Samsung's GaN setback puts foundry shift in focus

Samsung’s pivot to GaN foundry services signals a structural setback for its IDM model in power semiconductors. Technically, this accelerates the diffusion of 8-inch GaN-on-Si processes into mature foundries, forcing MOCVD equipment and substrate suppliers to realign capacity. Downstream, power module makers may benefit from faster qualification cycles due to process standardization. From a compliance standpoint, U.S. CHIPS Act incentives favoring wide-bandgap semiconductors make vertical integration geopolitically costly; outsourcing mitigates export control exposure. Competitors like TSMC and Infineon will likely double down on hybrid IDM-foundry strategies, especially in automotive-grade GaN where IP moats matter most. Over the next 18 months, the battleground will shift from discrete devices to ecosystem control—PDK maturity, reliability databases, and IP libraries will define who leads the next era of power electronics.