1, Nanda Optoelectronics
In terms of photoresist, the company has established a professional R&D team, and established a large-scale R&D center and 100 upgraded photoresist pilot production line. The progress and achievements of product R&D have been recognized by industry experts. Secondly, the company has the ability to develop functional monomers, functional resins and other photoresist materials, and a number of advanced photoresist products have been well received by customers.
2. High light sensitivity
Since its establishment, the company has been focusing on R&D and producing photoresist and PCB photosensitive ink. The company's photoresist products are ultraviolet positive glue and ultraviolet negative glue, and the main application fields are flat panel display, light emitting diodes, integrated circuits and so on.
3. Jing Rui Electric Materials Company
The company is one of the few enterprises that mass-produce photoresist in China. After years of research and development and accumulation, the company's photoresist products have reached the advanced level at home and abroad, the photoresist product sequence is complete, and the industrialization scale and profitability are at the leading level in the industry.
Introduction of photoresist principle
When irradiated by ultraviolet light or electron beam, the characteristics of photoresist materials will change. After developing with developer, the exposed negative photoresist or unexposed positive photoresist will remain on the surface of the substrate, so that the designed micro-nano structure can be transferred to the photoresist. Through subsequent etching, deposition and other processes, the pattern can be further transferred to the substrate below the photoresist, and finally the photoresist can be removed by using a glue remover.
Therefore, the function of photoresist is to protect the substrate surface as an etching resistant layer. Photoresist is just an image, because it is a colloidal liquid in appearance and usually covers the surface of the substrate evenly in the form of a thin film.
Refer to the above content: Baidu Encyclopedia-Jing Rui Electrical Materials