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 PCB Built on 10mil Substrate
with Immersion Gold for Navigation System
(Printed circuit boards 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 10mil (0.254mm) RO4350B substrate with
Tg 280C for the application of Navigation System. It's double sided board at 0.30 mm
Thick, white silkscreen over green solder mask on bottom side and immersion gold is on
Pad for soldering. the base material is from Rogers Corp, entire board supplying 1 PCBs
Per panel. They're fabricated per IPC 6012 Class 2 using supplied Gerber data. Each 50
Panels are packed for shipment. 

Features and benefits
Reducing signal loss in high frequency application meets the development needs
of communication technology;
Excellent high frequency performance due to low dielectric tolerance and loss;
Stable electrical coefficient of dielectric constant;
Good oxidation resistance and good heat dissipation;
Long storage time, it can be stored for more than 1 year in vacuum bag;
Powerful PCB capabilities support your research and development, sales and marketing;
Make delivery on time. Higher than 98% on-time-delivery rate;
Professionalism and whole-hearted service;
Money-saving, Worry-saving and Labor-saving;
No MOQ, low cost for prototypes and small runs quantity;


Application
Balanced mixer,Multicoupler combiner,Tower-mounted booster,Automatic gate induction


Parameter and data sheet

PCB SIZE	40 x 30mm=1PCS
BOARD TYPE	Double sided PCB
Number of Layers	2 layers
Surface Mount Components	YES
through Hole Components	YES
LAYER STACKUP	Copper ------- 35um(1 oz)+plate TOP layer
	RO4350B 0.254mm
	Copper ------- 35um(1oz) + plate  BOT Layer
TECHNOLOGY
Minimum Trace and Space:	4 mil / 4 mil
Minimum / Maximum Holes:	n/a
Number of Different Holes:	n/a
Number of Drill Holes:	n/a
Number of Milled Slots:	0
Number of Internal Cutouts:	0
Impedance Control:	no
Number of Gold finger:	0
BOARD MATERIAL
Glass Epoxy:	RO4350B Tg280, er<3.48, Rogers Corp.
Final foil external:	1.5 oz
Final foil internal:	N/A
Final height of PCB:	0.3 mm 0.1mm
PLATING and COATING
Surface Finish	Immersion Gold
Solder Mask Apply to:	Bottom, 12micron Minimum
Solder Mask Color:	Green, PSR-2000GT600D, Taiyo Supplied.
Solder Mask Type:	LPSM
CONTOUR/CUTTING	Routing
MARKING
Side of Component Legend	Bottom
Colour of Component Legend	White, IJR-4000 MW300, Taiyo brand
Manufacturer Name or Logo:	Marked on the board in a conductor and leged FREE AREA
VIA	N/A
FLAMIBILITY RATING	UL 94-V0 Approval MIN.
DIMENSION TOLERANCE
Outline dimension:	0.0059"
Board plating:	0.0029"
Drill tolerance:	0.002"
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

Automatic silkscreen machine