Silicon processing - ULTRA-PURE PROCESS

UNIQUE ULTRA-PURE PROCESS
& OFFCUT RECYCLING

Artificial intelligence and next-generation semiconductor technologies require ultra-clean silicon surfaces for manufacturing advanced chips. The ALZTEC ULTRA-PURE PROCESS achieves surface contamination below 10 pptw for the five main metals and is designed to meet future sub-ppt purity standards. Built on more than 15 years of expertise, the process combines advanced etching technology with ultra-clean upstream and downstream operations.

ALZTEC supplies fully automated equipment covering the complete production chain:

Crushing & Screening – Basket Transport – Etching & Drying – Bagging – Boxing – Final Packing

Maximum automation reduces labor costs, delivers payback in less than two years in high-wage regions, and eliminates contamination risks from manual handling.

The ALZTEC OFFCUT RECYCLING SYSTEM enables efficient recovery and reuse of silicon from ingot and wafer production offcuts, including wings, tops, tails, ingot pieces, and bricks. The modular system is available for capacities from 5 GW to 20 GW, with customized layouts and optional full automation.

Combined with the fully automated Crucible Charging System, ALZTEC provides a complete recycling solution that maximizes silicon yield and delivers annual cost savings worth millions of euros.