# Carnegie Mellon builds molybdenum-disulfide transistors with channels below 5 nanometres

> Carnegie Mellon University announced research on 15 October into transistors made from the two-dimensional semiconductor molybdenum disulfide. The Nature Communications study built devices with physical channel lengths below 5 nanometres and, according to the university, switching performance beyond silicon’s theoretical limit at a comparable size.

- Canonical URL: https://newsverum.com/en/news/carnegie-mellon-molybdenum-disulfide-sub-five-nanometre-transistors-2026
- Publisher: Newsverum
- Section: Technology
- Country: United States
- Published: 2026-10-16T10:36:24+00:00
- Updated: 2026-10-16T10:36:24+00:00
- Source review period: 2026-10-16
- Other editions: [Türkçe](https://newsverum.com/tr/news/carnegie-mellon-molybdenum-disulfide-sub-five-nanometre-transistors-2026.md), [العربية](https://newsverum.com/ar/news/carnegie-mellon-molybdenum-disulfide-sub-five-nanometre-transistors-2026.md), [Français](https://newsverum.com/fr/news/carnegie-mellon-molybdenum-disulfide-sub-five-nanometre-transistors-2026.md), [Español](https://newsverum.com/es/news/carnegie-mellon-molybdenum-disulfide-sub-five-nanometre-transistors-2026.md), [Deutsch](https://newsverum.com/de/news/carnegie-mellon-molybdenum-disulfide-sub-five-nanometre-transistors-2026.md), [Português](https://newsverum.com/pt/news/carnegie-mellon-molybdenum-disulfide-sub-five-nanometre-transistors-2026.md)

*The source does not state the event date; the period shown is the source review period.*

An air gap beneath the channel helps the gate control current and reduce leakage. The team fabricated transistors across a four-inch wafer. This is a research demonstration: the technology is not yet ready for commercialisation and has not replaced silicon in mass production.

## Data

### Semiconductor research

MoS₂ device demonstration

Methodology: Records the university announcement date; experiment day unspecified. Research is not classified as commercial production or chip shipments.

| date | label | description | status |
|---|---|---|---|
| 2026-10-15 | Semiconductor research | MoS₂ device demonstration | occurred |

Sources: <https://www.ece.cmu.edu/news-and-events/story/2026/10/beyond-silicon.html> · Download data: [JSON](https://newsverum.com/api/v1/articles/carnegie-mellon-molybdenum-disulfide-sub-five-nanometre-transistors-2026/data/source-record?lang=en&format=json) · [CSV](https://newsverum.com/api/v1/articles/carnegie-mellon-molybdenum-disulfide-sub-five-nanometre-transistors-2026/data/source-record?lang=en&format=csv)

## Sources

- [Carnegie Mellon University](<https://www.ece.cmu.edu/news-and-events/story/2026/10/beyond-silicon.html>) (Source checked: 2026-10-16; Published: 2026-10-15)

---

Cite the canonical URL above. [Editorial standards and corrections](https://newsverum.com/en/editorial)