Masaharu Ninomiya

Title: The Innovations of Masaharu Ninomiya

Introduction

Masaharu Ninomiya is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of five patents. His work focuses on methods for manufacturing semiconductor wafers and strained silicon-on-insulator substrates.

Latest Patents

One of his latest patents is a method of manufacturing a semiconductor wafer by forming a strain relaxation SiGe layer on an insulating layer of a silicon-on-insulator (SOI) wafer. This innovative process involves creating a lattice relaxation or a partly lattice-relaxed strain relaxation SiGe layer on the insulating layer, with a gradient of germanium concentration that decreases toward the surface. The wafer is then subjected to heat treatment in an oxidizing atmosphere.

Another notable patent is for producing a strained Si-SOI substrate. This method includes growing a SiGe mixed crystal layer on an SOI substrate, forming protective films, and implanting light element ions near the interface between the silicon layer and the buried oxide film. The process involves multiple heat treatments at varying temperatures to achieve the desired strained silicon layer.

Career Highlights

Masaharu Ninomiya has worked with notable companies such as Sumco Corporation and Kyushu University. His experience in these organizations has allowed him to develop and refine his innovative techniques in semiconductor manufacturing.

Collaborations

He has collaborated with esteemed colleagues, including Koji Matsumoto and Ichiro Shiono, contributing to advancements in semiconductor technology.

Conclusion

Masaharu Ninomiya's contributions to the field of semiconductor technology through his patents and collaborations highlight his role as a key innovator in this industry. His work continues to influence the development of advanced semiconductor materials and manufacturing processes.