RO3210 4-Layer 1.22mm High-Frequency PCB with ENIG Finish
1.Introduction
Rogers' RO3210 high-frequency circuit materials are ceramic-filled laminates reinforced with woven fiberglass. These materials are engineered to deliver outstanding electrical performance and mechanical stability, with a key distinguishing feature—improved mechanical rigidity.
RO3210 laminates combine the surface smoothness of non-woven PTFE laminates (enabling finer line etching tolerances) with the rigidity of woven-glass PTFE laminates. These materials can be fabricated into printed circuit boards using standard PTFE processing techniques, making them ideal for high-frequency, multi-layer applications.
2.Key Performance Features
Dielectric Constant (Dk): 10.2 ± 0.5
Dissipation Factor: 0.0027 @ 10GHz
Thermal Expansion Matched to Copper:
X/Y: 13 ppm/°C
Z: 34 ppm/°C
Decomposition Temperature (Td): 500°C (TGA)
Thermal Conductivity: 0.81 W/m·K
Flammability Rating: UL 94 V0
3.PCB Specifications at a Glance
| Parameter | Specification |
|---|---|
| Base Material | RO3210 |
| Layer Count | 4 layers |
| Board Dimensions | 60mm × 55mm (±0.15mm) |
| Min. Trace/Space | 4/6 mils |
| Min. Hole Size | 0.3mm |
| Blind Vias | No |
| Finished Thickness | 1.24mm |
| Outer Layer Cu Weight | 1oz (35µm) |
| Via Plating Thickness | 20µm |
| Surface Finish | Immersion Gold (ENIG) |
| Silkscreen (Top/Bottom) | No |
| Solder Mask (Top/Bottom) | No |
| Electrical Testing | 100% tested before shipment |
4.PCB Stackup: 4-layer rigid PCB
| Layer | Material/Type | Thickness |
|---|---|---|
| Layer 1 (Top) | Copper | 35 μm |
| Core | Rogers RO3210 | 0.508 mm (20 mil) |
| Layer 2 | Copper | 35 μm |
| Dielectric | Prepreg | 0.102 mm |
| Layer 3 | Copper | 35 μm |
| Core | Rogers RO3210 | 0.508 mm (20 mil) |
| Layer 4 (Bottom) | Copper | 35 μm |
5.PCB Statistics:
Components: 12
Total Pads: 38
Thru Hole Pads: 28
Top SMT Pads: 10
Bottom SMT Pads: 0
Vias: 32
Nets: 2
6.Typical Applications
Automotive collision avoidance systems
Automotive global positions satellite antennas
Wireless telecommunications systems
Microstrip patch antennas for wireless communications
Direct broadcast satellites
Datalink on cable systems
Remote meter readers
Power backplanes
LMDS and wireless broadband
Base station infrastructure
7.Quality Assurance
IPC-Class 2 compliant
100% electrical tested
Global availability
Gerber RS-274X support