Hao-Chung Cheng

Title: **Hao-Chung Cheng: Innovator in Vertical Light Emitting Diodes and Semiconductor Fabrication**

Introduction

Hao-Chung Cheng is an accomplished inventor based in Pingtung County, Taiwan. With a focus on the development of advanced technologies, he has been instrumental in the field of optoelectronics, particularly in the innovation of vertical light emitting diodes (VLEDs) and semiconductor fabrication techniques. His contributions have earned him two patents, reflecting his commitment to innovation in this rapidly evolving industry.

Latest Patents

Hao-Chung Cheng holds two notable patents that showcase his expertise:

1. **Vertical light emitting diode (VLED) dice having confinement layers with roughened surfaces and methods of fabrication**: This invention pertains to a vertical light emitting diode (VLED) die that comprises a unique epitaxial structure. It includes a first-type confinement layer and an active layer, configured as a multiple quantum well (MQW) that emits light. The innovation lies in the inclusion of a second-type confinement layer with a roughened surface. The roughened surface can be designed in various ways, including a pattern of holes or protuberances, enhancing the light emission efficiency of the device.

2. **Method for fabricating semiconductor dice by separating a substrate from semiconductor structures using multiple laser pulses**: This method involves a novel process for fabricating semiconductor dice. It includes steps such as providing a wafer assembly with a substrate and semiconductor structures, and defining the semiconductor dice. The core of this method is the application of laser pulses to effectively separate the substrate from the semiconductor structures, ensuring a precise and efficient fabrication process.

Career Highlights

Hao-Chung Cheng is currently associated with Semileds Optoelectronics Co., Ltd., where he continues to focus on research and development in the field of light-emitting technologies. His work not only emphasizes innovation but also the application of advanced fabrication techniques that can potentially revolutionize the industry.

Collaborations

Throughout his career, Hao-Chung has collaborated with notable colleagues such as Chen-Fu Chu and Feng-Hsu Fan. These partnerships have fostered a dynamic environment for the exchange of ideas and advancements in technology, highlighting the importance of teamwork in driving innovation forward.

Conclusion

Hao-Chung Cheng is a distinguished inventor with a profound impact on the fields of vertical light emitting diodes and semiconductor fabrication. With his patents and collaborations, he exemplifies the spirit of innovation and advancement that is crucial for the future of optoelectronics. His contributions not only highlight his technical expertise but also pave the way for future developments in this essential technology sector.