Won K Choi

Title: Innovations by Won K Choi: Lead-Free Solder Composition

Introduction

Won K Choi, an esteemed inventor based in Mount Kisco, NY, has made significant contributions to the field of materials science with his innovative patent. Holding a single patent, Choi has focused on developing a sustainable alternative in solder materials, which has crucial applications in electronics manufacturing.

Latest Patents

Choi's pivotal invention is a lead-free tin-silver-copper alloy solder composition, which addresses the growing environmental concerns associated with traditional lead-based solders. The patented solder composition consists of a substantially lead-free alloy containing tin (Sn), silver (Ag), and copper. Notably, the tin constitutes at least about 90% of the alloy’s weight, while the silver is present in a concentration sufficiently small to suppress the formation of Ag-Sn plates during solidification. The alloy's cooling process is carefully designed to prevent undesirable crystal formations, ensuring greater reliability and efficiency in applications.

Career Highlights

Currently, Won K Choi is affiliated with the International Business Machines Corporation (IBM), a leader in technological advancements. His role at IBM has allowed him to work on next-generation materials that are essential for sustainable technology solutions. Choi's dedication to innovation is evident from his research, focused on improving the safety and performance of products in the electronics industry.

Collaborations

Throughout his career, Choi has collaborated with notable individuals such as Charles C Goldsmith and Timothy A Gosselin. Working alongside these talented professionals, he has contributed to the development and refinement of solder materials that align with modern environmental standards.

Conclusion

Won K Choi's contributions to the field of lead-free solder compositions exemplify his commitment to innovation and sustainable practices in electronics. His patent has opened new avenues for research and application within the industry, showcasing the importance of eco-friendly materials in technological advancements. With his ongoing work at IBM and collaborations with esteemed colleagues, Choi continues to be a pivotal figure in driving progress in the realm of materials science.