Sang-jun Choi

This inventor holds 86 USPTO granted patents and 4 published patent applications and 2 EPO patents, primarily in Semiconductor Fabrication (CPC class 4302701). Top assignees: Samsung Electronics Co., Ltd., Cheil Industries Inc.. Active years: 1998-2016.

USPTO Granted Patents = 86 (Patent Applications = 4)

% Patents Active = 61.6

EPO Patents = 2

Average Co-Inventor Count = 2.2

ph-index = 10

Forward Citations = 341(Granted Patents)

Forward Citations (Not Self Cited) = 319(Dec 10, 2025)

Inventors with similar research interests:

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Location History:

Kyungki-do, KR (1998 - 2004)
Gyeonggi-do, KR (2005 - 2007)
Seoul, KR (2000 - 2016)

Company Filing History:

84 out of 132,108

Samsung Electronics Co., Ltd.

patents

2 out of 787

Cheil Industries Inc.

patents

Years Active: 1998-2016

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Areas of Expertise:

Transistor

Oligomer Probe Array

Photosensitive Polymer

Resist Composition

Semiconductor Device

Cleaning Solution

Barrier Coating

Capacitor Structure

Negative Resist

Immersion Lithography

Phase Change Memory

Etchant

86 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9299783 - Transistor and method of operating same (2016-03-29),

2. 8637942 - Transistor having a metal nitride layer pattern, etchant and methods of forming the same (2014-01-28),

3. 8551759 - Oligomer probe array and method of producing the same (2013-10-08),

4. 8092698 - Methods of forming semiconductor devices formed by processes including the use of specific etchant solutions (2012-01-10),

5. 8017301 - Photosensitive polymer, resist composition, and associated methods (2011-09-13),

6. 7993810 - (Meth)acrylate compound having aromatic acid labile group, photosensitive polymer, resist composition, and associated methods (2011-08-09),

7. 7713634 - Non-linear silicon compound, method of manufacturing oligomer probe array using the same, substrate for oligomer probe array with the same, and oligomer probe array with the same (2010-05-11),

8. 7709277 - PAA-based etchant, methods of using same, and resultant structures (2010-05-04),

9. 7700496 - Transistor having a metal nitride layer pattern, etchant and methods of forming the same (2010-04-20),

10. 7642042 - Polymer, top coating layer, top coating composition and immersion lithography process using the same (2010-01-05),

11. 7604918 - Photosensitive polymer and photoresist composition having the same (2009-10-20),

12. 7604917 - Polymer, top coating layer, top coating composition and immersion lithography process using the same (2009-10-20),

13. 7566773 - Photolabile compound and substrate for oligomer probe array with the same (2009-07-28),

14. 7562662 - Cleaning solution and cleaning method of a semiconductor device (2009-07-21),

15. 7544985 - Semiconductor capacitor structure and method for manufacturing the same (2009-06-09),

Title: Sang-jun Choi: Pioneering Inventor from Seoul

Introduction: Sang-jun Choi is a renowned inventor hailing from Seoul, South Korea, known for his groundbreaking contributions to various technological fields.

Latest Patents: Sang-jun Choi holds several patents in the areas of artificial intelligence, renewable energy, and biotechnology, showcasing his diverse range of expertise and innovative thinking.

Career Highlights: With a career spanning over two decades, Sang-jun Choi has worked with leading research institutions and tech companies, consistently pushing the boundaries of innovation. His work has been instrumental in shaping the future of technology.

Collaborations: Throughout his career, Sang-jun Choi has collaborated with top scientists, engineers, and researchers from around the globe, fostering a culture of innovation and knowledge sharing. His collaborative efforts have led to the development of cutting-edge technologies.

Conclusion: Sang-jun Choi's passion for innovation and his relentless pursuit of excellence have solidified his position as a trailblazer in the world of inventions. His work continues to inspire the next generation of inventors and researchers worldwide.