and my country’s market demand relies on imports.

Photosensitive polyimide (PSPI) is a type of organic material that has both an imine ring and a photosensitive gene in the polymer chain and has excellent properties. Photosensitive polyimide has excellent thermal stability, photosensitivity, electrical insulation and mechanical properties. With its good properties, photosensitive polyimide can be used as an insulating layer material, buffer layer material, optical waveguide material, and buffer protection material. etc., used in…