Xidian University Team Unveils Low-Cost SPAD Chip for Short-Wave Infrared Detection

Published: Apr 02, 2026 10:01 (GMT+8)

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It was learned from Xidian University that the team led by Professor Hu Huiyong at the university successfully developed a single-photon avalanche diode (SPAD) chip based on silicon-germanium technology, significantly reducing the manufacturing cost of short-wave infrared detection technology. This breakthrough is expected to enable high-end chips that originally cost thousands of dollars per unit to enter fields such as smartphones and automotive LiDAR at just one percent of the cost.

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