PSPI
PSPI PSPI (photosensitive polyimide) is a very important semiconductor material, and also a very bottleneck material. What is PSPI? PSPI, the full name of which is "photosensitive polyimide", combines the excellent physical and chemical properties of polyimide (PI) with the characteristics of photosensitive materials. PSPI is similar to photoresist. Under the radiation of ultraviolet light, α rays, X-rays, etc., the structure of the irradiated part will change, and it can [...]
