Rajinder Randy Sandhu

Title: Rajinder Randy Sandhu: Innovator in GaN Technology

Introduction

Rajinder Randy Sandhu is a notable inventor based in Castaic, California. He has made significant contributions to the field of semiconductor technology, particularly in the development of Gallium Nitride (GaN) based High Electron Mobility Transistors (HEMTs). With a total of 5 patents, Sandhu's work focuses on improving the efficiency and performance of electronic devices.

Latest Patents

One of his latest patents is titled "Leakage barrier for GaN based HEMT active device." This invention presents an improved HEMT formed from a GaN material system, which significantly reduces gate leakage current. The design addresses the issue of current constrictions that arise from the deposition of gate metal over step discontinuities on the gate mesa. By layering and etching GaN based materials to create a gate mesa with defined source and drain regions, Sandhu's innovation back-fills the step discontinuities with an insulating material, such as silicon nitride (SiN). This results in a flat surface that allows the gate metal to lay flat, thereby greatly reducing leakage currents between the gate and source, as well as between the gate and drain. The current constrictions caused by the gate metal deposition are virtually eliminated, enhancing the overall performance of the device.

Career Highlights

Throughout his career, Rajinder Randy Sandhu has worked with prominent companies in the aerospace and technology sectors. He has been associated with Northrop Grumman Systems Corporation and TRW Limited, where he contributed to various innovative projects. His expertise in semiconductor technology has positioned him as a valuable asset in the industry.

Collaborations

Sandhu has collaborated with notable professionals in his field, including Michael Wojtowicz and Michael Edward Barsky. These collaborations have further enriched his work and contributed to advancements in semiconductor technology.

Conclusion

Rajinder Randy Sandhu's contributions to GaN technology and his innovative patents reflect his dedication to advancing the field of electronics. His work continues to influence the development of more efficient electronic devices, showcasing the importance of innovation in technology.