Sang Wan Cho

Title: Innovations of Sang Wan Cho in Pb-free Solder Alloy

Introduction

Sang Wan Cho is an accomplished inventor based in Seoul, South Korea. He has made significant contributions to the field of electronics through his innovative work on solder alloys. His expertise has led to the development of a unique Pb-free solder alloy that enhances the reliability and performance of electronic components.

Latest Patents

Sang Wan Cho holds a patent for a Pb-free solder alloy, which is designed for mounting electronic parts on printed circuit boards. This solder alloy is notable for its high resistance to oxidation and impact. The composition of the alloy includes 2.8 wt % to 4.2 wt % silver (Ag), 0.3 wt % to 0.8 wt % copper (Cu), 0.0001 wt % to 0.01 wt % germanium (Ge), and 0.001 wt % to 0.2 wt % indium (In), with the balance being tin (Sn). This specific formulation results in a solder alloy that exhibits high shear strength and a low brittleness factor after bonding, ensuring high-quality mechanical properties for forming durable joints.

Career Highlights

Sang Wan Cho is currently associated with Mk Electron Co., Ltd., where he continues to innovate in the field of electronic materials. His work has been instrumental in advancing the technology used in electronic manufacturing, particularly in the development of environmentally friendly solder solutions.

Collaborations

Sang Wan Cho collaborates with his coworker, Suk Joon Lim, to further enhance the research and development of solder alloys. Their combined expertise contributes to the ongoing innovation in electronic component assembly.

Conclusion

Sang Wan Cho's contributions to the development of Pb-free solder alloys represent a significant advancement in electronic manufacturing. His innovative approach not only improves the performance of electronic components but also aligns with environmental sustainability goals.