Norio Moriyama

Title: Norio Moriyama: Innovator in Semiconductor Technology

Introduction

Norio Moriyama is a prominent inventor based in Tokyo, Japan, known for his significant contributions to semiconductor technology. With a total of four patents to his name, Moriyama has made strides in developing advanced exposure apparatuses and methods that enhance the precision of semiconductor manufacturing.

Latest Patents

One of Moriyama's latest patents focuses on an exposure apparatus and exposure method designed to minimize defocusing of exposing light, even in the presence of non-level portions within each shot. This innovative approach involves selecting one shot from multiple exposure unit areas on a wafer, determining the three-dimensional coordinates of 49 measurement points within that shot, and performing arithmetic operations to ascertain an "in-shot focus plane." The method utilizes adjustment values derived from positional deviations to ensure accurate exposure processing by moving the wafer vertically in accordance with measurement results. Another notable patent addresses the arrangement of alignment marks on scribing lines in semiconductor devices, allowing for larger areas for device formation while maintaining clarity in scribing line centers.

Career Highlights

Throughout his career, Norio Moriyama has worked with esteemed companies, including Oki Electric Industry Co., Ltd. and Oki Electric Industry, Ltd. His work has significantly impacted the semiconductor industry, particularly in enhancing manufacturing processes and device precision.

Collaborations

Moriyama has collaborated with notable colleagues, including Yoshio Itoh and Hiroshi Ohtsuka, contributing to advancements in semiconductor technology through teamwork and shared expertise.

Conclusion

Norio Moriyama's innovative patents and career achievements underscore his vital role in the semiconductor industry. His work continues to influence the development of more efficient and precise manufacturing techniques.