CITIC Securities: Optical Module Thermal Management Becomes Performance-Defining

TREE NEWS reports: CITIC Securities said thermal management in optical modules is shifting from a supporting role to a performance-defining one as 800G shipments scale and 1.6T enters its first volume year. The broker outlined a three-layer system — chip-level Micro-TEC with ceramic heat sinks, TIM gel and graphene interface materials, and module-level vapor chambers and cold plates — with per-module thermal value rising across each speed generation. It flagged domestic substitution opportunities against Japanese suppliers in TEC and ceramic substrates.