Brief Introduction
RO4350B High Frequency Circuit Material is glass reinforced hydrocarbon/ceramic laminates
(Not PTFE) designed for performance sensitive, high volume commercial applications.
Currently double sided and multilayer RO4350B PCB's are available at Bicheng company.
Double sided RO4350B PCB with thickness 10mil (0.254mm), 20mil (0.508mm), 30mil
(0.762mm) and 60mil (1.524mm) are the bestsellers. We provide prototype runs, small
Batches and volume production services.

Advantages
1) Excellent high frequency performance due to low dielectric tolerance and loss;
2) Excellent dimensional stability.
3) Low thermal coefficient of dielectric constant;
4) Low Z-Axis expansion;
5) Low in-plane expansion coefficient;
6) Stable electrical properties verus frequency;

Applications
1) Attenuator, Automatic gate induction;
2) LNB's for direct broadcast satellites;
3) Microstrip antenna, spread spectrum;
4) Microstrip and cellular base station antennas and power amplifiers;
5) RF identifications tags
6) Spread spectrum communications systems
7) Trunk amplifier, splitter module etc.



PCB Case: RO4350B 30 mil High Frequency PCB 1oz
Green Solder Mask
(PCB's are custom-made products, the picture and parameters shown are just for reference)



General description
this is a type of high frequency PCB built on RO4350B for the application of balanced
Amplifier. It's a 2 layer RF PCB board at 0.9 mm thick. It's immersion gold finish with
Green solder mask and white silkscreen from Taiyo. It's fabricated per IPC 6012 Class
2 using supplied Gerber data. Each 10 boards are packed for shipment. 


Features and benefits
Heat resistance, chemical resistance, impact strength and peeling strength are good.
the temperature coefficient of dielectric constant is among the lowest of any circuit
Board material, making it ideal for temperature sensitive applications.
RO4350B exhibits a stable dielectric constant over a broad frequency range. this
Makes it an ideal substrate for broadband applications.
Gold has high solderability, no stressing of circuit boards and less contamination
of PCB surface.
High voltage test, Impedance control test, micro-section, solder-ability test, 
UL, ISO certified PCB manufacturing factory.
More than 15 years' experience
Small quantity order is accepted
Fast and flexible to save the time of production from prototype to standard production


Application
Multiplexer, Directional coupler, Spread spectrum, Trunk amplifier


Parameter and data sheet

PCB SIZE	45 x 51mm=1PCS
BOARD TYPE	Microwave PCB
Number of Layers	Double sided PCB
Surface Mount Components	YES
through Hole Components	NO
LAYER STACKUP	Copper ------- 35um(1oz)+plate TOP layer
	RO4350B 30mil (0.762mm)
	Copper ------- 35um(1oz)+plate BOT Layer
TECHNOLOGY
Minimum Trace and Space:	5.4mil/6.3mil
Minimum / Maximum Holes:	0.45/4.1mm
Number of Different Holes:	7
Number of Drill Holes:	173
Number of Milled Slots:	1
Number of Internal Cutouts:	0
Impedance Control	NO
BOARD MATERIAL
Glass Epoxy:	RO4350B 30mil (0.762mm), Tg 288
Final foil external:	1.5oz
Final foil internal:	0 oz
Final height of PCB:	0.9 mm 0.1
PLATING and COATING
Surface Finish	Electroless nickel over Immersion Gold (ENIG)( 1 " over 100 " nickel)
Solder Mask Apply to:	Top and Bottom, 12micon Minimum.
Solder Mask Color:	Green, PSR-2000GT600D, Taiyo supplied.
Solder Mask Type:	LPSM
CONTOUR/CUTTING	Routing
MARKING
Side of Component Legend	TOP
Colour of Component Legend	White, IJR-4000 MW300, Taiyo Supplied.
Manufacturer Name or Logo:	Marked on the board in a conductor and leged FREE AREA
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	Gerber RS-274-X, PCBDOC etc
SERVICE AREA	Worldwide, Globally.

Variety of PCBs

Film Exposure machine