In-Situ Fabrication and Process Control Techniques in Rapid Thermal Processing

Advanced rapid thermal processing (RTP) equipment and sensors have been developed for in-situ fabrication of semiconductor devices. High-performance multi-zone lamp modules have been applied to various processes including rapid thermal oxidation (RTO), chemicalvapor deposition (CVD) of tungsten and amorphous/polycrystalline silicon, silicide formation, as well as high-temperature rapid thermal annealing (RTA). Concurrent use of multizone lamps and multi-point temperature sensors allows real-time wafer temperature control and process uniformity optimization. Specific experimental results will be presented on the multi-zone lamp modules, in-situ process control sensors, and single-wafer fabrication processes.