en.Wedoany.com Reported - Researchers from the Massachusetts Institute of Technology (MIT), in collaboration with multiple institutions, have developed a new microchip manufacturing technology that can enhance the efficiency of future communication systems—including 6G networks, satellite communications, and radar systems.

The technology is based on gallium nitride (GaN), a material considered a leading candidate to replace silicon in high-frequency, high-power electronics. GaN can operate at higher voltages and frequencies, but has long been plagued by a critical issue: its devices generate significant heat during operation.

To address the heat dissipation problem, researchers turned to artificially grown single-crystal diamond, which boasts record thermal conductivity and can effectively dissipate heat generated by electronic components.

Unlike traditional methods that deposit a diamond layer on top, the research team directly embedded miniature GaN transistors into an ultra-thin diamond substrate. To achieve this, they used femtosecond lasers to precisely machine microstructures and mounting positions for circuit components on the diamond.

The resulting architecture enables more uniform heat distribution, nearly eliminating localized overheating. This allows the transistors to operate near their limits while maintaining stability and reliability.

Based on this technology, the researchers assembled a power amplifier for wireless communication systems. Test results showed that the amplifier achieved higher output power, gain, and overall efficiency compared to similar solutions reported in the literature.

According to the research team's assessment, this architecture can be applied not only to telecommunications and future 6G networks, but also to high-power radar, space communication systems, industrial drones, and data center infrastructure. In particular, its improved heat dissipation capability can reduce energy loss and operational costs in large-scale computing systems.

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