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AQUA MER®

The AQUA MER® MI300 series is a high-performance dry film photoresist specifically developed for inner layer circuit formation in printed circuit boards (PCBs). It supports ultra-fine patterns of 1–2 mil lines, offers excellent adhesion, and is highly resistant to acid etching processes. Designed for precision processing, it delivers high yield and reliability, making it ideal for use in LDI and AOI environments.

Product Specifications
The MI300 series includes two models, MI312 and MI315, each with distinct film thickness, exposure energy, and adhesion performance. Both are fully compatible with water-based development and enable highly accurate 1–2 mil line patterning, verified by SEM imaging.

Key Features & Differentiators
AQUA MER MI300 offers the following outstanding features:
- High-resolution support for 1–2 mil line/space patterns
- Excellent adhesion for stable high aspect ratio structures
- High contrast suitable for AOI (Automated Optical Inspection)
- Strong resistance to acid etching, ensuring high yield
- Fully water-developable, contributing to environmental sustainability

Target Industries & Applications
The MI300 series is suitable for the following industries and applications:
- PCB manufacturing: Inner layer processing for multilayer or build-up boards
- Electronic component production: High-resolution circuit applications
- High-frequency circuit design: Precise line width control for RF boards

Why Choose the MI300 Series
- Consistent performance in exposure, development, and etching steps
- SEM-verified ultra-fine patterning down to 1–2 mil
- Local manufacturing in Thailand ensures stable supply and technical support
- Application-specific options with MI312 and MI315 models

※For further details, please contact us.