Diamond Foundry unveils world’s first 200mm single-crystal diamond wafer

Diamond Foundry has unveiled the world’s first 200mm single-crystal diamond wafer, a milestone it says could transform semiconductor cooling and boost AI chip efficiency and miniaturization. The wafer scales diamond’s exceptional thermal conductivity to a standard 200mm format used in chip manufacturing, addressing heat dissipation as a key bottleneck for high-performance AI processors. The development matters because rising AI compute demands are pushing conventional cooling materials to their limits, and diamond substrates could enable denser, faster chip designs. What to watch next is whether chipmakers qualify the material for volume production and how quickly Diamond Foundry can ramp manufacturing and bring down costs.