UBE Corporation
A Japanese chemical company, formerly Ube Industries, whose electronic materials include polyimide varnish and film, high-purity chemicals and products for semiconductor gases.
UBE・Process chemicals, gases and targets・Last updated: October 27, 2026
Overview
UBE Corporation, formerly Ube Industries, is a chemicals and materials company. Its electronic materials include polyimide varnishes and films, high-purity chemicals and semiconductor gas-related products.
It also makes nylon resins and battery materials.
Polyimide stays stable at temperatures above 300 °C and insulates well, so it is used as a stress buffer and passivation layer on chips, as an insulator between redistribution layers in wafer-level packages and as the base film of flexible circuits. Varnish is coated as a liquid and cured, while film is laminated.
Business: Polyimide varnish and film, high-purity chemicals
Why it matters
- Polyimide withstands high temperatures and is used for insulating and protective layers in packages and flexible circuits.
- Polyimide film is the base material for flexible printed circuits.
Main products
- •Polyimide varnish
- •Polyimide film
- •High-purity chemicals