Michael A De Rooji

Title: **Michael A De Rooji: Innovator in GaN Technology**

Introduction

Michael A De Rooji, an accomplished inventor based in Palm Springs, California, holds two significant patents in the field of Gallium Nitride (GaN) technology. His innovative work revolves around enhancing the efficiency and performance of GaN transistors, which have become essential components in modern electronic devices.

Latest Patents

De Rooji's latest patents include innovations that specifically address the limitations of traditional GaN devices. The first patent, titled "GaN device with reduced output capacitance and process for making same," describes a GaN transistor designed to reduce output capacitance (Coss). This device comprises a substrate layer, buffer layers, and a barrier layer, forming a two-dimensional electron gas (2DEG) at the interface between the barrier and buffer layers. By incorporating isolation regions in the interface, the design effectively eliminates unwanted 2DEG, thereby minimizing output capacitance for improved performance.

The second patent, "GaN transistors with polysilicon layers for creating additional components," presents a GaN transistor integrated with polysilicon layers. These layers play a crucial role in developing additional components for integrated circuits. This inventive device encompasses an EPI structure with insulating material overlay, including n-type and p-type regions facilitated by the polysilicon layers. Metal interconnects and vias further enhance the device's connectivity, bridging the source and drain metals to the regions of the polysilicon layer.

Career Highlights

Throughout his career, Michael A De Rooji has made noteworthy contributions in the field of power conversion and semiconductor technologies. He has been associated with Efficient Power Conversion Corporation, where he applied his innovative approach to advance GaN solutions.

Collaborations

De Rooji has collaborated with several professionals during his journey. Notable coworkers include Jianjun Cao and Robert A Beach, with whom he has worked to innovate and refine semiconductor technologies. Their collective efforts have significantly influenced the industry and contributed to the development of superior GaN devices.

Conclusion

Michael A De Rooji's contributions to GaN technology through his patents and collaborative efforts mark him as an influential figure in the field of electronics. His advancements not only enhance the performance of electronic devices but also pave the way for future innovations in the realm of power conversion and semiconductor applications.