Huai-En Lai

Title: Innovations of Huai-En Lai in LED Technology

Introduction

Huai-En Lai is a notable inventor based in Fengshan, Taiwan. He has made significant contributions to the field of light-emitting diode (LED) technology, holding a total of 3 patents. His innovative approaches have advanced the efficiency and functionality of LED applications.

Latest Patents

One of Huai-En Lai's latest patents focuses on the refractive index tuning of wafer-level package LEDs. This invention involves the formation of two or more molded ellipsoid lenses on a packaged LED die by injecting a glue material into a mold over the LED die and curing the glue material. After curing, the refractive index of the lens in contact with the LED die is greater than that of the lens not directly contacting the LED die. Additionally, at least one phosphor material is incorporated into the glue material for at least one of the lenses not directly contacting the LED die. The lens directly contacting the LED die may also include one or more phosphor materials. A high refractive index coating may be applied between the LED die and the lens.

Another significant patent by Lai is for a light-emitting diode optical emitter with transparent electrical connectors. This optical emitter includes an LED on a package wafer, transparent insulators, and one or more transparent electrical connectors between the LED die and one or more contact pads on the packaging wafer. The transparent insulators are deposited on the package wafer with LED dies attached using a lithography or screen printing method. The transparent electrical connectors are deposited using various methods and may be patterned using a lithography process and etching.

Career Highlights

Huai-En Lai has worked with prominent companies in the semiconductor and lighting industries, including TSMC Solid State Lighting Ltd. and Taiwan Semiconductor Manufacturing Company Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in LED development.

Collaborations

Throughout his career, Lai has collaborated with talented individuals such as Hsin-Hsien Wu and Fu-Wen Liu. These partnerships have fostered an environment of innovation and creativity, leading to advancements in LED technology.

Conclusion

Huai-En Lai's contributions to LED technology through his patents and collaborations highlight his role as a significant inventor in the field. His work continues to influence the development of efficient lighting solutions.