Brain-machine interface: ALLOS’ micro LED epiwafers are used for in-vivo application by Toyohashi University

Far beyond typical applications for micro LEDs, like consumer device displays, super large TVs or augmented reality displays, Toyohashi University of Technology, Japan uses the technology for brain-machine interfaces. Prof. Hiroto Sekiguchi’s group has developed a neural probe for studying brain functions using ALLOS’ micro LED epiwafer material. To avoid brain damage during the test, high-efficiency of micro LEDs is key in order to reduce harmful impact from heat coming from conversion losses. Furthermore, for this novel application manufacturing challenges had to been overcome, where ALLOS’ GaN-on-Si technology plays a key role. In particular it was important to integrate with mature silicon-industry processes in order to achieve highest accuracy and reliability standards.

Further information you can read in the article co-authored by ALLOS’ co-founder and CTO Dr. Nishikawa in the Japanese Journal of Applied Physics (Jpn. J. Appl. Phys. 60, 016503 (2021)).