Brief Introduction
with the development of electronic communication technology, the communication frequency
Is becoming higher and higher, and the high frequency signal transmission, need to use low
Dielectric constant (Dk), low dielectric loss (Df) but expensive special materials. these materials
Have cyanate and high frequency materials such as polytetrafluoroethylene / ceramic based
Materials (PTFE/Ceramic), hydrocarbons / ceramic based materials (Hydra Carbon/Ceramic).
Usually these materials are expensive. 
Reducing the cost is an important means for customers to improve the competitiveness of
Products. Therefore, the customers adopt the laminated structure of mixed materials in the
Design of PCB structure, that is, the necessary signal layer uses high-frequency materials to
Meet the needs of signal transmission. Other line layers are made of conventional fiberglass
Epoxy FR-4, which we call a hybrid board.

Available high frequency material (Core)
RO4350BRO4003C
4mil (0.1mm)8mil (0.203mm)
6.6mil (0.168mm)12mil (0.3mm)
10mil (0.254mm)20mil (0.508mm)
13.3mil (0.338mm)32mil (0.813mm)
20mil (0.508mm)60mil (1.524mm)
30mil (0.762mm)
60mil (1.524mm)


PCB Case: 4 Layer Hybrid PCB Built on 0.01"
RO4350B + 0.04" FR-4 with ENIG
(PCB's are custom-made products, the picture and parameters shown are just for
Reference)

General description
this is a type of 4 Layer hybrid PCB mixed 0.254mm (10 mil) RO4350B and 1.044mm
(41mil) FR-4 for the application of High Frequency Amplifier. 

Basic specifications
Base material: RO4350B 0.254 mm + FR4 1.044 mm + PP 0.215 mm
Layer count: 4 layers
Type: Individual PCB
Format: 75mm x 75mm = 1 type = 1 piece
Surface finish: Immersion gold
Copper weight: Outer layer 35 m/ Inner layer 18 m
Solder mask / Legend: Green / white
Final PCB height: 1.6 mm
Standard: IPC 6012 Class 2
Packing: 25 pieces are packed for shipment. 
Lead time: 10 working days
Shelf life: 6 months

Features and benefits
Excellent high frequency performance due to low dielectric tolerance and loss;
Stable electrical coefficient of dielectric constant;
Excellent dimensional stability;
Quick CADCAM checking and free PCB quotation;
UL recognized and RoHS Directive-compliant;
Competitive price;
on-time service;
More than 15 years of PCB experience;

Application
Preamplifier, Radar sensors,Digital transmitter,Splitter module

Parameter and data sheet