Used TEL ALPHA 8S Thermal Processing Equipment

The TEL ALPHA 8S is a batch-type vertical diffusion furnace designed for 200mm (8-inch) wafers; it serves as a primary thermal processing platform for TEL in the realm of mature-node semiconductor manufacturing.

Core Positioning: A Mainstay for Thermal Processing in Mature-Node Manufacturing

Engineered for high-volume thermal processing, this system is widely used for wet/dry oxidation, annealing, and LPCVD (Low-Pressure Chemical Vapor Deposition) processes involving silicon, silicon nitride, and silicon dioxide. Its vertical tube architecture optimizes cleanroom floor space, while independent multi-zone temperature control and precise gas delivery ensure process uniformity both within and across batches.

Key Technical Features

Precise Multi-Zone Temperature Control: Employs multi-zone temperature regulation combined with a rotating wafer boat to ensure uniform temperature distribution across the entire batch, thereby minimizing variations in film thickness and dopant concentration.

Flexible Process Compatibility: Supports various configurations—including atmospheric oxidation and LPCVD—with upgrade kits (UGK) available to extend the equipment's lifecycle and enhance productivity.

Automation and Connectivity: Features standard automated wafer handling and supports SECS/GEM communication protocols (e.g., via the TS-4000 controller), allowing for seamless integration into automated high-volume production lines.

Summary

With its stable batch thermal processing capabilities, mature process ecosystem, and low total cost of ownership, the ALPHA 8S stands as a reliable, high-volume production tool for oxidation, annealing, and LPCVD applications in 200mm mature-node manufacturing lines.