Year-Over-Year Revenue Growth of 22% in 1H22; Gross Margin Expands   FREMONT, Calif., July 28, 2022 (GLOBE NEWSWIRE) -- AXT, Inc. (NasdaqGS: AXTI), a leading manufacturer of compound semiconductor wafer substrates, today reported financial results for the second quarter, ended June 30, 2022.   Management Qualitative Comments   “This is an exciting time in our business,” said Morris Young, chief executive officer. “Our strong execution on a number of fronts has set the ...