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 |High Frequency PCB Bare
Board | 0.3mm Printed Circuit Board | Immersion
Gold PWB
(Printed circuit boards are custom-made products, the picture and parameters shown are
Just for reference)


General description
this is a type of double sided PCB built on 10mil RO4350B substrate with Tg 280C for the
Application of antenna. It's 0.3mm thick finished with white silkscreen over green solder
Mask and immersion gold are plated on pads. the base material is used from Rogers Corp.,
Board supplying 1 up per panel. They're fabricated per IPC 6012 Class 2 using supplied
Gerber data. Each 100 panels are packed for shipment. 

Features and benefits
the temperature coefficient of dielectric constant is among the lowest of any circuit
Board material, making it ideal for temperature sensitive applications;
Delamination of copper foil will not be caused by the change of cold and heat due to
the consistency with the thermal expansion coefficient of copper foil;
Reducing signal loss in high frequency application meets the development needs of
Communication technology;
Low in-plane expansion coefficient;
Excellent dimensional stability;
Products and Manufacturing are certified by authorized organizations;
UL, ISO14001, TS16949 certified;
on-time service;
More than 15 years of PCB experience;

Application
UHF radio, power divider, Relay Stations, base station antenna

Parameter and data sheet

PCB SIZE	160 x 70mm=1PCS
BOARD TYPE	Double sided PCB
Number of Layers	2 layers
Surface Mount Components	YES
through Hole Components	YES
LAYER STACKUP	Copper ------- 18um(0.5 oz)+plate TOP layer
	RO4350B 0.254mm
	Copper ------- 18um(0.5oz) + plate  BOT Layer
TECHNOLOGY
Minimum Trace and Space:	4 mil / 15 mil
Minimum / Maximum Holes:	0.254 mm / 4.0mm
Number of Different Holes:	4
Number of Drill Holes:	125
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:	1.0 oz
Final foil internal:	N/A
Final height of PCB:	0.3 mm 0.1
PLATING and COATING
Surface Finish	Immersion gold
Solder Mask Apply to:	TOP 12micron Minimum, Bottom is forbidden.
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 brand
Manufacturer Name or Logo:	Marked on the board in a conductor and leged FREE AREA
VIA	Plated through hole(PTH), minimum size 0.2mm. Via tented.
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 


LDI equipment
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