timeline of key milestones
  4. State of the art
  5. Gate-all-around and three-dimensional channel control
  6. Two-dimensional channels, contacts and growth
  7. Oxide channels and gate stacks
  8. Memristors and in-memory computing
  9. Neuromorphic systems
  10. Backside power delivery and packaging
  11. Quantitative benchmarks
  12. Open problems and active debates
  13. Major programs and players
  14. Outlook: what to watch (next 12-18 months)
  15. Key papers
  16. Glossary

Sample findings

  • Gate-all-around devices surround the channel with the gate on all sides; nanowire and nanosheet variants stack channels vertically.
  • Conventional thermionic transport limits subthreshold swing to about 60 mV/dec at 300 K.
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