China's supreme court bans Infineon from selling GaN power chips in China — market-leader Innoscience secures major victory in multi-region patent war - Tom's Hardware

China's Supreme People's Court recently upheld a ruling that prohibits Infineon from selling its disputed gallium nitride (GaN) power chips in mainland China, marking a significant victory for Chinese... Read original →

The Supreme People’s Court ruling doesn’t just block Infineon’s GaN chips in China—it triggers a cascade across the power delivery stack. NVIDIA’s 800V AI-rack designs must now fast-track Chinese alternatives, elevating Sanan and SMIC’s GaN-on-silicon foundry capacity to strategic assets. Compliance risks surge: multinationals lacking China-filed GaN patents face 6–12 month product delays and supply chain fragility. Competitors like TI or onsemi may fill Infineon’s void, but Silan and CR Micro are already shielded by domestic IP moats. Within 12–24 months, China’s GaN patent ecosystem will become a de facto gatekeeper for AI power systems—forcing foreign firms to either pay up or exit high-growth segments. This marks a pivot from Chinese semiconductor catch-up to standard-setting.