Hiroyasu Ishizuka

Title: Hiroyasu Ishizuka: Innovator in Semiconductor Technology

Introduction

Hiroyasu Ishizuka is a prominent inventor based in Ome, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 11 patents. His innovative designs have paved the way for advancements in integrated circuit devices.

Latest Patents

One of his latest patents is a semiconductor integrated circuit device featuring an NMOS with a high resistance drain terminal. This design includes a 'PAD on I/O cell' structure, where the pad lead part is strategically placed almost in the center of the I/O part to minimize the chip layout area. In this configuration, a transistor is positioned closest to the semiconductor chip's periphery. The layout allows for a resistance above the transistor, with a first and second diode situated above the resistance. Additionally, a second transistor is placed above the diodes, and a logic block is positioned above the second transistor, facilitating an efficient design. Another notable patent is a semiconductor integrated circuit device that comprises I/O cells arranged around a core region. Each I/O cell includes a level shifter circuit, an I/O logic circuit, and an I/O buffer circuit, optimizing the arrangement of these components for enhanced performance.

Career Highlights

Hiroyasu Ishizuka has worked with notable companies, including Renesas Electronics Corporation. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.

Collaborations

Throughout his career, Ishizuka has collaborated with talented individuals such as Kazuo Tanaka and Kousuke Okuyama. These partnerships have fostered a creative environment that has led to groundbreaking advancements in the field.

Conclusion

Hiroyasu Ishizuka's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of integrated circuit devices, showcasing the importance of innovation in technology.