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Rogers CLTE-AT 5mil 2-Layer Immersion Gold PCB: High-Stability for RF and Automotive Radar Applications
Rogers CLTE-AT 5mil 2-Layer Immersion Gold PCB: High-Stability for RF and Automotive Radar Applications
Printed Circuit Boards are custom-made products; the images and specifications provided are for reference only.
1. Rogers CLTE-AT PCB Introduction
Rogers CLTE-AT 5mil 2-Layer PCB is based on CLTE-AT laminates, the commercial-grade offering in the CLTE™ product lineup. Leveraging the core technical building blocks of CLTE-XT laminates with targeted modifications for enhanced cost-effectiveness, CLTE-AT printed circuit board features a dielectric constant of 3.00 and a distinct thickness profile compared to its CLTE-XT counterpart.
Constructed with micro-dispersed ceramic polytetrafluoroethylene (PTFE) composites reinforced by woven fiberglass, Rogers CLTE-AT PCB substrate delivers exceptional dimensional stability—a critical attribute for complex multilayer circuit designs. Particularly in thin-substrate applications (such as 0.005” and 0.010” variants), this PCB stands out for its superior registration accuracy, setting it apart from standard commercial alternatives.
In terms of electrical performance, Rogers CLTE-AT PCB board boasts best-in-class Insertion Loss (S21) and Loss Tangent (0.0013) in the commercial marketplace, second only to the premium CLTE-XT laminates. Rogers CLTE Series materials are engineered to achieve reliable peel strength without relying on lossier, rougher copper foils commonly used in competing products to ensure copper adhesion—preserving signal integrity while maintaining structural reliability.
Designed to operate within a -55°C to 150°C temperature range, Rogers CLTE-AT high frequency PCB features low coefficient of thermal expansion (CTE) across X, Y, and Z axes, as well as very low thermal coefficient of dielectric constant (TCEr). These properties ensure exceptional electrical phase stability, dielectric constant (Dk) stability, and mechanical stability under extreme temperature fluctuations. Additionally, it inherits the competitive advantages of the CLTE product family, including low absorption of moisture and processing chemicals, and ease of processability. Its enhanced thermal conductivity further improves heat transfer efficiency compared to alternative materials, enabling superior power handling capabilities.
2. Features
- Base material: Rogers CLTE-AT micro-dispersed ceramic PTFE composite with woven fiberglass reinforcement
- Dielectric Constant (Dk): 3.00 ± 0.04
- Loss Tangent (Df): 0.0013
- Coefficient of Thermal Expansion (CTE): X-axis 8 ppm/˚C, Y-axis 8 ppm/˚C, Z-axis 20 ppm/˚C
- Very low Thermal Coefficient of Dielectric Constant (TCEr)
- Thermal Conductivity: 0.64 W/mk
- Flammability Rating: UL 94-V0
- Moisture Absorption: 0.03%
- Outgassing Properties: Total Mass Lost (TML) 0.04%; Collected Volatiles 0; Water Vapor Recovered 0
- Layer count: Double sided (2-layer rigid PCB)
- Finished board thickness: 0.2mm (5mil core)
- Surface finish: Immersion Gold
3. Benefits
- Superior signal integrity with best-in-class insertion loss in the commercial segment, ensuring reliable high-frequency transmission
- Enhanced mechanical robustness and dimensional stability compared to alternative materials, ideal for complex multilayer designs
- Exceptional electrical phase stability and Dk stability across a wide operating temperature range (-55°C to 150°C)
- High thermal conductivity improves heat transfer efficiency, enabling better power handling capabilities
- Tight Dk and thickness tolerances support precise impedance matching for RF and microwave applications
- Woven glass reinforcement ensures excellent thermal stability of Dk and Df, maintaining performance consistency
- Low moisture and chemical absorption minimizes performance degradation in harsh environments
- Easy processability reduces manufacturing complexity and production costs
- Reliable peel strength without lossy, rough copper foils, balancing structural and electrical performance
- Cost-effective commercial-grade solution with core performance advantages of premium CLTE laminates
4. PCB Construction Details
- Base material: Rogers CLTE-AT micro-dispersed ceramic PTFE composite
- Layer count: Double sided
- Board dimensions: 56mm x 99 mm = 1PCS, tolerance +/- 0.15mm
- Minimum Trace/Space: 4/6 mils
- Minimum Hole Size: 0.3mm
- Blind vias: None
- Finished board thickness: 0.2mm
- Finished Cu weight: 1oz (1.4 mils)
- Via plating thickness: 20 μm
- Surface finish: Immersion Gold
- Top Silkscreen: Black
- Bottom Silkscreen: No
- Top Solder Mask: Green
- Bottom Solder Mask: No
- Quality inspection: 100% Electrical test conducted prior to shipment
5. PCB Stackup
2-layer rigid PCB
- Copper_layer_1 - 35 μm (1oz)
- CLTE-AT substrate - 0.13 mm (5mil)
- Copper_layer_2 - 35 μm (1oz)
6. PCB Statistics
- Components: 25
- Total Pads: 39
- Thru Hole Pads: 13
- Top SMT Pads: 26
- Bottom SMT Pads: 0
- Vias: 24
- Nets: 2
7. Type of Artwork Supplied
Gerber RS-274-X
8. Quality Standard
IPC-Class-2
9. Availability
Worldwide
10. Typical Applications
- Automotive Radar & Adaptive Cruise Control Applications
- Microwave/RF Applications
- Phase/Temperature Sensitive Antennas
- Phase Sensitive Electronic Applications
- RF and Microwave Filters
Conclusion
Rogers CLTE-AT 5mil 2-Layer Immersion Gold PCB is a high-performance, cost-effective commercial-grade solution tailored for demanding RF, microwave, and automotive radar applications. Combining micro-dispersed ceramic PTFE composite technology with woven fiberglass reinforcement, it delivers superior dimensional stability, exceptional signal integrity, and reliable thermal-mechanical performance across a wide temperature range. Compliant with IPC-Class-2 quality standards and available worldwide, CLTE-AT Circuit Substrate balances premium performance with affordability, making it an ideal choice for engineers seeking stable, process-friendly, and high-reliability circuit solutions.
Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd is an established high frequency PCB supplier and exporter in Shenzhen, China, serving customers worldwide.
We are devoted to delivering high-frequency PCB products and solutions of the highest quality, along with customized service. Get in touch with us to start your project !
Visit https://www.bicheng-enterprise.com to learn more.