Chiayi, Taiwan

Chih-Kuang Yu

This inventor holds 38 USPTO granted patents and 2 published patent applications, primarily in LED Technology. Top assignees: TSMC Solid State Lighting Ltd., Industrial Technology Research Institute, Epistar Corporation. Active years: 2009-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chih-Kuang Yu. Retrieved from https://idiyas.com/inventor/chih-kuang-yu

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 38 

% Patents Active = 68.4

Average Co-Inventor Count = 3.4

ph-index = 8

Forward Citations = 234(Granted Patents)


Location History:

  • Chiayi, TW (2009 - 2016)
  • Hsinchu, TW (2016)

Company Filing History:


Years Active: 2009-2025

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Areas of Expertise:
Thermoelectric Cooler
Photonic Devices
LED Fabrication
Thermal Performance
Multi-Junction LED
Die-to-Wafer Bonding
Micro-Interconnects
Reflective Metal Bonding
Integrated Package Structure
Light Emitting Diode
Dicing-Free Process
Thermally Conductive Film
38 patents (USPTO):Explore Patents

Title: Innovations by Chih-Kuang Yu: A Pioneer in Photonic Devices

Introduction

Chih-Kuang Yu, based in Chiayi, Taiwan, is a notable inventor with a remarkable portfolio of 37 patents. His contributions to the field of light-emitting devices and photonic technology have significantly influenced the industry, showcasing his expertise in semiconductor technology.

Latest Patents

One of Chih-Kuang Yu's latest innovations is a patent for "Wafer Level Photonic Devices Dies Structure and Method of Making the Same." This patented technology comprises a light-emitting device that includes a sophisticated first epi-structure and various metal elements essential for functionality. The design features a unique light-emitting layer situated between two doped semiconductor layers, enhancing the device's efficiency and performance.

Another significant invention is the "Dicing-Free LED Fabrication" patent, which provides an innovative method for fabricating light-emitting diode (LED) devices. This process involves a wafer with a sapphire substrate that contains multiple un-separated LED dies. By utilizing photolithography and localized radiation techniques, the method effectively separates LED dies without traditional dicing, simplifying production and improving yield rates.

Career Highlights

Chih-Kuang Yu has made significant strides in his career, having worked at prominent organizations such as TSMC Solid State Lighting Ltd. and the Industrial Technology Research Institute. His work at these institutions has further solidified his reputation as a leader in photonic device innovation.

Collaborations

Throughout his career, Chih-Kuang Yu has collaborated with various talented individuals, including notable coworkers Hung-Yi Kuo and Chun-Kai Liu. These partnerships have allowed him to enhance the quality and scope of his innovations, demonstrating the importance of teamwork in achieving technological advancements.

Conclusion

Chih-Kuang Yu's contributions to light-emitting devices and photonic technologies exemplify the spirit of innovation. His extensive patent portfolio underscores his role as a key player in advancing semiconductor technologies. As the industry continues to evolve, Chih-Kuang Yu's work will undoubtedly inspire future inventors and innovators in this dynamic field.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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