Takahiko Hashidzume

Title: Takahiko Hashidzume: Innovator in Semiconductor Technology

Introduction

Takahiko Hashidzume is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 5 patents. His work focuses on the development of advanced semiconductor memory devices, which are crucial for modern electronic applications.

Latest Patents

One of his latest patents is for a semiconductor memory device and method for fabricating the same. This invention features a memory region formed on a semiconductor substrate, where multiple memory cells, each containing a memory transistor, are arranged in a matrix. The design incorporates a plurality of impurity diffusion layers, known as bit lines, and gate electrodes, referred to as word lines, that intersect each other. Notably, the gate electrode of each memory transistor has a unique upper surface that forms a protruding portion, which is higher in the middle than at the edges. Additionally, a silicide layer is applied to the upper surface of this protruding portion.

Another significant patent by Hashidzume is for a semiconductor memory and method for manufacturing the same. This invention includes memory cells with bit lines made from a diffusion layer in a semiconductor substrate. It features charge-trapping gate insulating films positioned between the bit lines and word lines, which are formed on the gate insulating films. An interlayer insulating film is created over the memory cells, with bit line contact plugs integrated into the interlayer insulating film to connect to the bit lines. Furthermore, a light-blocking film is strategically placed over parts of the interlayer insulating film, covering the memory cells and extending from the surface to the interior near the bit line contact plugs.

Career Highlights

Takahiko Hashidzume is currently employed at Matsushita Electric Industrial Co., Ltd., a leading company in the electronics industry. His innovative work has positioned him as a key figure in the development of semiconductor technologies.

Collaborations

Throughout his career, Hashidzume has collaborated with notable colleagues, including Fumihiko Noro and Nobuyoshi Takahashi. These partnerships have contributed to the advancement of semiconductor research and development.

Conclusion

Takahiko Hashidzume's contributions to semiconductor technology through his patents and collaborations highlight his importance in the field. His innovative designs continue to influence the development of modern electronic devices.