Hiroki Shirai

Title: Hiroki Shirai: Innovator in Semiconductor Technology

Introduction

Hiroki Shirai is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 7 patents. His work focuses on enhancing the performance and reliability of semiconductor devices.

Latest Patents

One of his latest patents is titled "Semiconductor device with protective layer and method of manufacturing same." This invention aims to provide a semiconductor device that features reduced variation in capacitor characteristics. In this design, a protective layer is strategically placed at the periphery of the upper end portion of a recess. This protective layer possesses a dielectric constant that is higher than that of the insulating layer located in the same layer, which is part of a multilayer wiring layer in a logic circuit region.

Another notable patent is "Semiconductor device and method of manufacturing semiconductor device." This invention describes a semiconductor device that includes a substrate and a multi-layered interconnect formed on the substrate. The interconnect consists of multiple layers, each made up of an interconnect and an insulating layer. Additionally, a memory circuit is formed in a designated region on the substrate, which includes a peripheral circuit and at least one capacitor element embedded within the multi-layered interconnect. The design ensures that the top surfaces of the upper interconnect and the interconnect configuring the logic circuit are aligned to the same plane.

Career Highlights

Hiroki Shirai has worked with notable companies in the semiconductor industry, including Renesas Electronics Corporation and NEC Electronics Corporation. His experience in these organizations has contributed to his expertise and innovative capabilities in semiconductor technology.

Collaborations

Throughout his career, Hiroki has collaborated with talented individuals such as Takashi Sakoh and Kenichiro Hijioka. These collaborations have further enriched his work and led to advancements in semiconductor device design.

Conclusion

Hiroki Shirai is a distinguished inventor whose contributions to semiconductor technology have made a significant impact in the field. His innovative patents and collaborations reflect his dedication to advancing technology and improving device performance.