Low Profile R04350B High Frequency PCB Material Introduction RO4350B LoPro laminates use a proprietary Rogers' technology that allows reverse treated foil to bond to standard RO4350B dielectric. This results in a laminate with low conductor loss for improved insertion loss and signal integrity while maintaining all other desirable attributes of the standard RO4350B laminate system. Features and Benefits: R04350B PCB materials are reinforced hydrocarbon/ceramic laminates with very low profile reverse treated foil. 1. Lower insertion loss 2. Low PIM 3. Increased signal integrity 4. High circuit density Low Z-axis coefficient of thermal expansion 1. Multi-layer board capability 2. Design flexibility Lead-free process compatible 1. High temperature processing 2. Meets environmental concerns CAF resistant Some Typical Applications: Digital applications such as servers, routers, and high speed back planes Cellular base station antennas and power amplifiers LNB’s for direct broadcast satellites RF Identification Tags Our PCB Capability (RO4350B LoPro) PCB Material: Hydrocarbon Ceramic Laminates Designation: RO4350B LoPro Dielectric constant: 3.48±0.05 Layer count: Double Layer, Multilayer, Hybrid PCB Copper weight: 0.5oz (17 μm), 1oz (35μm), 2oz (70μm) Laminate thickness: 10.7mil (0.272mm), 14mil (0.356mm), 17.3mil (0.439mm), 20.7mil(0.526mm), 30.7mil (0.780mm), 60.7mil(1.542mm) PCB size: ≤400mm X 500mm Solder mask: Green, Black, Blue, Yellow, Red etc. Surface finish: Bare copper, HASL, ENIG, OSP, Immersion tin etc.. Typical Properties of RO4350B LoPro Property Typical Value Direction Units Condition Test Method Dielectric Constant, Process 3.48 ± 0.05 Z -- 10 GHz/23°C IPC-TM-650 2.5.5.5 Clamped Stripline Dielectric Constant, Design 3.55 Z -- 8 to 40 GHz Differential Phase Length Method Dissipation Factor tan, d 0.0037??? 0.0031 Z -- 10 GHz/23°C 2.5 GHz/23°C IPC-TM-650 2.5.5.5 Thermal Coeffifi cient of er 50 Z ppm/°C -50°C to 150°C 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 X 109 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 11473(1664) Y MPa(kpsi) RT ASTM D638 Tensile Strength 175(25.4) Y MPa(kpsi) RT ASTM D638 Flexural Strength 255(37) MPa(kpsi) IPC-TM-650 2.4.4 Dimensional Stability <0.5 X,Y mm/m(mils/inch) after etch +E2/150°C IPC-TM-650 2.4.39A Coeffifi cient of Thermal Expansion 14 X ppm/°C -55 to 288°C IPC-TM-650 2.1.41 16 Y 35 Z Tg >280 °C TMA A IPC-TM-650 2.4.24.3 Td 390 °C TGA ASTM D3850 Thermal Conductivity 0.62 W/m/°K 80°C ASTM C518 Moisture Absorption 0.06 % 48 hrs immersion 0.060” sample Temperature 50°C ASTM D570 Density 1.86 gm/cm3 23°C ASTM D792 Copper Peel Strength 0.88(5.0) N/mm(pli) after solder float 1 oz. TC Foil IPC-TM-650 2.4.8 Flammability V-0 UL 94 Lead-Free Process Compatible Yes 
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