Company Filing History:
Years Active: 2007-2013
Title: Jongkook Park: Innovator in Laser Technology
Introduction
Jongkook Park is a notable inventor based in Nashua, NH (US). He has made significant contributions to the field of laser technology, holding a total of 6 patents. His work focuses on innovative methods for cutting and separating materials, particularly in semiconductor applications.
Latest Patents
One of Jongkook Park's latest patents is a "System and method for cutting using a variable astigmatic focal beam spot." This invention utilizes lasers with an anamorphic beam delivery system to create a variable astigmatic focal beam spot. This technology is particularly useful for cutting applications, such as scribing semiconductor wafers, including light-emitting diode (LED) wafers. The system comprises a series of optical components that intentionally introduce astigmatism, resulting in focal points that are separated into vertical and horizontal meridians. This design produces an asymmetric yet sharply focused beam spot, enhancing the efficiency of the cutting process. By adjusting the astigmatic focal points, the aspect ratio of the compressed focal beam spot can be modified, allowing for precise control of energy density at the target without altering the laser output power. This optimization leads to increased scribing speeds while minimizing excessive heating and collateral material damage.
Another significant patent by Park is the "Method of separating layers of material." This innovative lift-off process involves irradiating the interface between a layer of material and its substrate to facilitate separation. The method allows the layer to be divided into multiple sections that correspond to dies on the substrate, with a homogeneous beam spot shaped to cover an integer number of these sections.
Career Highlights
Throughout his career, Jongkook Park has worked with several companies, including J.P. Sercel Associates Inc. and IPG Microsystems LLC. His experience in these organizations has contributed to his expertise in laser technology and material processing.
Collaborations
Jongkook Park has collaborated with notable individuals in his field, including Jeffrey P. Sercel and Patrick J. Sercel. These collaborations have further enriched his work and innovations in laser applications.
Conclusion
Jongkook Park is a distinguished inventor whose contributions to laser technology have advanced the field significantly. His innovative patents and career achievements reflect his dedication to improving material processing techniques.