Semiconductor Logistics

Semiconductor logistics is the planning and control of material, wafer, and information flow across fab, assembly, test, and supply-chain nodes - it ensures the right materials and lots are in the right place at the right time.

What Is Semiconductor logistics?

• Definition: End-to-end logistics discipline spanning inbound materials, intra-fab movement, inter-site transport, and outbound delivery.
• Flow Components: Raw materials, WIP lots, reticles, spare parts, and finished devices.
• System Interfaces: MES, ERP, warehouse systems, AMHS, and external freight networks.
• Performance Goals: Minimize delay, preserve quality, and maintain traceable chain-of-custody.

Why Semiconductor logistics Matters

• Cycle-Time Control: Logistics delays directly increase wafer cycle time and delivery risk.
• Capacity Utilization: Poor material flow can starve bottleneck tools and reduce output.
• Quality Protection: Sensitive materials require controlled handling and timing to avoid degradation.
• Cost Efficiency: Inventory imbalance and expedite shipping inflate operating cost.
• Resilience Planning: Strong logistics design improves recovery from supply and transport disruptions.

How It Is Used in Practice

• Flow Mapping: Identify bottlenecks across storage, transport, and dispatch handoff points.
• Digital Integration: Link lot tracking, scheduling, and transport systems for real-time visibility.
• Risk Controls: Apply buffer policies and contingency routing for critical materials and tools.

Semiconductor logistics is a core operations capability for stable fab performance - disciplined flow control improves throughput, lowers cost, and protects on-time customer delivery.