Producers of silicon ingots using the Czochralski process value one thing above all: an innovative, modular design with a high level of automation for high throughput. That's why many systems engineering companies rely on our innovative automation and drive technology. It's at the core of our offering for crystal growing systems, along with a tailored solution for a crucible heating power supply that can reliably handle critical process parameters at all times. Process visualizations with comprehensive data processing are an integral part of the Siemens automation concept.
The concrete task is to continuously rotate the seed crystal in the solidifying melt while simultaneously pulling it upwards at a speed precisely adapted to the crucible temperature profile. The goal of our automation concept is to perfectly adapt the speeds to the crucible temperature and to minimize deviations from the target temperature by providing the highest quality crucible heating power supply. In this way, the crystal reliably reaches the desired diameter thanks to high-precision control throughout the pulling process – and is of optimal quality for subsequent processes in wafer production.
Maintaining constant movement throughout a wafer production plant requires high power quality – because if the power fluctuates, motion parameters such as rotational speed and torque also change.
The SIPS (Silicon Industry Power Supply) is a tailor-made solution for supplying power to the crucible heating system for crystal growing systems in the solar and semiconductor industries. The SIPS is a DC power supply specifically developed for powering crucible heating systems. It can be adapted to the specific requirements of a customer's application in the solar and semiconductor industries – for example, in terms of the number and rating of the DC outputs.
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