This inventor holds 2 USPTO granted patents. Top assignee: Samsung Electronics Co., Ltd.. Active years: 2005-2009.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Hwaseong-Gun, KR (2005)
- Hwaseong-si, KR (2009)
Company Filing History:
Years Active: 2005-2009
Title: Innovations of Yo-Han Choi
Introduction
Yo-Han Choi is a notable inventor based in Hwaseong, South Korea. He has made significant contributions to the field of semiconductor technology, holding 2 patents that showcase his expertise and innovative spirit.
Latest Patents
Choi's latest patents include a "Method of measuring a critical dimension of a semiconductor device and a related apparatus." This invention provides a method and apparatus for measuring a critical dimension (CD) by generating image data of a measurement pattern. The measurement pattern consists of a first surface and a second surface facing each other. The image data includes a first side and a second side corresponding to these surfaces. The data is edited to increase the overlap length of the first and second sides, allowing for precise measurement within a defined window.
Another significant patent is the "Method of making a photomask." This method ensures that the mask pattern is precisely formed. It involves providing a mask blank with an opaque film and a mask film on a transparent substrate. The films are successively etched to create an opaque pattern and a mask pattern. The dimensions of the opaque pattern are measured, and if they fall short of a reference value, further etching is performed to achieve the desired dimensions.
Career Highlights
Yo-Han Choi is currently employed at Samsung Electronics Co., Ltd., where he continues to push the boundaries of semiconductor technology. His work has been instrumental in advancing the precision and efficiency of semiconductor manufacturing processes.
Collaborations
Choi collaborates with Hee-bom Kim, contributing to innovative projects within the semiconductor field. Their teamwork exemplifies the collaborative spirit that drives technological advancements.
Conclusion
Yo-Han Choi's contributions to semiconductor technology through his patents reflect his dedication to innovation and excellence. His work at Samsung Electronics Co., Ltd. continues to influence the industry positively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile