Toray Industries
A Tokyo-based chemical and materials company whose electronic materials include photosensitive polyimide coatings used for chip surface protection and as insulation in redistribution layers.
東レ・Process chemicals, gases and targets・Last updated: October 27, 2026
Overview
Toray Industries is headquartered in Chuo, Tokyo and is known for fibers, plastics and carbon fiber. In semiconductors it supplies polyimide coatings, including photosensitive types that can be patterned like a photoresist.
These coatings protect the chip surface and insulate the redistribution layers in wafer-level packages. Group company Toray Engineering makes assembly equipment.
Business: Photosensitive polyimide coatings
Why it matters
- Fan-out and other wafer-level packages build several redistribution layers, each insulated with a polymer such as polyimide.
- A photosensitive polyimide removes the need for a separate resist and etch step to pattern it.
Main products
- •Photosensitive polyimide coatings
- •Polyimide coatings
Sites in Japan
Head officeHeadquarters
Chuo, Tokyo