The heat-resistant material has civilian uses in products like LED screens and cellphone towers, and military applications in things like radar and satellite systems. Todd had been trained in the U.S. on proprietary equipment that produces the material but is restricted for export because of the potential military applications.
Huawei has said it had no cooperation with the Institute of Microelectronics related to gallium nitride. IME has said neither Todd nor the company was involved in any classified research.
Todd's parents had sought for the FBI to lead the investigation into the scientist's death, though the status of any assistance it has provided is classified.
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