Location History:
- Beverloo, BE (2000 - 2001)
- Beverlo, BE (1999 - 2002)
Company Filing History:
2 out of 960 
2 out of 47 
2 out of 178 
Years Active: 1999-2002
Title: The Innovative Contributions of Ludo Deferm
Introduction
Ludo Deferm, an accomplished inventor based in Beverlo, Belgium, has made significant strides in the field of semiconductor technology. With a total of 7 patents to his name, Deferm's work is noteworthy for its contributions to advancements in field-effect transistors (FETs) and flash memory technology.
Latest Patents
Among his latest innovations is a method for forming a FET that features L-shaped insulating spacers. This scalable device concept enhances control over gate overlap by utilizing low resistivity source/drain extension regions with shallow junctions. The innovative use of L-shaped spacers allows for minimized junction depth dependence, broadening the process window during silicidation of source/drain regions, and making this approach particularly effective for FETs with a channel length of less than 0.25 micrometers.
Additionally, Deferm developed a method of erasing a flash EEPROM memory cell array, optimized for low power consumption. This invention allows for rapid programming of SSI cells while consuming minimal power, catering to applications requiring battery efficiency. The method facilitates an internal increase of the bitline voltage, thus maintaining maximum injection efficiency during programming. This enhances the programming speed to approximately 20 ns per byte for a 1Mbit device, a significant improvement compared to typical state-of-the-art Flash memory speeds.
Career Highlights
Ludo Deferm has had a remarkable career, contributing to numerous innovative projects. He has worked with prominent organizations, including IMEC and the Interuniversity Microelectronics Centre (imec). His expertise in semiconductor technology is recognized through his inventive contributions and multiple patents.
Collaborations
Throughout his career, Deferm has collaborated with notable coworkers such as Jan F. Van Houdt and Luc Haspeslagh. These partnerships have enabled collaborative efforts in research and development, further advancing the field of microelectronics.
Conclusion
Ludo Deferm stands out as a significant inventor whose contributions to FET technology and flash memory systems represent milestones in semiconductor research. His innovative patents not only highlight his technical expertise but also propel advancements in low-power and high-speed applications, marking him as a key figure in his field.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.