Exhibit 99.1 Atomera Provides First Quarter 2024 Results LOS GATOS, Calif. April 25, 2024 Atomera Incorporated (NASDAQ: ATOM), a semiconductor materials and technology licensing company, today provided a corporate update and announced financial results for the first quarter ended March 31, 2024. Recent Company Highlights · Strong progress with customers in all four market focus segments · Record number of commercial proposals in the last three months · Promising GaN results in a new product category, Compou ...