Used AG Associates 8108 Thermal Processing Equipment

The Heatpulse 8108 by AG Associates (later associated with Metron) is a single-wafer Rapid Thermal Processing (RTP) system used in semiconductor manufacturing for processes such as Rapid Thermal Annealing (RTA).

Core Positioning: A Thermal Processing Platform Featuring Rapid Heating and Cooling

The primary value of this equipment lies in its "speed." Utilizing lamp-based heating, it achieves exceptionally high heating and cooling rates—programmable from 1°C to 180°C per second—enabling processes like annealing, oxidation, or nitridation to be completed within seconds to minutes, while minimizing the total thermal budget experienced by the wafer. This capability is critical for applications such as dopant activation following ion implantation, silicide formation, and the creation of ultra-shallow junctions.

Key Specifications and Features

Wafer Compatibility: Supports standard 5, 6, and 8-inch wafers, utilizing a fully automated cassette-to-cassette robotic wafer-handling system.

Temperature Range: The recommended steady-state operating range is 400°C–1200°C, with a within-wafer uniformity of ±5°C for 8-inch wafers at 1150°C.

Process Gases: Supports various atmospheres, including N₂, O₂, N₂/H₂, NH₃, and Ar, facilitating processes such as annealing, Rapid Thermal Oxidation (RTO), and Rapid Thermal Nitridation (RTN).

Typical Applications: Dopant activation in silicon/germanium thin films, short-duration oxidation/nitridation, silicide annealing, and contact alloying.

Summary

The Heatpulse 8108 served as the flagship RTP system for AG Associates during the 200mm wafer era. With its high heating/cooling rates and single-wafer processing capability, it is designed for annealing and thin-film growth steps in mature semiconductor manufacturing processes that require precise control over the thermal budget.