Product Overview
HD-7540 is a 38 μm dry film photoresist for LDI imaging, anti-plating, and direct etching on hard boards.
It provides high adhesion and high resolution for stable pattern formation. The product is suitable for hard-board anti-plating and direct corrosion processes, with reliable stripping performance and laser direct imaging capability.
Technical Specifications
| Properties | Parameters |
|---|---|
| Film Thickness | 38 μm |
| Exposure Energy (SST = 7/21) | 14 mJ/cm² |
| Sensitivity (21ST) | 7 ± 1 |
| Resolution (SST = 6/21) | 45 μm |
| Adhesion (SST = 6/21) | 50 μm |
| Stripping Time (3% NaOH, 50 °C) | 60 s |
Key Features
LDI Compatible
Supports laser direct imaging with stable patterning performance.
High Adhesion
Helps preserve pattern definition during anti-plating and etching.
High Resolution
Suitable for hard-board circuit imaging applications.
Applications
Hard-board anti-plating, direct etching, LDI imaging, and circuit pattern formation.