The global copper-clad laminate (CCL) market is experiencing a fundamental shift as AI computing demand forces Taiwan's PCB supply chain to urgently diversify its material sourcing — a move that has significant implications for hardware engineers worldwide. What's Happening According to DIGITIMES reporting on May 9, 2026, Taiwan's printed circuit board manufacturers are making an aggressive push to qualify second-source suppliers for copper-clad laminates and advanced prepreg materials. The trigger: surging AI server demand has created severe allocation constraints at major CCL manufacturers. AI server motherboards — particularly those supporting NVIDIA's B200 and H200 platforms — require ultra-low-loss laminates with Dk values below 3.3 and Df under 0.002 at 10 GHz. This highly specific material requirement has pushed suppliers like Mitsubishi Gas Chemical, Panasonic, and AGC into allocation mode. Why This Matters for PCB Engineers The structural shift isn't cyclical — it's architectural.…