Yoshinori Obata

Title: Yoshinori Obata: Pioneer in Semiconductor Innovations

Introduction

Yoshinori Obata, an accomplished inventor from Kawasaki, Japan, has made significant contributions to the field of semiconductor technology. With a total of three patents to his name, his innovations focus on enhancing the efficiency and performance of semiconductor memory devices.

Latest Patents

One of Yoshinori Obata's latest patents is an inspection method for semiconductor memory. This method involves inspecting a semiconductor memory that utilizes nonvolatile memory cells with ferroelectric capacitors. The process begins by shelf-aging the capacitor in a first polarized state, followed by writing a second polarized state, then shelf-aging it again before reading the second state. Importantly, the temperature or voltage used in the first step is lower than that in the final step, enabling a swift evaluation of the imprint characteristics in semiconductor memory.

His second recent patent is related to the semiconductor device and method of manufacturing the same. This invention outlines a process for creating a semiconductor device by forming contact holes in the insulating film that covers the source and drain of the MOSFET, along with the memory cell capacitor. By employing the same steps to fill the plugs into the contact holes and adding a contact hole on the capacitor's upper electrode, the patent presents a method that simplifies wire connections while minimizing damage to the capacitor.

Career Highlights

Yoshinori Obata has gained experience working for reputable companies such as Fujitsu Corporation and Fujitsu Semiconductor Limited. His role at these organizations has allowed him to apply his expertise in semiconductor technology and drive innovations in the industry.

Collaborations

Throughout his career, Obata has collaborated with notable individuals such as Yukinobu Hikosaka and Kenichi Inoue. Their combined efforts in semiconductor research and development have led to advancements that benefit the field as a whole.

Conclusion

Yoshinori Obata exemplifies the spirit of innovation within the semiconductor industry. His dedication to advancing technology through his patents and collaborative efforts positions him as a key contributor to the evolution of semiconductor memory devices. With more advancements on the horizon, Obata continues to be a figure of interest in semiconductor innovation.