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Microelectronic devices without semiconductors

10.11.2016

Scientists at the University of California San Diego (UCSD) have created the first microelectronic device that does not use a semiconductor material.

Under the influence of low voltage (up to 10 V) and radiation of a low-power infrared laser, the conductivity of the device increases by 1000%.

The secret of development is in the metamaterial, which was formed from gold on the surface of a silicon wafer, which plays the role of a passive substrate.

The researchers see parallels with vacuum tubes in their development, noting that the new technology will not completely replace semiconductor technology, but will overcome its inherent limitations in terms of operation at high frequencies and high powers.

The metamaterial created at UCSD has confirmed the viability of the idea. For practical applications, other similar metamaterials optimized for specific types of microelectronic devices can be created.

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