Raihan M Tarafdar

Title: Raihan M Tarafdar: Innovator in Dielectric Film Technology

Introduction

Raihan M Tarafdar is a prominent inventor based in San Jose, CA, known for his significant contributions to the field of dielectric film technology. With a total of 12 patents to his name, he has made remarkable advancements that enhance the performance and efficiency of semiconductor devices.

Latest Patents

Among his latest innovations is the patent for a Sequential deposition/anneal film densification method. This method involves forming a silicon dioxide-based dielectric layer on a substrate surface through a sequential deposition and anneal technique. The process allows for the complete penetration of annealing agents into the layer, facilitating the migration of water out of the layer. The dielectric layer is then annealed at moderate temperatures to remove water and fully densify the film. This process is repeated until the desired dielectric film thickness is achieved.

Another notable patent is the Method of forming low-temperature conformal dielectric films. This deposition method modulates the reaction rate and thickness of highly conformal dielectric films. It involves creating a saturated catalytic layer on the surface and exposing it to silicon-containing precursor gas along with a reaction modulator. This modulator can be added at various stages of the process, allowing for significant control over the film thickness, which can increase or decrease by up to 20 times after one cycle of deposition.

Career Highlights

Raihan M Tarafdar has established himself as a key figure in the semiconductor industry through his work at Novellus Systems Incorporated. His innovative approaches to dielectric film technology have positioned him as a leader in the field, contributing to advancements that are critical for modern electronics.

Collaborations

Throughout his career, Raihan has collaborated with notable colleagues, including George D Papasouliotis and Dennis Michael Hausmann. These partnerships have fostered an environment of innovation and have led to the development of cutting-edge technologies in the semiconductor sector.

Conclusion

Raihan M Tarafdar's contributions to dielectric film technology exemplify the impact of innovation in the semiconductor industry. His patents and collaborative efforts continue to shape the future of electronic devices, making him a significant figure in the field.