Hee Yul Lee

Title: Hee Yul Lee: Innovator in Lead-Free Solder Technology

Introduction

Hee Yul Lee is a prominent inventor based in Seoul, South Korea. He is known for his contributions to the field of solder technology, particularly in developing lead-free solder compositions. His innovative work has significant implications for electronics manufacturing and environmental safety.

Latest Patents

Hee Yul Lee holds a patent for a lead-free solder that contains a specific composition of tin (Sn), silver (Ag), and bismuth (Bi). The solder includes approximately 1.5 wt % to about 2.5 wt % silver, about 3 wt % to about 6 wt % bismuth, and a deoxidizing agent ranging from about 0.005 wt % to about 0.1 wt %. The balance of the composition is tin. This lead-free solder is designed to improve wettability, lower the melting point, minimize oxidation layer formation in solder baths, reduce brittleness, and enhance thermal shock and drop resistance.

Career Highlights

Hee Yul Lee is associated with Mk Electron Co., Ltd., where he has made significant advancements in solder technology. His work has been instrumental in promoting environmentally friendly alternatives to traditional lead-based solders.

Collaborations

Hee Yul Lee collaborates with talented individuals such as Young Woo Lee and Kyung Kyun Kang, who contribute to the innovative environment at Mk Electron Co., Ltd.

Conclusion

Hee Yul Lee's contributions to lead-free solder technology reflect his commitment to innovation and environmental sustainability. His work continues to influence the electronics industry positively.