The Middlesex-patented Hybrid-AMHS (Automated Material Handling System) is a breakthrough in 300mm FAB transport architecture. For the first time, it integrates conveyor technology with existing OHT (Overhead Hoist Transport) systems to deliver a more efficient, stable, and scalable hybrid solution.
The main limitation of traditional OHT-only systems is variability: as the number of OHT units increases, process coordination becomes exponentially more complex. This introduces idle time between production steps, increases WIP inventory and reduces overall flow control.
The Middlesex Hybrid-AMHS solves this critical issue by stabilizing material transport between processes through a continuous conveyor infrastructure. FOUPs are intelligently buffered and routed in optimized sequences, ensuring flow remains predictable and efficient.
By integrating conveyors into the OHT infrastructure, FOUPs move seamlessly through the FAB without unnecessary interruptions:
This eliminates the inefficiencies of point-to-point OHT routing and creates a continuous, stable, and predictable transport flow.
This process enables:
The Middlesex Hybrid-AMHS is protected by international patents granted in the United States, Germany, Taiwan, China, and South Korea, all of them strategic markets in semiconductor manufacturing.
This patent protection makes Middlesex the only company in the world legally authorized to deploy and commercialize hybrid conveyor + OHT systems.
Conveyor integration significantly reduces idle time and creates a smoother, more predictable transport process.
FOUPs are managed in a logical sequence within the conveyor - no unnecessary bouncing between origin and destination (through stockers)
With integrated conveyors, there's no need to assign a dedicated OHT to every transfer. This drastically reduces operational complexity.
The stability of the hybrid system allows for more FOUPs to be processed per hour while maintaining consistent quality standards.
Shorter cycle times, greater throughput capacity, better inter-process delivery, optimized work-in- process and reduced overall costs.
Only Middlesex is authorized to install and certify hybrid conveyor + OHT systems in compliance with international regulations.
Talk to our engineering team today to learn how the Middlesex Hybrid-AMHS can be integrated into your 300mm fab.
The Middlesex Hybrid system is the best choice if your FAB requires:
With headquarters in Switzerland and the United States, and projects in Germany, Taiwan, China, South Korea, and the U.S., Middlesex is the trusted global partner for next-generation wafer transport solutions.
Discover how our patented conveyor and hybrid amhs technology sets new standards in industrial efficiency
