Singapore, Singapore

Yunfei Li

This inventor holds 4 USPTO granted patents. Top assignee: United Microelectronics Corp.. Active years: 2021-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yunfei Li. Retrieved from https://idiyas.com/inventor/yunfei-li-ug5naswf

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 2

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 2021-2025

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4 patents (USPTO):Explore Patents

Title: Innovations of Yunfei Li

Introduction

Yunfei Li is a prominent inventor based in Singapore, SG. He has made significant contributions to the field of semiconductor technology. With a total of 4 patents, his work focuses on enhancing transistor structures.

Latest Patents

One of his latest patents is titled "Transistor structure with air gap and method of fabricating the same." This invention includes a substrate with a transistor disposed on it. An etching stop layer covers and contacts both the transistor and the substrate. A first dielectric layer is placed over the etching stop layer, followed by a second dielectric layer. A trench is created on the gate structure within both dielectric layers. Notably, the width of the trench in the second dielectric layer is smaller than that in the first. A filling layer is then added within the trench, covering the top surface of the second dielectric layer, resulting in the formation of an air gap within the filling layer.

Career Highlights

Yunfei Li is currently employed at United Microelectronics Corporation, where he continues to innovate in the semiconductor industry. His work has been instrumental in advancing transistor technology.

Collaborations

He collaborates with notable coworkers, including Ji Feng and Guohai Zhang, who contribute to his research and development efforts.

Conclusion

Yunfei Li's innovative work in semiconductor technology, particularly in transistor structures, showcases his expertise and commitment to advancing the field. His contributions are significant and continue to impact the industry positively.

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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