Chyi-Shyuan Chern

Title: Innovations by Inventor Chyi-Shyuan Chern in LED and Semiconductor Technologies

Introduction

Chyi-Shyuan Chern, an accomplished inventor based in Taipei, Taiwan, has made significant contributions to the field of semiconductor and LED technologies. With a remarkable portfolio of 12 patents, Chern has focused on optimizing light extraction efficiency for LEDs and improving the control of critical dimensions in semiconductor wafers.

Latest Patents

Chern's latest patents include advanced methods for enhancing light-emitting diode (LED) wafers. One notable invention involves optimizing light extraction efficiency by determining a target surface morphology that yields maximum light output. This method involves etching the LED wafer to create a roughened surface and using a laser scanning microscope to compare the actual surface morphology with the target. If discrepancies exceed acceptable limits, the etching process is repeated with adjusted parameters.

Another significant patent focuses on multi-zone temperature control for semiconductor wafers. This invention includes a method and apparatus for accurately controlling critical dimensions of a circuit on a semiconductor substrate. By utilizing a controller to assess critical dimension measurements at various locations and adjusting the thickness of a film during formation, Chern's invention enhances the precision of semiconductor manufacturing processes.

Career Highlights

Throughout his career, Chyi-Shyuan Chern has worked with prominent companies in the industry, including Taiwan Semiconductor Manufacturing Company Limited and TSMC Solid State Lighting Limited. His experience in these leading organizations has helped foster innovation in semiconductor and lighting technologies.

Collaborations

Chern's work is further enriched through collaborations with notable professionals in the field, including Hsin-Hsien Wu and Zin-Chang Wei. These partnerships facilitate the exchange of ideas and advance the development of cutting-edge technologies.

Conclusion

With a robust portfolio and a dedication to innovation, Chyi-Shyuan Chern continues to play a pivotal role in the evolution of LED and semiconductor technologies. His inventive contributions not only demonstrate his expertise but also significantly impact the future of these industries.