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)
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)
PCB Case: 4 Layer PCB on RO4003C and FR-4 Green Solder Mask
(Printed circuit boards are custom-made products, the picture and
parameters shown are just for reference)
This is a type of 4 layer hybrid PCB built on RO4003C and FR-4
combined for the application of balanced amplifier at 1.6 mm thick.
It's immersion gold finish with green solder mask and white
silkscreen. It's fabricated per IPC 6012 Class 2 using supplied
Gerber data. Each 10 boards are packed for shipment.
Features and benefits
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.
The temperature coefficient of dielectric constant is among the
lowest of any circuit board material, making it ideal for
temperature sensitive applications.
RO4003C exhibit a stable dielectric constant over a broad frequency
range. This makes it an ideal substrate for broadband applications.
SMT process is resistant to reflow soldering, resistant to rework
due to gold pads.
100% tests inclusive of electrical test and AOI inspection.
Comprehensive equipment management and maintenance and process
Small quantity order is accepted
Customer complaint rate: <1%
Multiplexer, Photocoupler, Frequency converter, Combiner
Parameter and data sheet
|PCB SIZE||81 x 61mm=1PCS|
|BOARD TYPE||Hybrid PCB|
|Number of Layers||Multilayer PCB, 4 Layer PCB|
|Surface Mount Components||YES|
|Through Hole Components||no|
|LAYER STACKUP||copper ------- 35um(1oz)+plate TOP layer|
|RO4003C 20mil Er 3.38|
|copper ------- 35um(1oz) MidLayer 1|
|copper ------- 35um(1oz) MidLayer 2|
|RO4003C 20mil Er 3.38|
|copper ------- 35um(1oz)+plate BOT Layer|
|Minimum Trace and Space:||5mil/5mil|
|Minimum / Maximum Holes:||0.3/3.5mm|
|Number of Different Holes:||4|
|Number of Drill Holes:||912|
|Number of Milled Slots:||0|
|Number of Internal Cutouts:||1|
|Glass Epoxy:||FR-4, ITEQ IT-180 TG>170, er<5.4. RO4003C 20mil|
|Final foil external:||1.5oz|
|Final foil internal:||1oz|
|Final height of PCB:||1.6mm ±0.16|
|PLATING AND COATING|
|Surface Finish||Immersion Gold (16.5%) 2 micoinch over 100 microinch nickel|
|Solder Mask Apply To:||Top and Bottom, 12micon Minimum.|
|Solder Mask Color:||Green, LP-4G G-05, Nanya supplied|
|Solder Mask Type:||LPSM|
|Side of Component Legend||TOP|
|Colour of Component Legend||White, S-380W, Taiyo Supplied.|
|Manufacturer Name or Logo:||Marked on the board in a conductor and leged FREE AREA|
|VIA||Plated Through Hole(PTH), via tented|
|FLAMIBILITY RATING||UL 94-V0 Approval MIN.|
|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.|
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.
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
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.
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.