6-Layer FR4 PCB with ENIG Finish and 5oz Copper

• Material: FR4
• Layers: 6
• Surface Finish: Immersion Gold (ENIG)
• Copper Weight: 1OZ
• Board Thickness: 1.2mm
• Solder Mask: Blue
• Silkscreen: White
• Board Size: 0.9*3cm
• Panel: Yes

ONESEINE is a leading PCB manufacturer in China with extensive experience in high-frequency microwave applications including power dividers, combiners, amplifiers, base stations, and RF antennas. We maintain substantial stock of high-frequency PCB materials including Rogers, Taconic, Arlon, Isola, F4B, TP-2, and FR-4 (dielectric range: 2.2-16) for communication devices, electronics, aerospace, and military industries.

Our capabilities include 2 to 28 layer PCBs with high-precision impedance control, multi-layer blind/buried vias, mixed materials, high-Tg, copper substrates, and ceramic substrates. We offer 24-hour sample services to accelerate product development.

We support fast delivery (2-3 days) for low volume orders with no minimum order quantity (MOQ) requirements. Our expanded production capacity accommodates both prototype and large-scale production needs.

• Inner Packing: Anti-static bag or bubble wrap per piece
• Outer Packing: Standard cartons
• Palletization for ocean shipment
• Custom packaging available

• Standard FR4: Most common type with 140-150°C heat resistance
• High Tg FR4: For applications requiring >150°C thermal cycling
• High CTI FR4: Improved thermal conductivity (CTI >600V)
• Non-Copper FR4: For insulating boards and supports
• FR4 G10: Solid core with excellent mechanical and dielectric properties

• Stable dielectric constant (Dk)
• Low dielectric loss (Df) for minimal signal loss
• Thermal expansion coefficient matching copper foil
• Low water absorption
• Excellent heat/chemical resistance and mechanical strength

FR-4 is a flame-retardant, glass-reinforced epoxy laminate material (NEMA standard) used for PCB fabrication. Our standard FR-4 properties include:

• High Tg (150Tg/170Tg) and Td (>345°C)
• Low CTE (2.5%-3.8%)
• Dielectric Constant (@1 GHz): 4.25-4.55
• Dissipation Factor (@1 GHz): 0.016
• UL 94V-0 rated, CTI ≥3
• Compatible with lead-free assembly
• Laminate thickness: 0.005" to 0.125"

FR-4 is widely used for single-sided, double-sided, and multilayer PCBs, as well as in relays, switches, transformers, and various electrical components.