Custom White Solder Mask Double-Sided ENIG PCB – Immersion Gold Circuit Board
This double-sided FR-4 PCB features a clean white LPI solder mask with ENIG (electroless nickel immersion gold) finish. Ultra-flat, oxidation-free gold pads make it ideal for fine-pitch SMD, LED backlight and high-reliability applications where consistent assembly quality matters.
Key Features
- Double-sided design with plated through-holes and ≥20 μm hole wall copper
- ENIG finish (Ni 3–6 μm / Au 0.05–0.1 μm): ultra-flat pads for fine-pitch and BGA/QFN packages
- White solder mask with high contrast for easy optical inspection and rework
- 100% AOI + electrical test; RoHS-compliant, lead-free, halogen-free and sulfur-free
Technical Specifications
| Base Material | FR-4 (Tg 150–170 available) |
| Layer Count | 2 (double-sided) |
| Board Thickness | 1.6 mm (0.8–2.0 mm customizable) |
| Copper Thickness | 1 oz (2–6 oz heavy copper available) |
| Min. Line Width / Spacing | 0.1/0.1 mm (4/4 MIL) |
| Min. Hole Diameter | 0.2 mm |
| Hole Wall Copper | ≥20 μm |
| Solder Mask | White LPI |
| Silkscreen | White |
| Quality Standard | IPC Class 2 |
| Certification | ISO 9001, RoHS |
Applications
LED lighting and backlight modules, medical devices, automotive electronics, communication modules and smart hardware.
Custom dimensions, copper weights and panelization are supported. Send your Gerber files for a fast quotation.
