Chang Deok Lee

Title: Chang Deok Lee: Innovator in Semiconductor Technology

Introduction

Chang Deok Lee is a prominent inventor based in Uijeongbu-si, South Korea. He has made significant contributions to the field of semiconductor technology, holding a total of 6 patents. His innovative work focuses on enhancing the efficiency and functionality of semiconductor devices, particularly in mobile applications.

Latest Patents

One of his latest patents is the "Stackable Wafer Level Package and Fabricating Method Thereof." This invention discloses a stackable wafer level package where bond pads or redistribution layers are arranged on a bottom semiconductor die. Metal pillars are formed on some of the bond pads positioned around the edges of the bottom semiconductor die. A top semiconductor die is electrically connected to the other bond pads, which do not have metal pillars, positioned around the center of the bottom semiconductor die through conductive bumps. The metal pillars and the top semiconductor die are encapsulated by an encapsulant, and a plurality of interconnection patterns electrically connected to the metal pillars are formed on the surface of the encapsulant. Solder balls are attached to these interconnection patterns. This stack structure reduces the thickness and footprint of the wafer level package, making it highly suitable for mobile applications.

Another notable patent is the "Structure of Bond Pad for Semiconductor Die and Method Therefor." This invention describes a bond pad with a bonding region and a test region formed on the bond pad, which is adjacent to the bonding region.

Career Highlights

Chang Deok Lee has worked with notable companies in the semiconductor industry, including Amkor Technology, Inc. and Amkor Technology Korea, Inc. His experience in these organizations has contributed to his expertise in semiconductor packaging and design.

Collaborations

Throughout his career, Chang Deok Lee has collaborated with talented individuals such as Do Hyun Na and Sang Jae Jang. These collaborations have further enriched his work and innovations in the semiconductor field.

Conclusion

Chang Deok Lee is a distinguished inventor whose contributions to semiconductor technology have made a significant impact on mobile applications. His innovative patents and career achievements reflect his dedication to advancing the field.