Brief Introduction
With the development of electronic communication technology, the communication frequency is
becoming higher and higher, and the high frequency signal transmission, need to use low dielectric
constant (Dk), low dielectric loss (Df) but expensive special materials. These materials have cyanate
and high frequency materials such as polytetrafluoroethylene / ceramic based materials
(PTFE/Ceramic), hydrocarbons / ceramic based materials (Hydra Carbon/Ceramic). Usually these
materials are expensive.
Reducing the cost is an important means for customers to improve the competitiveness of products.
Therefore, the customers adopt the laminated structure of mixed materials in the design of PCB
structure, that is, the necessary signal layer uses high-frequency materials to meet the needs of signal
transmission. Other line layers are made of conventional fiberglass epoxy FR-4, which we call a hybrid
board.
Available high frequency material (Core)
RO4350B RO4003C
4mil (0.1mm) 8mil (0.203mm)
6.6mil (0.168mm) 12mil (0.3mm)
10mil (0.254mm) 20mil (0.508mm)
13.3mil (0.338mm) 32mil (0.813mm)
20mil (0.508mm) 60mil (1.524mm)
30mil (0.762mm)
60mil (1.524mm)
PCB Case: Hybrid PCB Built On 20mil RO4350B and FR4
With Immersion Silver
(PCB's are custom-made products, the picture and parameters shown are just for reference)
General description
This is a type of mixed PCB built on 20mil RO4350B substrate and FR-4 combined for the application
of Wireless Range Extender. It's also an impedance controlled board. 50 ohm single end impedance
is controlled on top layer and bottom layer. It's 1.8 mm thick with 4 layers copper of 2oz weight, white
silkscreen on blue solder mask and immersion silver on pads. The base material is from Rogers
Corp supplying single up PCB per panel. They're fabricated per IPC 6012 Class 2 using supplied
Gerber data. Each 25 boards are packed for shipment.
Features and benefits
RO4350B exhibits a stable dielectric constant over a broad frequency range. This makes it an
ideal substrate for broadband applications;
Good high temperature and low temperature resistance(-192ºC-260ºC);
Superior corrosion resistance;
SI performance improvement over the stack-ups with all FR4 board;
8000 types of PCB per month;
Quick CADCAM checking and free PCB quotation;
Professional and experienced engineers;
Competitive price.
Application
Antenna, Antenna combiner, Balanced amplifier, 3G antenna
Parameter and data sheet
| PCB SIZE |
72 x 36.1 mm=1PCS |
| BOARD TYPE |
Hybrid PCB |
| Number of Layers |
Multilayer PCB, 4 layer PCB |
| Surface Mount Components |
YES |
| Through Hole Components |
NO |
| LAYER STACKUP |
copper ------- 52um(1.5 oz)+plate TOP layer |
| RO4350B 0.508mm (20 mil) |
| copper ------- 70um(2 oz) MidLayer 1 |
| FR-4 0.48 mm |
| copper ------- 70um(2 oz) MidLayer 2 |
| FR-4 0.48 mm |
| copper ------- 52um(1.5 oz)+plate BOT Layer |
| TECHNOLOGY |
|
| Minimum Trace and Space: |
5 mil / 6 mil |
| Minimum / Maximum Holes: |
0.4 /4.5 mm |
| Number of Different Holes: |
10 |
| Number of Drill Holes: |
32 |
| Number of Milled Slots: |
0 |
| Number of Internal Cutouts: |
0 |
| Impedance Control: |
YES. Top layer, single end impedance 41.34 mil 50 ohm; Bottom layer, Single end impedance 35.43 mil 50 ohm. |
| Number of Gold finger: |
0 |
| BOARD MATERIAL |
|
| Glass Epoxy: |
RO4350B 0.508 mm (20 mil) and FR-4 0.48 mm combined |
| Final foil external: |
2 oz |
| Final foil internal: |
2 oz |
| Final height of PCB: |
1.8mm ±0.18 |
| PLATING AND COATING |
|
| Surface Finish |
Immersion Silver |
| Solder Mask Apply To: |
Both sides |
| Solder Mask Color: |
Blue, KSM-6189BL04/KSM-19H01 |
| Solder Mask Type: |
LPI |
| CONTOUR/CUTTING |
Routing |
| MARKING |
|
| Side of Component Legend |
NO |
| Colour of Component Legend |
NO |
| Manufacturer Name or Logo: |
NO |
| VIA |
Plated through hole(PTH), Blind via L2-L4, L3-L4 |
| 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. |
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 Film exposure
Audited Supplier 
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