Ranjith Samuel E John

Title: Innovations by Ranjith Samuel E John in LED Technology

Introduction

Ranjith Samuel E John is a notable inventor based in Livermore, California. With two patents to his name, he has made significant contributions to the field of LED technology, particularly in the areas of on-wafer testing and laser application processes.

Latest Patents

Ranjith's latest patents showcase his expertise and innovative spirit. The first patent involves a conductive micro LED architecture for on-wafer testing. This invention describes LED donor substrates and conductive architectures that facilitate on-wafer testing prior to transferring the LEDs to a receiving substrate. An array of LEDs is supported by electrically conductive stabilization posts, which can be coupled with a test pad, ensuring efficient and reliable testing processes.

The second patent focuses on a surface modification process for laser applications. This involves laser lift-off methods that achieve optical flatness on the back side of a temporary substrate, using either an optical layer or optical liquid. In this process, a laser is directed through the optical layer or liquid and the back side of the temporary substrate, enabling the decomposition of a process layer supported on the front side. This inventive approach improves the separation of the process layer and the temporary substrate, enhancing overall efficiency.

Career Highlights

Ranjith is currently employed at Apple Inc., a company renowned for its innovative technology and market-leading products. His role in such an esteemed organization highlights his valuable contributions to advancements in technology, particularly in LED applications.

Collaborations

Throughout his career, Ranjith has collaborated with talented coworkers, including Clayton Ka Tsun Chan and Ion Bita. Their combined expertise in the field has likely fueled innovative projects and advancements, reinforcing the importance of teamwork in driving technological progress.

Conclusion

Ranjith Samuel E John's work exemplifies the impact of innovation in the realm of LED technology. His patents not only advance the industry but also demonstrate the critical role of dedicated inventors in transforming ideas into practical applications. With ongoing efforts in research and development, Ranjith is poised to continue influencing the technological landscape in significant ways.