Brief Introduction of FPC
Flexible Printed Circuit Board (FPC) is referred to as "soft
board". In the industry, FPC is a printed circuit board made of
flexible insulating substrate (mainly polyimide or polyester film),
which has many advantages that rigid printed circuit boards do not
have. For example, it can be freely bent, wound, folded. The volume
of electronic products can be greatly reduced by using FPC, which
is suitable for the development of electronic products in the
direction of high density, miniaturization and high reliability.
Therefore, FPC has been widely used in aerospace, military, mobile
communication, laptop, computer peripherals, PDA, digital camera
and other fields or products.
FPC also has the advantages of good heat dissipation,
solderability, easy mounting and low cost.
Flexible printed circuit board has one layer, two layers and
multilayer board. The base material is polyimide clad laminate.
This kind of material has high heat resistance and good dimensional
stability. It is the final product through pressing with the
coating film which has both mechanical protection and good
electrical insulation. The surface and inner conductors of
double-sided and multi-layer printed circuit boards are metallized
to realize the electrical connection of inner and outer layers.
The function of flexible circuit board can be divided into four
kinds, namely, lead line, printed circuit, connector and
multifunction integrated system, which cover computer, computer
peripheral auxiliary system, consumer household electrical
appliance and automobile, etc.
FPC Case: Flexible Printed Circuits | Double-sided flexible PCBs |
Immersion Gold FPC | Polyimide PCBs
(FPC’s are custom-made products, the picture and parameters shown
are just for reference)
General description
This is a type of flexible printed circuit for the application of
Bluetooth Headset. It’s a 2 layer FPC at 0.15mm thick. The base
laminate is from Shengyi, It’s fabricated per IPC 6012 Class 2
using supplied Gerber data. Polyimide stiffener is applied on the
inserting part.
Parameter and data sheet
| Size of Flexible PCB | 41.5X 112.3mm |
| Number of Layers | 2 |
| Board Type | Flexible PCB |
| Board Thickness | 0.15mm |
| Board Material | Polyimide (PI) 25µm |
| Board Material Supplier | ITEQ |
| Tg Value of Board Material | 60℃ |
| |
| PTH Cu thickness | ≥20 µm |
| Inner Iayer Cu thicknes | N/A |
| Surface Cu thickness | 70um |
| |
| Coverlay Colour | Yellow |
| Number of Coverlay | 2 |
| Thickness of Coverlay | 25 µm |
| Stiffener Material | Polyimide |
| Stiffener Thickness | 0.2mm |
| |
| Type of Silkscreen Ink | IJR-4000 MW300 |
| Supplier of Silkscreen | TAIYO |
| Color of Silkscreen | White |
| Number of Silkscreen | 1 |
| |
| Peeling test of Coverlay | No peelable |
| Legend Adhesion | 3M 90℃ No peeling after Min. 3 times test |
| |
| Surface Finish | Immersion Gold |
| Thickness of Nickle/Gold | Au: 0.03µm(Min.); Ni 2-4µm |
| RoHS Required | Yes |
| Famability | 94-V0 |
| |
| Thermal Shock Test | Pass, -25℃±125℃, 1000 cycles. |
| Thermal Stress | Pass, 300±5℃,10 seconds, 3 cycles. No delamination, no blistering. |
| Function | 100% Pass electrical test |
| Workmanship | Compliance with IPC-A-600H & IPC-6013C Class 2 |
Features and benefits
Excellent flexibility
Reducing the volume
Weight reduction
Consistency of assembly
Increased reliability
Controllability of electrical parameter design
The end can be whole soldered
Material optionality
Low cost
Continuity of processing
Great customer service
DDU Door to door shipment with competitive shipping cost.
Application
Keypad FPC, industrial control audio equipment, LCD TV soft board,
Digital camera soft board
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.
