Rajinder S Sandhu

Title: The Innovative Contributions of Rajinder S Sandhu

Introduction

Rajinder S Sandhu is a notable inventor based in Castaic, California. He has made significant contributions to the field of semiconductor devices, particularly in the development of advanced methods for fabricating high electron mobility transistors (HEMTs). With a total of two patents to his name, Sandhu's work exemplifies innovation in the realm of materials science and engineering.

Latest Patents

Sandhu's latest patents include groundbreaking methods for the selective deposition of diamond in thermal vias. This method involves etching a thermal via into the backside of a semiconductor substrate and depositing a diamond nucleation seed layer across the substrate's back-side. The process further includes coating the diamond nucleation with a mask layer and removing the mask material outside of the thermal via. The remaining portions of the diamond nucleation layer are then selectively removed, allowing for the deposition of a bulk diamond layer within the thermal via, ensuring that diamond only grows in the thermal via and not on the planar portions of the substrate.

Another significant patent is focused on the direct growth of diamond in backside vias for GaN HEMT devices. This invention describes a GaN HEMT device that features a silicon carbide substrate with a via formed through its bottom surface. The device comprises multiple epitaxial layers and device layers, with a diamond layer provided within the via, enhancing the performance and efficiency of the semiconductor device.

Career Highlights

Throughout his career, Rajinder S Sandhu has worked with prominent organizations, including Northrop Grumman Systems Corporation and the United States Navy. His experience in these esteemed institutions has allowed him to refine his expertise in semiconductor technology and contribute to various innovative projects.

Collaborations

Sandhu has collaborated with notable colleagues, including Vincent Gambin and Benjamin Poust. These partnerships have fostered an environment of creativity and innovation, leading to advancements in semiconductor fabrication techniques.

Conclusion

Rajinder S Sandhu's contributions to the field of semiconductor devices through his innovative patents and collaborations highlight his role as a significant inventor. His work continues to influence the development of advanced technologies in the industry.