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High Frequency&High Speed PCB/



rogers-4835-pcb, We have made the Rogers 4835 base pcb with the red soldermask. we have Ro3003 base, Ro3006 base.Ro4350B. Ro4360, Ro4835… Higher quality rogers PCB boards.

High Frequency Circuit Materials

We buy these materials from an agent at Rogers Materials and then process and produce blank circuit boards. We don’t produce core materials. The following information is for reference only.

RO4003™ laminates are currently offered in various configurations utilizing both 1080 and 1674 glass fabric styles, with all configurations meeting the same laminate electrical performance specification. Specifically designed as a drop-in replacement for the RO4003C™ material, RO4350B™ laminates utilize RoHS compliant flame retardant technology for applications requiring UL 94V-0 certification. These materials conform to the requirements of IPC- 4103, slash sheet /10 for RO4003C and /11 for RO4350B materials.

PropertyTypical Value

RO4003C RO4350B

DirectionUnitsConditionTest Method
Dielectric Constant, er



3.38 ± 0.05


(2)3.48 ± 0.05





10 GHz/23°C


Clamped Stripline

(1) Dielectric Constant, er


3.553.66Z8 to 40 GHzDifferential Phase Length Method
Dissipation Factor tan, d0.0027




Z10 GHz/23°C

2.5 GHz/23°C

Thermal Coefficient of er+40+50Zppm/°C-50°C to 150°CIPC-TM-650
Volume Resistivity1.7 X 10101.2 X 1010 MΩ•cmCOND AIPC-TM-650
Surface Resistivity4.2 X 1095.7 X 109 COND AIPC-TM-650
Electrical Strength31.2




ZKV/mm (V/mil)0.51mm (0.020”)IPC-TM-650
Tensile Modulus19,650 (2,850)

19,450 (2,821)

16,767 (2,432)

14,153, (2,053)

X YMPa (ksi)RTASTM D638
Tensile Strength139 (20.2)

100 (14.5)

203 (29.5)

130 (18.9)

X YMPa (ksi)RTASTM D638
Flexural Strength276




 MPa (kpsi) IPC-TM-650 2.4.4
Dimensional Stability<0.3<0.5X,Ymm/m (mils/inch)after etch


IPC-TM-650 2.4.39A
Coefficient of Thermal Expansion11






X Y Z 



-55 to 288°C

IPC-TM-650 2.4.41
Tg>280>280 °C DSCAIPC-TM-650 2.4.24
Td425390 °C TGA ASTM D3850
Thermal Conductivity0.710.69 W/m/°K80°CASTM C518

Moisture Absorption







48 hrs immersion

0.060” sample Temperature 50°C



Density1.791.86 gm/cm323°CASTM D792
Copper Peel Strength1.05




 N/mm (pli)after solder float 1 oz. EDC FoilIPC-TM-650 2.4.8
FlammabilityN/A(3)V-0   UL 94
Lead-Free Process CompatibleYesYes   


High frequency circuit boards

High frequency PCB with Rogers material The increasing complexity of electronic components and switches continually requires faster signal flow rates, and thus higher transmission frequencies. Because of short pulse rise times in electronic components, it has also become necessary for high frequency (HF) technology to view conductor widths as an electronic component. Depending on various parameters, HF signals are reflected on circuit board, meaning that the impedance (dynamic resistance) varies with respect to the sending component. To prevent such capacitive effects, all parameters must be exactly specified, and implemented with the highest level of process control. Critical for the impedances in high frequency circuit boards are principally the conductor trace geometry, the layer buildup, and the dielectric constant (εr) of the materials used.

ALCANTA PCB provides you with know-how, all popular materials and qualified manufacturing processes – reliably even for complex requirements.



Materials used for HF circuit boards:

High-frequency boards, e.g. for wireless applications and data rates in the upper GHz range have special demands on the material used: Adapted permittivity Low attenuation for efficient signal transmission Homogeneous construction with low tolerances in insulation thickness and dielectric constant For many applications, it is sufficient to use FR4 material with an appropriate layer buildup. In addition, we process high-frequency materials with improved dielectric properties. These have a very low loss factor, a low dielectric constant, and are primarily temperature and frequency independent. Additional favourable properties are high glass transition temperature, an excellent thermal durability, and very low hydrophilic rate. We use (among others) Rogers or PTFE materials (for example, Teflon from DuPont) for impedance controlled high frequency circuit boards. Sandwich buildups for material combinations are also possible.


Impedance CheckThe impedance defined by the customer is tested by our CAM station engineers on manufacturability. Depending on the layer buildup, the PCB layout and the customer’s requested impedances a calculation model is chosen. The result is any required modification of the layer builduo and the necessary adjustments to the relevant conductor geometries. After the manufacture of high frequency circuit boards, the impedances are checked (with a precision of up to 5%), and the detailed results are recorded exactly in a test protocol.