Brief Introduction
RO4350B High Frequency Circuit Material is glass reinforced hydrocarbon/ceramic laminates
(Not PTFE) designed for performance sensitive, high volume commercial applications. Currently
Sided and multilayer RO4350B PCB's are available at Bicheng company. Double sided RO4350B 
with thickness 10mil (0.254mm), 20mil (0.508mm), 30mil (0.762mm) and 60mil (1.524mm)
Are best sellers. 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: 0.062inch High Frequency PCB Built on
RO4350B with HASL RoHS Compliance
(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 high frequency PCB built on RO4350B substrate with Tg 280C
for the application of mixer. It's 1.60 mm thick without solder mask; Black silkscreen is directly
on the substrate and HASL is on pads for soldering. the base material is used from Rogers
Corp., entire board supplying 1 up. They're fabricated per IPC 6012 Class 2 using supplied
Gerber data. Each 25 boards are packed for shipment. 

Features and benefits
the dielectric constant (DK) is low and stable, so the signal transmission is good without
Delay;
the characteristic of low dielectric loss makes the signal loss at a lower level, which makes
the signal transmission of the whole equipment excellent;
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;
Meeting your PCB needs from prototype to mass production;
Powerful PCB capabilities support your research and development, sales and marketing;
Professional and experienced engineers;
Competitive price;


Application
UHF radio, Power divider, LNB, Automatic gate induction


Parameter and data sheet

PCB SIZE	30 x 22mm=1PCS
BOARD TYPE	Double sided PCB
Number of Layers	2 layers
Surface Mount Components	YES
through Hole Components	NO
LAYER STACKUP	Copper ------- 35um(1 oz)+plate TOP layer
	RO4350B 1.524mm
	Copper ------- 35um(1oz) + plate  BOT Layer
TECHNOLOGY
Minimum Trace and Space:	40 mil / 20 mil
Minimum / Maximum Holes:	No holes
Number of Different Holes:	0
Number of Drill Holes:	0
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:	1.6 mm 10%
PLATING and COATING
Surface Finish	HASL Lead free
Solder Mask Apply to:	NO
Solder Mask Color:	N/A
Solder Mask Type:	N/A
CONTOUR/CUTTING	Routing
MARKING
Side of Component Legend	N/A
Colour of Component Legend	Black
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


X-ray target shooting