F4BTME DielectricLayer High Frequency PCB DK 3.5 F4BTME 1.524mm Substrate
Introduction
The F4BTME series laminates are made by scientifically formulating fiberglass cloth, nano-ceramic filling, and polytetrafluoroethylene resin, followed by strict pressing processes. The series is based on the F4BM dielectric layer, with the addition of high dielectric and low loss nano-level ceramics, resulting in higher dielectric constant, improved heat resistance, lower thermal expansion coefficient, higher insulation resistance, and better thermal conductivity, while maintaining low loss characteristics.
F4BTM and F4BTME share the same dielectric layer but use different copper foils: F4BTM is paired with ED copper foil, suitable for applications without PIM requirements, while F4BTME is paired with reverse-treated (RTF) copper foil, offering excellent PIM performance, more precise line control, and lower conductor loss.
Features & Benefits
-DK range from 2.98 to3.5 is available
- Addition of ceramics enhances the performance.
-F4BTME exhibits excellent PIM performance,
- Comes in various thicknesses and sizes, offers cost savings
- Commercialization, large-scale production, and high cost-effectiveness.
- Radiation-resistant and low out-gassing properties
Models & Data Sheet
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Product Technical Parameters
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Product Models & Data Sheet
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Product Features
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Test Conditions
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Unit
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F4BTME298
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F4BTME300
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F4BTME320
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F4BTME350
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Dielectric Constant (Typical)
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10GHz
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/
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2.98
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3.0
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3.2
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3.5
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Dielectric Constant Tolerance
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/
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/
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±0.06
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±0.06
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±0.06
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±0.07
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Loss Tangent (Typical)
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10GHz
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/
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0.0018
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0.0018
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0.0020
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0.0025
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20GHz
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/
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0.0023
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0.0023
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0.0026
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0.0035
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Dielectric Constant Temperature Coefficient
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-55 º~150ºC
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PPM/℃
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-78
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-75
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-75
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-60
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Peel Strength
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1 OZ F4BTM
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N/mm
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>1.6
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>1.6
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>1.6
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>1.6
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1 OZ F4BTME
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N/mm
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>1.4
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>1.4
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>1.4
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>1.4
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Volume Resistivity
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Standard Condition
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MΩ.cm
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≥1×10^7
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≥1×10^7
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≥1×10^7
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≥1×10^7
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Surface Resistivity
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Standard Condition
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MΩ
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≥1×10^6
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≥1×10^6
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≥1×10^6
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≥1×10^6
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Electrical Strength (Z direction)
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5KW，500V/s
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KV/mm
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>26
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>30
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>32
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>32
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Breakdown Voltage (XY direction)
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5KW，500V/s
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KV
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>34
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>35
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>40
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>40
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Coefficientof Thermal Expansion
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XY direction
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-55 º~288ºC
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ppm/ºC
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15，16
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15，16
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13，15
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10，12
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Z direction
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-55 º~288ºC
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ppm/ºC
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78
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72
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58
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51
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Thermal Stress
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260℃, 10s，3 times
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No delamination
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No delamination
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No delamination
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No delamination
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Water Absorption
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20±2℃, 24 hours
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%
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≤0.05
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≤0.05
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≤0.05
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≤0.05
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Density
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Room Temperature
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g/cm3
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2.25
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2.25
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2.20
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2.20
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Long-Term Operating Temperature
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High-Low Temperature Chamber
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℃
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-55～+260
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-55～+260
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-55～+260
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-55～+260
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Thermal Conductivity
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Z direction
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W/(M.K)
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0.42
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0.42
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0.50
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0.54
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PIM
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Only applicable to F4BTME
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dBc
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≤-160
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≤-160
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≤-160
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≤-160
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Flammability
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/
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UL-94
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V-0
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V-0
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V-0
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V-0
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Material Composition
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/
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/
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PTFE, Fiberglass Cloth, nano-ceramics
F4BTM paired with ED copper foil, F4BTME paired with reverse-treated (RTF) copper foil.
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Our PCB Capability (F4BTME)
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PCB Capability (F4BTME)
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PCB Material:
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PTFE / glass fiber cloth / Nano-ceramic filler
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Designation (F4BTME )
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F4BTM
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DK (10GHz)
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DF (10 GHz)
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F4BTME298
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2.98±0.06
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0.0018
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F4BTME300
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3.0±0.06
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0.0018
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F4BTME320
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3.2±0.06
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0.0020
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F4BTME350
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3.5±0.07
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0.0025
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Layer count:
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Single Sided, Double Sided PCB, Multilayer PCB, Hybrid PCB
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Copper weight:
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0.5oz (17 µm), 1oz (35µm), 2oz (70µm)
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Dielectric thickness (or overall thickness)
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0.25mm, 0.508mm, 0.762mm, 0.8mm, 1.0mm, 1.016mm, 1.27mm, 1.524mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10.0mm, 12.0mm
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PCB size:
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≤400mm X 500mm
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Solder mask:
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Green, Black, Blue, Yellow, Red etc.
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Surface finish:
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Bare copper, HASL, ENIG, Immersion silver, Immersion tin, OSP, Pure gold, ENEPIG etc..
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F4BTME PCB and Applications
On the screen, you can see a DK 3.5 F4BTME PCB with a substrate thickness of 1.524mm. It has immersion gold surface finishes and 3oz copper tracks.
F4BTME series PCBs are employed in a wide range of applications, such as Antenna, Mobile Internet, Sensor Network, Radar, Millimeter Wave Radar, Aerospace, Satellite Navigation, Beidou, Missile-borne, Power Amplifier, and Radio Frequency.
Final（F4BTME series aluminum-based/copper-based substrates）
F4BTME series of laminates can provide aluminum-based or copper-based materials, where one side of the dielectric layer is covered with copper foil, and the other side of the dielectric layer is covered with either aluminum-based orcopper-based material. This arrangement serves the purpose of shielding or heat dissipation.
For examples, F4BTME350-CU represents F4BTME350 series with copper-based substrate.
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