Pyeongtaek, South Korea

Chang Jun Park

This inventor holds 4 USPTO granted patents and 3 published patent applications. Top assignees: Semes Co., Ltd., Semes Co., Ltd.. Active years: 2025-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chang Jun Park. Retrieved from https://idiyas.com/inventor/chang-jun-park-nfzdue5y

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 = 75.0

Average Co-Inventor Count = 1.9

ph-index = 1


Company Filing History:


Years Active: 2025-2026

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4 patents (USPTO):Explore Patents

Title: Chang Jun Park: Innovator in Wafer Placement Technology

Introduction

Chang Jun Park is a notable inventor based in Pyeongtaek-si, South Korea. He has made significant contributions to the field of semiconductor manufacturing, particularly in wafer placement technology. His innovative approach has led to the development of a unique apparatus that enhances the precision of wafer positioning.

Latest Patents

Chang Jun Park holds a patent for an "Apparatus for wafer placement teaching and method for wafer placement teaching using the same." This invention proposes a wafer position detection apparatus and a method for detecting and correcting wafer positions. The apparatus includes a laser distance sensor positioned above an electrostatic chuck, along with a controller that manages a robot responsible for transferring the wafer. The controller utilizes the laser distance sensor to verify the relative position of the wafer and the electrostatic chuck, ensuring that the wafer is accurately transferred to a predetermined location.

Career Highlights

Chang Jun Park is currently employed at Semes Co., Ltd., where he continues to innovate in the semiconductor industry. His work focuses on improving the efficiency and accuracy of wafer handling processes, which are critical in the production of integrated circuits.

Collaborations

Chang Jun Park collaborates with talented colleagues, including Chung Woo Lee and Tae Dong Park. Together, they contribute to advancements in semiconductor technology and work on various projects that aim to enhance manufacturing processes.

Conclusion

Chang Jun Park's contributions to wafer placement technology exemplify his commitment to innovation in the semiconductor industry. His patent and ongoing work at Semes Co., Ltd. highlight his role as a key player in advancing manufacturing precision.

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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