FR408HR High-Performance 4-Layer PCB Specifications for Enhanced Reliability

1.Overview of FR408HR Laminates

The FR408HR laminate and prepreg materials are produced using Isola's cutting-edge multifaceted resin system, enhanced with electrical grade (E-glass) fabric. This innovative approach yields a 30% increase in Z-axis expansion and provides 25% greater electrical bandwidth (lower losses) compared to competing products in the market. These features, combined with exceptional moisture resistance at reflow, ensure a product that excels thermally and electrically.

Moreover, the FR408HR system exhibits laser fluorescence and UV blocking capabilities, maximizing compatibility with Automated Optical Inspection (AOI) systems, optical positioning systems, and photo-imagable solder mask imaging solutions.

2.Key Features of FR408HR:

Glass Transition Temperature (Tg): 190°C by DSC
Dielectric Constant: 3.65 @ 10GHz
Dissipation Factor: 0.0095 @ 10GHz
RoHS Compliant: Yes
Compatible with FR-4 Processes: Yes
CAF Resistant: Yes
Lead-Free Assembly Compatibility: Yes
Pitch Capability: 0.8 mm
Reflow Capability: 6x 260°C
Solder Float Capability: 6x 288°C
Delamination Resistance (TMA): T260 > 60 minutes, T288 > 30 minutes
Flammability Rating for Laminate & Laminated Prepreg: UL-94 V0

3.Essential Specifications for FR408HR PCB

4.PCB Stack-up Structure: 4-layer Rigid PCB (Component Side on Top)

5.PCB Statistics:

Total Components: 92
Total Pads: 201
Through Hole Pads: 75
Top SMT Pads: 87
Bottom SMT Pads: 39
Vias: 72
Nets: 8

6.Additional Details

Type of Artwork Supplied: Gerber RS-274-X
Quality Standard: IPC-Class-2
Availability: Worldwide

7.Typical Applications of FR408HR PCBs:

High-Density Interconnect (HDI) PCBs
High-Speed Digital Circuits
Applications Requiring High Thermal Reliability
Networking and Communication Devices
Storage Solutions and Peripherals
Medical, Industrial, and Instrumentation Equipment