磷化铟（InP）是一种关键的半导体材料，用于数据中心的激光芯片和连接AI集群中GPU的光收发器。其独特的晶格结构能够生长出在特定波长下发光的合金，这对于最小化光纤中的信号损耗和色散至关重要。磷化铟的生产具有挑战性，因为晶体生长缓慢、产率低且资本投入巨大，建立新产能需要数年时间。 AI
影响 强调了磷化铟（InP）的制造限制，而磷化铟是实现大规模AI训练和推理所需高速互连的关键材料。
排序理由 讨论了AI基础设施（GPU互连）的关键组件（磷化铟）及其制造挑战。
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The InP substrate market was built for telecom volumes over decades. Wafers are still 3-4 inch while silicon moved to 12-inch long ago. Crystal growth is slow, low-yield, and capital intensive. New capacity takes 2-3 years to bring online. The SemiAnalysis Networking Model
InP is used because it is the only III-V material whose crystal lattice allows you to grow alloys that emit light at 1310nm and 1550nm, the two wavelengths where optical fiber has minimum signal loss and minimum dispersion. The material choice is dictated by physics, not https://…
Indium Phosphide (InP) is a III-V compound semiconductor, made from indium (group III) and phosphorus (group V). It is the substrate material that every datacenter laser chip is fabricated on. Every optical transceiver connecting GPUs in AI clusters uses InP laser dies inside. ht…