Location History:
- Cambridge, CA (US) (2011)
- Goleta, CA (US) (1998 - 2014)
- Cambridge, MA (US) (2012 - 2023)
Company Filing History:
11 out of 15,502 
4 out of 1,310 
2 out of 42 
Years Active: 1998-2023
Title: **Innovator Spotlight: Evelyn Lynn Hu**
Introduction
Evelyn Lynn Hu is a distinguished inventor based in Cambridge, California, known for her groundbreaking contributions to the field of light-emitting diodes (LEDs). With a robust portfolio of 14 patents, she has focused her research on enhancing the efficiency of gallium nitride (GaN) based devices, carving a niche in innovation that bridges academia and industry.
Latest Patents
Among her recent achievements is the patent for "Highly efficient gallium nitride based light emitting diodes via surface roughening." This innovative technology pertains to a GaN-based LED design where light is extracted through the nitrogen face (N-face) of the LED. The unique feature of this invention is the roughened surface of the N-face, shaped into one or more hexagonal cones. This design significantly reduces internal light reflections, thus allowing more light to escape the LED. The roughening of the N-face is achieved through anisotropic etching techniques, which may include dry etching or photo-enhanced chemical (PEC) etching.
Career Highlights
Evelyn has made significant strides in her career, having collaborated with leading research institutions like the University of California and Japan Science and Technology Agency. Her work has not only garnered numerous patents but has also advanced the field of semiconductor technology, paving the way for more efficient and sustainable lighting solutions.
Collaborations
Throughout her career, Evelyn has collaborated with renowned figures in the field, such as Shuji Nakamura, a notable inventor in LED technology, and Tetsuo Fujii, further enriching her research and contributions to innovation. These collaborations reflect the synergy between brilliant minds dedicated to pushing the boundaries of technology.
Conclusion
Evelyn Lynn Hu’s contributions to the field of light-emitting diodes exemplify the spirit of innovation. Her dedication to improving the efficiency of GaN-based LEDs not only has the potential to revolutionize lighting technology but also serves as an inspiration for future inventors. Her work continues to impact both the scientific community and industries worldwide, cementing her place as a pivotal figure in the realm of modern inventions.