Gallium-nitride technology is used in TPY-2, the primary radar in Lockheed Martin’s Terminal High-Altitude Area Defense system.
Credit: Stocktrek Images Inc./Alamy Stock Photo
China banned the export of gallium, germanium and antimony to the U.S. on Dec. 3, directly targeting minerals integral to the aerospace and defense industry and raising the stakes in its intensifying rivalry with Washington. In a statement, the Chinese Commerce Ministry said the ban sought to...
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