Shunichi Chiba

Title: Shunichi Chiba: Innovator in Copper Alloy Technology

Introduction

Shunichi Chiba is a notable inventor based in Aizuwakamatsu, Japan. He has made significant contributions to the field of materials science, particularly in the development of high-strength copper-based alloys. With a total of 3 patents to his name, Chiba's work has implications for various industrial applications.

Latest Patents

Chiba's latest patents include a high-strength copper-based alloy that is free from smutting during pretreatment. This innovative alloy is designed to enhance the performance of lead frame materials used in resin-sealed semiconductor devices. The specific composition of the alloy includes 2 to 4% nickel, more than 0.5 to 1% silicon, 0.1 to 2% zinc, more than 0.01 to 0.05% magnesium, 0.05 to 1% tin, with the balance being copper and inevitable impurities. Notably, the alloy contains 20 ppm or less of sulfur and carbon, which contributes to its improved adhesion strength to epoxy resin as a sealing material.

Career Highlights

Chiba is currently employed at Mitsubishi Shindoh Co., Ltd., where he continues to innovate in the field of materials engineering. His work has been instrumental in advancing the technology behind semiconductor devices, making them more efficient and reliable.

Collaborations

Chiba has collaborated with esteemed colleagues such as Rensei Futatsuka and Junichi Kumagai. Their combined expertise has fostered a productive environment for research and development in the field of copper alloys.

Conclusion

Shunichi Chiba's contributions to the development of high-strength copper-based alloys have positioned him as a key figure in materials science. His innovative patents and collaborations reflect his commitment to advancing technology in the semiconductor industry.