Why are PCB prices rising along with optical module prices

The surge in optical module and PCB prices is driven by explosive AI demand, technological upgrades, supply bottlenecks, and rising raw material costs.Optical Module Price Drivers1. Exploding AI Demand and Data Center Expansion The rapid growth of AI computing has significantly increased demand for high-speed optical modules, particularly 800G and 1.6T modules. Cloud vendors and data centers are expanding infrastructure, leading to a short supply of these advanced modules . 2. Technological Upgrades Optical modules are evolving from 400G to 800G, 1.6T, and even 3.2T. Higher-speed modules require upgraded PCBs with more layers, higher-grade materials, and advanced manufacturing processes. This increases the unit price independently of shipment volume, with 800G modules costing 50%-100% more than 400G modules . 3. Supply Bottlenecks and Capacity Constraints High-end production capacity is limited, and orders are often scheduled months in advance. Advanced packaging technologies like CoWoS are concentrated among a few manufacturers, restricting output and creating short-term scarcity . 4. Raw Material Costs and R&D Investment Key materials such as high-speed optical chips and indium phosphide substrates have seen sharp price increases, with 2-inch InP substrates rising by 50%. Leading manufacturers also invest heavily in R&D, which adds to production costs and strengthens pricing power .PCB Price Drivers1. AI Infrastructure Demand The surge in AI server and data center construction has driven unprecedented demand for high-end PCBs, particularly Copper Clad Laminates (CCL). This has pushed the global PCB market past $100 billion, with raw material prices rising 20%-40% in early 2026 . 2. Technological Upgrades and Unit Value Growth As optical modules upgrade to higher speeds, the internal PCBs require more complex designs and higher-grade laminates. For example, 400G PCBs cost around $55, while 800G and 1.6T PCBs increase by $15–$30 per unit . 3. Supply Chain and Production Allocation PCB manufacturers prioritize high-margin AI server laminates, creating artificial scarcity for standard-grade products. Lead times have extended to 20–30 weeks, compared to 8–12 weeks historically . 4. Raw Material Inflation The cost structure of PCBs includes multiple components, all experiencing inflation. This is a comprehensive cost push rather than a single-commodity issue, affecting all buyers and contributing to sustained price increases .SummaryThe price increases in optical modules and PCBs are structural and multi-faceted, driven by:Accelerating AI and data center demandTechnological upgrades to higher-speed modules and PCBsLimited production capacity and advanced packaging constraintsRising raw material costs and R&D investmentsStrategic allocation of high-margin products by manufacturers These factors collectively create a supply-demand imbalance and sustained upward pressure on prices, with short-term volatility expected until production scales and technological innovations stabilize costs .