Precision Insulation Dielectric Coating Solution Semiconductor wafer polyimide ultrasonic spraying process | Precision insulation dielectric coating solution Process Overview: Precision Coating Technology for Wafer Replacement of Traditional Spin Coating In semiconductor wafer manufacturing and advanced packaging processes, polyimide coating is the core process for achieving device insulation isolation, surface protection, and dielectric layer construction. The ultrasonic spraying process can achieve uniform deposition of high-quality polyimide films before wafer [...]