Product Overview
Rogers RO4350B materials are proprietary woven glass reinforced hydrocarbon/ceramics with electrical performance close to PTFE/woven glass and the manufacturability of epoxy/ glass. This advanced high-frequency laminate delivers exceptional performance for demanding RF and microwave applications while maintaining cost-effectiveness and ease of processing.
Key Features & Benefits
Superior Electrical Performance
- Dielectric Constant (Dk): 3.48 +/- 0.05 @ 10GHz
- Low Loss Factor: Dissipation Factor (Tan δ): 0.0037 @ 10GHz
- Temperature Stability: Thermal Coefficient: 50 ppm/°C (-50°C to 150°C)
- Stable electrical characteristics at different frequencies
Thermal Management Excellence
- High Thermal Conductivity: 0.69 W/m/°K @ 50°C
- Glass Transition Temperature: TG > 280°C (536°F)
- Low Thermal Expansion: Z-axis CTE: 32 ppm/°C
Manufacturing Advantages
- FR4 Compatible Processing: RO4350 Series laminates can be easily converted into printed circuit boards using standard FR4 circuit board processing techniques
- No Special Treatment Required: Unlike high-performance PTFE-based materials, RO4350 series laminates do not require special preparation processes such as sodium etching
- Cost-Effective: Available at a fraction of the cost of conventional microwave laminates
- UL 94 V-0 Rated: These materials are UL 94 V-0 rated for active devices and high power RF designs
Material Composition
Rogers 4350B is a high-performance printed circuit board (PCB) material known for its exceptional electrical and thermal properties featuring:
- Base Material: ceramic-filled hydrocarbon thermoset resin system
- Reinforcement: Woven glass fabric for dimensional stability
- Density: 1.9 gm/cm³
Available Specifications
Thickness Options
0.004″(0.101mm), 0.066″(0.168mm), 0.010″(0.254mm), 0.0133″(0.338mm), 0.0166″(0.422mm), 0.020″(0.508mm), 0.030″(0.762mm), 0.060″(1.524mm)
Panel Sizes
12″×18″ (305×457mm), 24″×18″ (610×457mm), 24″×36″ (610×915mm), 48″×36″ (1.224m×457mm)
Target Applications
Rogers 4350 PCB application: Cellular base station antenna and power amplifier, Microwave point to point connection (P2P), Automotive radar and sensors, Radio frequency identification (RFID) tags, LNB for live satellite.
Additional applications include:
- 5G Infrastructure: Base stations and antenna systems
- Automotive Radar: 24GHz and 77GHz radar sensors
- Aerospace & Defense: Mission-critical RF systems
- Wireless Communications: High-frequency power amplifiers
- Internet of Things (IoT): RFID and sensor applications
Design Considerations
Mixed Dielectric Capability
It is a property necessary for the construction of mixed dielectric multilayer PCB boards, allowing combination with standard FR4 materials for cost optimization.
Reliability Features
- Low Water Absorption: 0.05% water absorption
- Dimensional Stability: The low CTE of RO4350 laminates on the Z-axis provides reliable through hole quality even in severe thermal shock applications
- Lead-Free Compatible: Lead-Free Process Compatible: Y
Performance Comparison
When compared to traditional PTFE materials, Rogers 4350B offers:
- Simplified manufacturing processes
- Lower material costs
- Standard drilling and plating techniques
- No special via treatments required
- Excellent thermal management properties
Quality Certifications
- UL 94 V-0 flame retardant rating
- IPC-4103 compliance
- RoHS compliant
- Lead-free process compatible
Rogers 4350B represents the optimal balance of high-frequency performance, thermal management, and manufacturing ease, making it the preferred choice for engineers designing next-generation wireless and RF systems where reliability and performance are paramount.
