Hidetoshi Tabata

Title: Hidetoshi Tabata: Innovator in Exposure Devices and Film Thickness Measurement

Introduction

Hidetoshi Tabata is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of exposure devices and methods for measuring film thickness. With a total of 2 patents, his work showcases innovative solutions that enhance technological processes.

Latest Patents

One of Hidetoshi Tabata's latest patents is an exposure device designed to expose a circuit pattern while suitably changing information data. This device includes a first light source that irradiates ultraviolet rays, a projection exposure unit for exposing a circuit pattern on a substrate, and a substrate stage for mounting the substrate. Additionally, it features a second light source for irradiating a different ultraviolet light, a spatial light modulation unit for exposing information data on the substrate, and a driving mechanism for moving the modulation unit in sync with the substrate stage.

Another significant patent is a method of measuring film thickness of a film layer on a specific material. This method involves measuring the reflection intensity spectrum, determining extreme values of wavelength, and preparing an expected value table related to reflection interference orders. The process calculates expected values of film thickness and determines true interference orders to ascertain the required film thickness. An oscilloscope or CRT is utilized to display the wavelength scanned by a monochromator and the intensity of the reflected light beam.

Career Highlights

Hidetoshi Tabata is currently associated with Orc Manufacturing Co., Ltd., where he continues to innovate and develop advanced technologies. His expertise in exposure devices and film measurement techniques has positioned him as a key figure in his field.

Collaborations

Hidetoshi has collaborated with Duk Lee, contributing to the advancement of their shared projects and innovations.

Conclusion

Hidetoshi Tabata's contributions to the fields of exposure devices and film thickness measurement reflect his dedication to innovation and technology. His patents demonstrate a commitment to enhancing processes that are vital in various applications.