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: Immersion Gold RF PCB Built on RO4350B
30mil With 2 Layer Copper
(PCB's are custom-made products, the picture and parameters shown are just for reference)
General description
This is a type of dual layer PCB built on 30mil RO4350B substrate with Tg 280°C for the application
of Antenna WiFi. It's 0.8 mm thick with white silkscreen (Taiyo) on green solder mask (Taiyo) and
immersion gold on pads. All vias are designed with open-solder-mask. The base material is from
Rogers supplying 2 designs 2 up PCBs per panel to save cost. They're fabricated per IPC 6012
Class 2 using supplied Gerber data. Each 50 panels are packed for shipment.
Features and benefits
Good high temperature and low temperature resistance.(-192ºC-260ºC)
RO4350B exhibits a stable dielectric constant over a broad frequency range. This makes it an
ideal substrate for broadband applications.
Stable electrical coefficient of dielectric constant.
Immersion gold has excellent surface planarity, particularly helpful for PCBs with BGA packages
or even CSP mounted components to reduce failure rate during assembly and soldering.
High voltage test, Impedance control test, micro-section, solder-ability test,
Right manufacturing instruction (MI),
Delivery on time: >98%
Eligible products rate of first production: >95%
Competitive price
Application
Splitter, Variocoupler, Microstrip antenna, 3G antenna, Relay Stations, RF Switches
Parameter and data sheet
| PCB SIZE |
35 x 77 mm=2 designs = 2PCS |
| 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 0.762mm |
| copper ------- 35um(1 oz)+plate BOT layer |
| TECHNOLOGY |
|
| Minimum Trace and Space: |
6 mil / 6 mil |
| Minimum / Maximum Holes: |
0.3 mm / 5.6 mm |
| Number of Different Holes: |
2 |
| Number of Drill Holes: |
182 |
| Number of Milled Slots: |
0 |
| Number of Internal Cutouts: |
0 |
| Impedance Control: |
no |
| Number of Gold finger: |
0 |
| BOARD MATERIAL |
|
| Glass Epoxy: |
RO4350B Tg288ºC, er<3.66, RogersCorp |
| Final foil external: |
1 oz |
| Final foil internal: |
1 oz |
| Final height of PCB: |
0.8 mm ±0.08 |
| PLATING AND COATING |
|
| Surface Finish |
Immersion gold (23.3% ) 0.05µm over 3µm nickel |
| Solder Mask Apply To: |
TOP and Bottom, 12micron Minimum |
| Solder Mask Color: |
Green, PSR-2000GT600D, Taiyo Supplied. |
| Solder Mask Type: |
LPSM |
| CONTOUR/CUTTING |
Routing, v-cut |
| MARKING |
|
| Side of Component Legend |
TOP and 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 |
Plated through hole(PTH), minimum size 0.3mm. |
| 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 |
email file, Gerber RS-274-X, PCBDOC etc |
| SERVICE AREA |
Worldwide, Globally. |
Why choose us?
1) Focus on your core competencies: We've deeply known it is full of fierce competition for
our customers in the market. You can focus on such important competencies as research
and development, sales and marketing based on our professional performance and skilled
services that exceeding your expectation.
2) Cutting-edge technology: it is rational for a small and medium-sized customer to hanker
after the latest equipment and manufacturing expertise for its PCBs. By the partnerships
with Bicheng PCB, you gain access to reach your expectation with our 3 factory bases with
over 26,000 square meters.
3) Save the cost of production: Production cost is one of the key points of our customers' product
competitiveness. Bicheng PCB have been striving to reduce its manufacturing cost from equipment
introduce, worker training and technology improvement to increase their profitability. Customers are
satisfied with our cost savings but without quality loss.
4) Avoid hassle: It's an upset matter when quality problem hassling you. Bicheng engineering design
prevents problem from occurring in pre-production. You will not get headache with Bicheng prototypes,
small orders and volume production. Our rate of customer complaint is less than 1% and will be solved
satisfactory.
5) Save time: Market requires the products updating quickly. Bicheng PCB always works fast and
flexible to save the time of production from prototype to standard production, quick turn-around or
scheduled deliveries.
6) An excellent team: Bicheng is trustworthy partner with passion, discipline, responsibility and
honesty. We have a team of experienced sales persons and skilled customer services. Do not
change your supplier. If change is must, Bicheng is the right one for you.
Variety of PCBs
PCB Pattern plating
Audited Supplier 
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