Science, Space and Technology News 2024
New microcapacitor technology developed at Berkeley Lab enhances energy storage capabilities on microchips, marking a major advancement in microelectronics. Credit: SciTechDaily
Researchers are striving to make electronic devices smaller and more energy-efficient by integrating energy storage directly onto microchips. This approach minimizes the energy losses that occur when power is transferred between the different device components. In order to be effective, on-chip energy storage must be capable of storing a substantial amount of energy in a compact space and delivering it rapidly. Existing technologies, however, cannot meet these requirements.
Microcapacitors made with engineered hafnium oxide/zirconium oxide films in 3D trench capacitor structures — the same structures used in modern microelectronics — achieve record-high energy storage and power density, paving the way for on-chip energy storage. Credit: Nirmaan Shanker/Suraj CheemaCapacitors are one of the basic components of electrical circuits but they can also be used to store energy.
To scale up the energy storage capability of the films, the team needed to increase the film thickness without allowing it to relax out of the frustrated antiferroelectric-ferroelectric state.
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