Francesca Marchese

Title: Francesca Marchese: Innovator in Silicon Ingot Production

Introduction

Francesca Marchese is a prominent inventor based in Merano, Italy. She has made significant contributions to the field of materials science, particularly in the production of single crystal silicon ingots. With a total of three patents to her name, her work has advanced the methods used in the semiconductor industry.

Latest Patents

Francesca's latest patents include innovative methods for producing single crystal silicon ingots by Continuous Czochralski (CCz). One of her patents focuses on the use of quartz plates during the growth of these ingots. In this method, one or more plates are added to the outer melt zone of a crucible assembly, allowing the plates to float on the silicon melt. This technique ensures that when silicon is added to replenish the melt during ingot growth, it contacts the plates rather than falling directly into the melt. The silicon then melts and falls through openings that extend through the thickness of the plates.

Another patent addresses the determination of mass/time ratios for buffer members used during the growth of single crystal silicon ingots. In this method, a batch of buffer members, such as quartz cullets, is added to the outer melt zone of the crucible assembly before the main body of the ingot is grown. The ratio of the mass of the batch of buffer members to the time between adding the batch and the beginning of the ingot's growth is controlled to exceed a certain threshold.

Career Highlights

Francesca Marchese is currently employed at GlobalWafers Co., Ltd., where she continues to innovate in the field of silicon production. Her work has been instrumental in improving the efficiency and quality of silicon ingots, which are critical components in various electronic devices.

Collaborations

Francesca has collaborated with notable colleagues, including Matteo Pannocchia and James Ho Wai Kitt. These partnerships have further enhanced her research and development efforts in the semiconductor industry.

Conclusion

Francesca Marchese is a trailblazer in the field of silicon ingot production, with her innovative patents paving the way for advancements in semiconductor technology. Her contributions are vital to the ongoing evolution of materials science and engineering.