Stefano Daffra

Title: The Innovative Contributions of Stefano Daffra

Introduction

Stefano Daffra is a notable inventor based in Milan, Italy. He has made significant contributions to the field of integrated circuits and non-volatile memory technologies. With a total of 3 patents to his name, Daffra's work has had a considerable impact on the electronics industry.

Latest Patents

One of Daffra's latest patents is a method for improving the intermediate dielectric profile, particularly for non-volatile memories constituted by a plurality of cells. This method includes several steps, such as forming field oxide regions and drain active area regions on a substrate, forming word lines on the field oxide regions, and depositing oxide to create oxide wings adjacent to the word lines. The process also involves masking to open source regions and drain active area regions while keeping the field oxide regions covered with resist. Finally, it requires the removal of field oxide in the source regions and oxide wings from both sides of the word lines.

Another significant patent is related to the method of manufacturing an integrated circuit with MOS transistors. This method provides for the formation of an implantation mask of polycrystalline silicon, which comprises strips for the gate electrodes of the MOS transistors and portions defining openings for the formation of resistors. The process includes low-dose ionic implantation through the mask to form pairs of regions at the sides of the gate strips and resistive regions through the openings. An insulating layer is then formed on the entire structure, followed by anisotropic etching to uncover areas of the substrate not covered by the mask.

Career Highlights

Stefano Daffra has worked with prominent companies in the electronics sector, including SGS-Thomson Microelectronics S.r.l. and STMicroelectronics S.r.l. His experience in these organizations has allowed him to develop and refine his innovative techniques in semiconductor technology.

Collaborations

Daffra has collaborated with notable professionals in his field, including Manlio Sergio Cereda and Andrea Ravaglia. These collaborations have contributed to the advancement of technology in integrated circuits and memory systems.

Conclusion

Stefano Daffra's contributions to the field of electronics through his patents and collaborations highlight his role as an influential inventor. His innovative methods continue to shape the future of integrated circuit design and non-volatile memory technologies.