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: 3 Layer High Frequency PCB Built On 60mil
RO4350B + 6.6mil RO4350B With ENIG
(PCB's are custom-made products, the picture and parameters shown are just for reference)
General description
This is a type of 3-Layer high frequency PCB built on all low loss RO4350B material for the
application of Wireless Booster.
Basic specifications
Base material: RO4350B 60mil + RO4450B 4mil + RO4350B 6.6mil
Layer count: 3 layers
Type: Individual PCB
Format: 110mm x 110mm = 1 type = 1 piece
Surface finish: Immersion gold
Copper weight: Outer layer 35 μm/ Inner layer 35 μm
Solder mask / Legend: Green / white
Final PCB height: 1.8 mm
Standard: IPC 6012 Class 2
Packing: 25 pieces are packed for shipment.
Lead time: 10 working days
Shelf life: 6 months
Features and benefits
Excellent high frequency performance due to low dielectric tolerance and loss;
Reducing signal loss in high frequency application meets the development needs of
communication technology;
Tg > 280 ºC;
Professional and experienced engineers check your production files
Money-saving, Worry-saving and Labor-saving;
Hassle-free, one-to-one after-sales service;
16000 square meter workshop;
UL, ISO14001, TS16949 certified;
Application
Amplifier, Antenna combiner,Frequency converter, Trunk amplifier
Parameter and data sheet
| PCB SIZE |
110 x 110mm=1PCS |
| BOARD TYPE |
Multilayer PCB |
| Number of Layers |
3 layers |
| Surface Mount Components |
YES |
| Through Hole Components |
YES |
| LAYER STACKUP |
copper ------- 35µm(1 oz)+plate TOP layer |
| RO4350B 60mil (1.524mm) |
| copper ------- 35µm |
| Prepreg RO4450B 4mil (0.101mm) |
| copper ------- 0µm |
| RO4350B 6.6mil (0.167mm) |
| copper ------- 35µm(1oz) + plate BOT Layer |
| TECHNOLOGY |
|
| Minimum Trace and Space: |
4 mil / 4 mil |
| Minimum / Maximum Holes: |
0.4 mm / 3.5 mm |
| Number of Different Holes: |
12 |
| Number of Drill Holes: |
124 |
| Number of Milled Slots: |
0 |
| Number of Internal Cutouts: |
NO |
| Impedance Control: |
no |
| Number of Gold finger: |
0 |
| BOARD MATERIAL |
|
| Glass Epoxy: |
RO4350B Tg280ºC, er<3.48, Rogers Corp |
| Final foil external: |
1 oz |
| Final foil internal: |
1 oz |
| Final height of PCB: |
1.88 mm ±10% |
| PLATING AND COATING |
|
| Surface Finish |
Immersion gold |
| Solder Mask Apply To: |
TOP and Bottom, 15 micron Minimum |
| Solder Mask Color: |
Green,LP-4G/G-05, Nanya Supplied. |
| Solder Mask Type: |
LPSM |
| CONTOUR/CUTTING |
Routing |
| MARKING |
|
| Side of Component Legend |
Both top and bottom sides |
| Colour of Component Legend |
White, S-380W, 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. |
Quality Policy
Bicheng has developed series of management procedures and approaches to assure that PCBs
are in compliance with the customers' requirements, inclusive of selection of the vendors, work in
progress (WIP) inspection, outgoing delivery inspection and customer service etc.
Evaluation and Audit of Suppliers
Suppliers have to be evaluated by Bicheng. In addition, Bicheng will appraise and rank suppliers
every year to guarantee the materials supplied are meeting Bicheng's requirements. Furthermore,
Bicheng continuously develop suppliers and supervise them to improve their quality and environment
management basing on the systems of ISO9001 & ISO14001.
Contract Evaluation
Bicheng shall review and verify customer's requirements to make sure that we have the capability
to satisfy customers' requirements including specifications, delivery and other demands prior to
accepting an order.
Making, audit and control of manufacturing data
When customers' design data and specifications are provided to our market department, Bicheng
has to verify all the requirements. Then, convert the design data into manufacturing data by CAM.
Finally, a manufacturing instruction (MI) is generated according to the real manufacturing process
and technologies for manufacturing department as the basis for actual fabrication. MI must be
reviewed by independent engineers and QA engineers before issue.
Incoming Material Quality Control
All materials have to be inspected before warehousing. We established a series of strict inspection
procedure and instruction to control the incoming materials. Furthermore, various precise inspecting
instruments and apparatus guarantee the capability to judge the material good or not. We issue
material with first in first out principle, and give out "alarm" for the material that will reach the shelf
life to ensure the materials are used up before expiry.
Control of Production Process
Right manufacturing instruction (MI), comprehensive equipment management and maintenance
and process control, strict WIP inspection and monitoring as well as working instruction, all those
make the whole fabrication process totally controlled.
Final Control and Inspection
All PCBs have to be gone through the open and short test as well as visual inspection after passed
the specified physical tests. We own various advanced test equipment including customized, probe
flying test machines to guarantee that each PCB is 100% tested.
Product Delivery Audit
We set up a dedicated FQA department to inspect the PCB products according to the customer's
specifications and requirements by sampling. Qualified PCBs are going to be packed.
FQA also has to carry out a 100% audit of the warehouse packing and shipping products, including
product number, customer number, product quantity, shipping address and so on prior to shipment.
Customer Service
We sets up a professional customer service team to proactively communicate with customers and
timely deal with the customers' feedbacks. We highly focus on customers' needs and to understand
customers' demands, timely to adjust the policy of customer service and PCB product requirements.
Variety of PCBs
Automated film-sticking machine
Audited Supplier 
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