The battle between the U.S. and China over computer-chip makers has expanded to a new front: the companies that test the technology. Citing national-security concerns, a U.S. semiconductor-testing company, Cohu Inc., is mounting a quiet campaign to derail the planned $580 million sale of an American rival, Xcerra Corp., to a Chinese state-backed group, according to documents reviewed by The Wall Street Journal. The U.S....

Source: Wall Street Journal August 15, 2017 16:30 UTC