Fumihiko Nitta

Title: Fumihiko Nitta: Innovator in Semiconductor Technology

Introduction

Fumihiko Nitta is a prominent inventor based in Tokyo, Japan, known for his significant contributions to semiconductor technology. With a total of 14 patents to his name, Nitta has made remarkable advancements in the field, particularly in memory cell arrays and magnetoresistive elements.

Latest Patents

Nitta's latest patents include a semiconductor device and its manufacturing method. This invention involves a semiconductor device that features a memory cell array formed of memory cells utilizing a storage element by a variable resistor and a select transistor. A buffer cell is strategically arranged between a sense amplifier and the memory cell array, as well as between a word driver and the memory cell array. The resistive storage element in the memory cell connects to a bit-line via a contact formed above it. In contrast, the buffer cell maintains a state of being covered with an insulator during the contact processing in the memory cell, effectively avoiding exposure and sublimation of a chalcogenide film used in the resistive storage element. Another notable patent describes a semiconductor device that includes a spin torque written in-plane magnetization magnetoresistive element, which can change its magnetization state based on the direction of current flow. This device features a first wiring that is electrically coupled with the magnetoresistive element and extends along the main surface of the semiconductor substrate.

Career Highlights

Throughout his career, Nitta has worked with leading companies in the semiconductor industry, including Renesas Electronics Corporation and Renesas Technology Corporation. His work has significantly impacted the development of advanced semiconductor devices.

Collaborations

Nitta has collaborated with notable colleagues such as Satoru Hanzawa and Nozomu Matsuzaki, contributing to various innovative projects in the semiconductor field.

Conclusion

Fumihiko Nitta'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 advancements in memory cell technology and magnetoresistive elements.