(Printed Circuit Boards are custom-made products; the images and parameters provided are for reference only)
Brief Introduction of RO4350B
RO4350B hydrocarbon ceramic laminates are engineered to provide exceptional high-frequency performance and cost-effective circuit fabrication. As operational frequencies rise above 500 MHz, the range of laminates available to designers becomes significantly limited. RO4350B material offers the necessary properties for designing RF microwave circuits, matching networks, and controlled impedance transmission lines. Its low dielectric loss enables RO4350B to be utilized in numerous applications where traditional circuit board materials are insufficient due to higher operating frequencies.
The temperature coefficient of dielectric constant for RO4350B is among the lowest of all circuit board materials, ensuring that the dielectric constant remains stable across a wide frequency range. Additionally, the thermal coefficient of expansion (CTE) of RO4350B provides several advantages for PCB designers. The expansion coefficient of RO4350B closely matches that of copper, which ensures excellent dimensional stability—an essential property for constructing mixed dielectric multilayer boards. The low Z-axis CTE of RO4350B guarantees reliable plated through-hole quality, even under severe thermal shock conditions. With a Tg of over 280°C, RO4350B maintains stable expansion characteristics throughout the entire range of PCB processing temperatures.
PCB Specifications
High Frequency PCB Rogers 30mil 0.762mm RO4350B Double Sided RF Circuit Board for LNCs |
|
PCB SIZE |
93 x 92mm=1PCS |
BOARD TYPE |
|
Number of Layers |
Double sided PCB, 2 Layer PCB |
Surface Mount Components |
YES |
Through Hole Components |
YES |
LAYER STACKUP |
copper ------- 17.8um(0.5oz)+plate TOP layer |
RO4350B 30mil (0.762mm) |
|
copper ------- 17.8um(1oz)+plate BOT Layer |
|
TECHNOLOGY |
|
Minimum Trace and Space: |
11.97mil |
Minimum / Maximum Holes: |
0.3/2.8mm |
Number of Different Holes: |
2 |
Number of Drill Holes: |
195 |
Number of Milled Slots: |
5 |
Number of Internal Cutouts: |
0 |
Impedance Control |
No |
BOARD MATERIAL |
|
Glass Epoxy: |
RO4350B 30mil (0.762mm), Tg 288℃ |
Final foil external: |
1oz |
Final foil internal: |
0oz |
Final height of PCB: |
0.8mm ±0.1 |
PLATING AND COATING |
|
Surface Finish |
Immersion Gold (16.2%) 2 micoinch over 100 microinch nickel |
Solder Mask Apply To: |
NO |
Solder Mask Color: |
NO |
Solder Mask Type: |
N/A |
CONTOUR/CUTTING |
Routing, Fiducial Marks |
MARKING |
|
Side of Component Legend |
NO |
Colour of Component Legend |
NO |
Manufacturer Name or Logo: |
N/A |
VIA |
Plated Through Hole(PTH) |
FLAMIBILITY RATING |
UL 94-V0 Approval MIN. |
DIMENSION TOLERANCE |
|
Outline dimension: |
0.0059" (0.15mm) |
Board plating: |
0.0030" (0.076mm) |
Drill tolerance: |
0.002" (0.05mm) |
TEST |
100% Electrical Test prior shipment |
TYPE OF ARTWORK TO BE SUPPLIED |
email file, Gerber RS-274-X, PCBDOC etc |
SERVICE AREA |
Worldwide, Globally. |
Typical applications include:
Automotive Radar and Sensors
Cellular Base Station Antennas
Direct Broadcast Satellites
Low Noise Block
Power Amplifiers
RFID
Data Sheet for Rogers 4350 (RO4350B)
RO4350B Typical Value |
|||||
Property |
RO4350B |
Direction |
Units |
Condition |
Test Method |
Dielectric Constant,εProcess |
3.48±0.05 |
Z |
|
10 GHz/23℃ |
IPC-TM-650 2.5.5.5 Clamped Stripline |
Dielectric Constant,εDesign |
3.66 |
Z |
|
8 to 40 GHz |
Differential Phase Length Method |
Dissipation Factortan,δ |
0.0037 |
Z |
|
10 GHz/23℃ |
IPC-TM-650 2.5.5.5 |
Thermal Coefficient of ε |
+50 |
Z |
ppm/℃ |
-50℃to 150℃ |
IPC-TM-650 2.5.5.5 |
Volume Resistivity |
1.2 x 1010 |
|
MΩ.cm |
COND A |
IPC-TM-650 2.5.17.1 |
Surface Resistivity |
5.7 x109 |
|
MΩ |
COND A |
IPC-TM-650 2.5.17.1 |
Electrical Strength |
31.2(780) |
Z |
Kv/mm(v/mil) |
0.51mm(0.020") |
IPC-TM-650 2.5.6.2 |
Tensile Modulus |
16,767(2,432) |
X |
MPa(ksi) |
RT |
ASTM D 638 |
Tensile Strength |
203(29.5) |
X |
MPa(ksi) |
RT |
ASTM D 638 |
Flexural Strength |
255 |
|
MPa |
|
IPC-TM-650 2.4.4 |
Dimensional Stability |
<0.5 |
X,Y |
mm/m |
after etch+E2/150℃ |
IPC-TM-650 2.4.39A |
Coefficient of Thermal Expansion |
10 |
X |
ppm/℃ |
-55℃to288℃ |
IPC-TM-650 2.4.41 |
Tg |
>280 |
|
℃ TMA |
A |
IPC-TM-650 2.4.24.3 |
Td |
390 |
|
℃ TGA |
|
ASTM D 3850 |
Thermal Conductivity |
0.69 |
|
W/M/oK |
80℃ |
ASTM C518 |
Moisture Absorption |
0.06 |
|
% |
48hrs immersion 0.060" |
ASTM D 570 |
Density |
1.86 |
|
gm/cm3 |
23℃ |
ASTM D 792 |
Copper Peel Stength |
0.88 |
|
N/mm |
after solder float 1 oz. |
IPC-TM-650 2.4.8 |
Flammability |
(3)V-0 |
|
|
|
UL 94 |
Lead-free Process Compatible |
Yes |
|
|
|
|