This inventor holds 3 USPTO granted patents. Top assignee: Eo Technics Co., Ltd. Active years: 2004-2006.
Company Filing History:
Years Active: 2004-2006
Title: Chang Su Jun: Innovator in Chip Scale Marking Technology
Introduction
Chang Su Jun is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of chip scale marking technology, holding a total of 3 patents. His innovative work focuses on enhancing the precision and efficiency of laser marking systems used in semiconductor manufacturing.
Latest Patents
Chang Su Jun's latest patents include groundbreaking technologies that improve the calibration and marking processes. One of his notable inventions is a chip scale marker and method of calibrating marking position. This invention features a laser system, a wafer holder that supports the wafer to be processed, and a camera that moves above the wafer holder. The camera is connected to an X-Y stage and monitors the wafer supported on a center hole of the wafer holder. The chip scale marker also includes a unit that is detachably arranged on the laser beam path from the laser system, which reduces the power density of the laser beam. Additionally, a screen is arranged on the center hole of the wafer holder to indicate the position where the laser beam is irradiated.
Another significant patent is the chip scale marker and marking method. This invention comprises a laser system that performs laser marking, a wafer holder for mounting the wafer subject to laser marking, and a vacuum plate at the center of the wafer holder for securing the wafer. The wafer holder also features a rotating unit with an open area facing the laser system. A camera is positioned above the wafer holder to photograph the wafer, and a warpage removing unit is provided to eliminate any warpage from the wafer.
Career Highlights
Chang Su Jun is currently employed at Eo Technics Co., Ltd., where he continues to develop innovative solutions in the field of semiconductor technology. His work has significantly impacted the efficiency and accuracy of laser marking processes in the industry.
Collaborations
He collaborates with talented coworkers, including You Hie Han and Yang Ghi Min, who contribute to the advancement of their projects and innovations.
Conclusion
Chang Su Jun is a key figure in the development of chip scale marking technology, with a focus on improving laser marking systems. His contributions are vital to the semiconductor industry, and his patents reflect his commitment to innovation and excellence.