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 Printed Circuit Board Built on 0.01"
(0.254mm) RO4350B + FR4
(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 0.36mm
FR-4 for the application of High Speed Servers. 

Basic specifications
Base material: RO4350B 0.254 mm + FR4 0.36 mm + PP 0.36 mm
Layer count: 4 layers
Type: Single individual board
Format: 108mm x 36mm = 1 type = 1 piece
Surface finish: Immersion gold
Copper weight: Outer layer 35 m/ Inner layer 35 m
Solder mask / Legend: Green / white
Final PCB height: 1.3 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
RO4350B exhibits a stable dielectric constant over a broad frequency range. this makes
It an ideal substrate for broadband applications;
SI performance improvement over the stack-UPS with all FR4 board;
Cost reduction over stack-UPS with all low loss material;
Reliability test, insulation resistance test and ionic contamination test;
Meeting your PCB needs from prototype to mass production;
UL, ISO14001, TS16949 certified;
Delivery on time: >98%  
Customer complaint rate: <1% 

Application
UHF radio, Interference filter,Indoor wall hanging antenna,Combiner

Parameter and data sheet