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Pioneering Ultra-Low Power Computing: A Disruptive Integrated Mechanics Paradigm

Project description

Durable solutions for nanoelectronics systems

Nanoelectromechanical (NEMS) switches, which consume far less power than traditional transistors, could transform energy-efficient electronics. However, challenges related to wear, adhesion and electrical resistance at contact points limit their widespread adoption. With the support of the Marie Skłodowska-Curie Actions programme, the PULPCDIMP project aims to develop durable oxide coatings for NEMS interfaces. Οxide formation is typically seen as a drawback, but PULPCDIMP will use it for NEMS switch interfaces as oxides offer high strength, resistance to creep and fatigue, and desired electrical properties. Researchers will conduct materials genome research to identify suitable oxides with distinct conduction mechanisms and advanced characterisation techniques to assess coating quality. Material performance will be tested using in situ atomic force microscopy. Simulations will provide atomic-level insights to guide experiments.

Objective

Nanoelectromechanical (NEMS) switches offer 10 to 100 times less power consumption than conventional transistors, but their widespread adoption is hindered by challenges related to adhesion, electrical contact resistance (ECR), and in-operando property evolution. This project aims to address these issues by developing reliable interface coatings capable of withstanding the harsh conditions of NEMS interface, such as high stresses, repetitive cycling, and Joule heating. Oxide formation on metal contacts is unavoidable, unlike tribopolymers. Though they are typically insulators, but can conduct electricity via electron dispersion and are proven effective in harsh environments. Oxides also offer advantages over metals, including high strength, low adhesion, and resistance to creep and fatigue, and can replace metal contacts completely. The proposal turns the liability into an advantage by considering oxides as a potential solution for NEMS switch interface. The project will use a materials genome search to select hard oxides with distinct conduction mechanisms—semimetals (RhO2, RuO2, TiOx), semiconductors (TiO2), and oxides with oxygen vacancies (Ta2Ox). Advanced characterization techniques such as TEM, XRD, and XPS will assess coating quality. To streamline the complex fabrication and testing process, an innovative in-situ AFM method with integrated plasma cleaning (to ensure clean environment), and controlled environment will be developed, enabling real-time monitoring of asperity interactions. This approach will directly link nano-asperity responses to actual NEMS interfaces. MD simulations will guide experiments, provide atomic-level insights, and develop semi-empirical prediction models for further development of NEMS switch architecture. This project aims to revolutionize energy-efficient computing by addressing tribo-chemo-electro-mechanics challenges at the NEMS interface, driving advancements in communication, transportation, sensing, medicine, and defense.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE
Net EU contribution
€ 276 187,92
Address
SOUTH KENSINGTON CAMPUS EXHIBITION ROAD
SW7 2AZ London
United Kingdom
Region
London Inner London — West Westminster
Activity type
Higher or Secondary Education Establishments
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Total cost
No data