Application of photosensitive polyimide

Ⅰ. Application of photosensitive polyimide

1. Optical storage: Photosensitive polyimide materials are widely used in the field of optical storage. Its fast response characteristics make it an important material for preparing high-capacity and high-density storage media. Using laser to write device numbers, high-brightness tiny "dots" can be formed in the photosensitive polyimide film. Some tiny pits are arranged into many tracks, and data information can be accessed at high speed through the control of the optical read-write head.

2. Image transmission: Photosensitive polyimide can also be used for image transmission. When irradiated with light, the alternation of the color area formed by polyimide and the unformed color area can form an image. Its advantages are fast response speed and high responsiveness, and high-quality image transmission can be performed.

3. Sensors: Photosensitive polyimide can also be used to make sensors. For example, when photosensitive polyimide is used to make temperature or pressure sensors, the absorption spectrum of polyimide changes when exposed to light, and its absorption spectrum is related to signals such as temperature or pressure. At the same time, its fast response speed and good reversibility make it an excellent sensor material. ‌

4. Microelectronics: PSPI is mainly used as a photoresist in the microelectronics field. Its photosensitivity and heat resistance play a key role in the chip manufacturing process, protecting chips and wires, thereby determining the life of the chip. ‌

5. Display panel: In the field of display panels, PSPI plays an important role as an insulating layer material, a buffer layer material, etc., in improving the display effect and extending the life of the display panel. ‌

6. Chip packaging: PSPI is also used in the field of chip packaging. By putting on a "space suit" for the chip, it provides protection to prevent external tearing and scratching. At the same time, it has good high temperature resistance, insulation resistance and stability, which is crucial to improving the stability and reliability of the chip. ‌

7. Printed circuit boards: The application of PSPI in the field of printed circuit boards improves the performance and reliability of circuit boards and ensures the stable operation of electronic products. ‌

8. Aerospace: PSPI's application in the field of aerospace provides important technical support for aerospace materials thanks to its excellent high and low temperature resistance, mechanical properties, dielectric properties and biocompatibility.