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: 4 Layer Mixed PCB On RO4350B 0.508 mm +
FR4 0.60 mm With 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 4 Layer PCB mixed 0.508mm (20 mil) RO4350B and 0.6mm FR-4 for the
application of Low Noise Amplifier. It's multiblock construction, so there're few different boards
inside. Keep out lines are outer contour of the milling cutter. When you have several different
prototype PCB jobs for trial market, this is a good economical way to help you save the production
cost that is merging these different PCBs together to be manufactured simultaneously on one
panel. Finished PCB products can be formed in panel with breakouts and can be individual boards
too.
Basic specifications
Base material: RO4350B 0.508 mm + FR4 0.6 mm + PP 0.306 mm
Layer count: 4 layers
Type: Mixed multiblock milled with bridges
Format: 125mm x 82mm = 1 type = 1 piece
Surface finish: Immersion gold
Copper weight: Outer layer 70 um/ Inner layer 35 um
Solder mask / Legend: green / white
Final PCB height: 1.6 mm
Standard: IPC 6012 Class 2
Packing: 20 panels are packed for shipment.
Lead time: 10 working days
Shelf life: 6 months
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;
RO4350B exhibits a stable dielectric constant over a broad frequency range. This makes
it an ideal substrate for broadband applications;
SI performance improvement over the stack-ups with all FR4 board;
Cost reduction over stack-ups with all low loss material;
AOI inspection;
More than 15 years of PCB experience;
ISO9001, ISO14001, TS16949, UL Certified;
Prototype to mass production capability;
Application
Mixer, Radar data acquisition converter, Spread spectrum, Duplexer
Parameter and data sheet
| PCB SIZE |
125mm x 82mm = 1 type = 1 piece |
| BOARD TYPE |
Multlayer PCB |
| Number of Layers |
4 Layers |
| Surface Mount Components |
YES |
| Through Hole Components |
YES |
| LAYER STACKUP |
Copper -----Top Layer 0.070mm (2 oz) |
| RO4350B 0.508 mm |
| Copper -----Plain 0.035 mm |
| Prepreg 2113 X 3, 0.306mm |
| Copper -----Plain 0.035 mm |
| FR-4 0.6mm |
| Copper ------- Bottom Layer 0.070mm (2oz) |
| TECHNOLOGY |
|
| Minimum Trace and Space: |
5.5 mil / 7.2 mil |
| Minimum / Maximum Holes: |
0.4 mm / 5.7 mm |
| Number of Different Holes: |
15 |
| Number of Drill Holes: |
172 |
| Number of Milled Slots: |
0 |
| Number of Internal Cutouts: |
NA |
| Impedance Control: |
N/A |
| Number of Gold finger: |
N/A |
| BOARD MATERIAL |
|
| Glass Epoxy: |
RO4350B Tg280ºC, er<3.48, Rogers Corp.; FR-4 IT158, ITEQ |
| Final foil external: |
2.0 oz |
| Final foil internal: |
1.0 oz |
| Final height of PCB: |
1.6 mm ±10% |
| PLATING AND COATING |
|
| Surface Finish |
Immersion Gold |
| Solder Mask Apply To: |
Both Top and Bottom sides |
| Solder Mask Color: |
Green |
| Solder Mask Type: |
LPI, Taiyo PSR-2000GT600D |
| CONTOUR/CUTTING |
Routing |
| MARKING |
|
| Side of Component Legend |
Top and bottom side |
| 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 0.4mm. |
| 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.
4) 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.
5) 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.
6) 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.
7) 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
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