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For the Inventor, By the Inventor

Chungcheongnam-do, South Korea

Seung Duk Cho

This inventor holds 4 USPTO granted patents. Top assignee: Korea Kumho Petrochemical Co., Ltd.. Active years: 1995-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seung Duk Cho. Retrieved from https://idiyas.com/inventor/seung-duk-cho-wt1jwek6

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

Calculating rank
USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 1

Forward Citations = 8(Granted Patents)


Location History:

  • Jeonlanam-Do, KR (1995)
  • Kwangju, KR (1996)
  • Chungcheongnam-do, KR (2014)

Company Filing History:

goldMedal4 out of 270 
 
Korea Kumho Petrochemical Co., Ltd.
 patents

Years Active: 1995-2014

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4 patents (USPTO):Explore Patents
1. 8889901 - Photoacid generator, method for producing the same, and resist composition comprising the same (2014-11-18),
2. 8853441 - Sulfonium compound, photoacid generator, and resist composition (2014-10-07),
3. 5506330 - Polymerization method for preparing non-halogenated aromatic (1996-04-09),
4. 5399654 - Method for the production of phosphorus-containing aromatic polyester (1995-03-21),

Title: Seung Duk Cho: Innovator in Photoacid Generator Technology

Introduction

Seung Duk Cho is a prominent inventor based in Chungcheongnam-do, South Korea. He has made significant contributions to the field of photoacid generators, which are essential in the lithography process used in semiconductor manufacturing. With a total of 4 patents to his name, Cho's work has advanced the efficiency and effectiveness of resist compositions.

Latest Patents

Cho's latest patents include innovative technologies such as a photoacid generator and a method for producing the same. This photoacid generator is designed to maintain an appropriate contact angle during ArF liquid immersion lithography, thereby reducing defects that may occur during the process. Additionally, it boasts excellent solubility in resist solvents and compatibility with resins. Another notable patent involves a sulfonium compound that enhances the controllability of photon yield by introducing different absorbers to the cation region. This innovation addresses the challenges associated with using a mixture of different photoacid generators, providing improved miscibility in resist and enhanced resolution.

Career Highlights

Seung Duk Cho is currently employed at Korea Kumho Petrochemical Co., Ltd., where he continues to develop cutting-edge technologies in the field of photoacid generators. His work has been instrumental in advancing the capabilities of lithography processes, which are critical for the production of high-performance semiconductor devices.

Collaborations

Throughout his career, Cho has collaborated with notable colleagues, including Dae Kyung Yoon and Byung C Jeon. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Seung Duk Cho's contributions to the field of photoacid generators have positioned him as a key figure in semiconductor technology. His innovative patents and collaborative efforts continue to drive advancements in lithography processes, making a significant impact on the industry.

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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