Reiji Uchida

Title: Reiji Uchida: Inventor in Semiconductor Etching

Introduction

Reiji Uchida is an inventor based in Tokyo, Japan. His patent work addresses semiconductor manufacturing, particularly the selective etching of silicon nitride while limiting unwanted effects on silicon oxide.

Latest Patents

Uchida is associated with 1 patent, titled “Etching Solution Composition.” The invention describes an inorganic acid-based solution for selectively removing silicon nitride from semiconductor materials that also contain silicon oxide. It combines an etch inhibitor to reduce the etching of silicon oxide with a deposition inhibitor to limit silica buildup on the silicon oxide surface. The stated aim is to achieve higher silicon nitride etch selectivity while reducing silica deposition.

Career Highlights

Uchida is associated with Rasa Industries, Ltd. His patent reflects work on improving the precision and performance of chemical processes used in semiconductor fabrication.

Collaborations

Sho Nagao is identified as Uchida’s coworker. The available information does not specify their particular projects or contributions to the patent.

Conclusion

Reiji Uchida’s recorded invention focuses on a specialized etching solution designed to improve selectivity and control silica deposition in semiconductor processing.