Sung-Jin Kim

Title: Innovations of Sung-Jin Kim

Introduction

Sung-Jin Kim is a notable inventor based in Hsin-Chu, Taiwan. He has made significant contributions to the field of semiconductor packaging, holding two patents that showcase his innovative approach to technology.

Latest Patents

One of his latest patents is for a substrate for solder joint. This invention includes a core layer with at least one conductive trace formed on it. The conductive trace features a circular terminal as a pad, which has multiple hollow portions that expose predetermined areas of the core layer underneath. These hollow portions are strategically arranged at equal intervals and spaced from the periphery of the circular pad. Additionally, a solder mask covers the conductive trace, featuring openings that allow parts of the pad and core layer to be exposed. This design facilitates the bonding of a conductive element to the exposed areas.

Another significant patent by Sung-Jin Kim is a method for fabricating a window ball grid array (WBGA) semiconductor package. This method involves preparing a substrate with a through opening and ball pads on its lower surface. A chip is mounted over the opening using adhesive, leaving gaps between the chip and substrate. The chip is then electrically connected to the substrate through bonding wires that pass through the opening. A spacer is attached to the substrate's lower surface, which has a through hole and a recessed portion. During the molding process, the spacer is clamped between the substrate and a mold, allowing resin material to encapsulate the chip and bonding wires effectively.

Career Highlights

Sung-Jin Kim is currently employed at Ultratera Corporation, where he continues to innovate in semiconductor technology. His work has contributed to advancements in the efficiency and reliability of semiconductor packages.

Collaborations

He collaborates with talented coworkers, including Chih-Horng Horng and Ming-Sung Tsai, who share his commitment to innovation in the field.

Conclusion

Sung-Jin Kim's contributions to semiconductor technology through his patents demonstrate his expertise and dedication to innovation. His work at Ultratera Corporation continues to influence the industry positively.