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 Double Sided PCB 1oz
Copper Immersion Gold
(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 RO4350B 30 mil substrate for the application
of combiner. It's a 2 layer RF PCB board at 0.8 mm thick. It's immersion gold finish with
Green solder mask and white silkscreen. It's fabricated per IPC 6012 Class 2 using supplied
Gerber data. Each 10 boards are packed for shipment. 


Features and benefits
the characteristic of low dielectric loss makes the signal loss at a lower level, which
Makes the signal transmission of the whole equipment excellent.
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.
ENIG has long storage time (It can be stored for more than 1 year in vacuum bag)
Make delivery on time keeping 98% on-time-delivery rate.
Products and Manufacturing are certified by authorized organizations.
More than 15 years' experience
Fast and flexible to save the time of production from prototype to standard production
UL recognized and RoHS Directive-compliant


Application
LNA, WiFi amplifier, RF Switches, Trunk amplifier 


Parameter and data sheet

PCB SIZE	82 x 27mm=1PCS
BOARD TYPE	High frequency 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:	78mil/30mil
Minimum / Maximum Holes:	1.2/3.5mm
Number of Different Holes:	2
Number of Drill Holes:	49
Number of Milled Slots:	0
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:	0oz
Final height of PCB:	0.8mm 0.1
PLATING and COATING
Surface Finish	Electroless nickel over Immersion Gold (ENIG)( 1 " over 100 " nickel)
Solder Mask Apply to:	Top,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), Via tented
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	Email file, Gerber RS-274-X, PCBDOC etc
SERVICE AREA	Worldwide, Globally.

Variety of PCBs

LDI equipment