Shenzhen Bicheng Electronics Technology Co., Ltd

High Frequency PCB | Metal Core PCB | Flexible PCB

RO4350B / 4003C | RT/duroid 5880/ 5870 | RF-35TC / TLY-5

90%  export | UL, ISO 9001, ISO14001 and IATF 16949 certified

 

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Flexible PCB | Impedance controlled Flex PCB | Polyimide Flex PCB

Customer Reviews
Kevin, Received and tested the boards - thanks very much. These are perfect, exactly what we needed. rgds Rich

—— Rich Rickett

Ruth, I got the PCB today, and they are just perfect. Please stay a little patience, my next order is coming soon. Kind regards from Hamburg Olaf

—— Olaf Kühnhold

Hi Natalie. It was perfect, I attach some pictures for your reference. And I send you next 2 projects to budget. Thanks a lot again

—— Seba T.

Kevin, Thanks, they were perfectly made, and work well. As promised, here are the links for my latest project, using the PCBs you manufactured for me:

—— Daniel F

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Flexible PCB

  • High Precision Flexible PCB suppliers
  • High Precision Flexible PCB suppliers
  • High Precision Flexible PCB suppliers
  • High Precision Flexible PCB suppliers
  • High Precision Flexible PCB suppliers

General Profile

A breakdown of a flexible circuit shows that it consists of 3 basic elements: copper foil, dielectric material and adhesive. Most of the manufacturing proceses, i.e. imaging transfer, plating and etching , are quite similar to those used when producing plated-through boards. However, there're differences due to the thin and floppy material used in flexible circuits.

 

Purpose of Flexible Circuits

1) To provide interconnections between printed circuit boards and other components.

2) To serve as three-dimensional substrates for the mounting of SMT components, e.g., in

photographic and video cameras.

3) To establish interconnections capable of withstanding dynamic flexing.

4) To form part of rigid-flex circuit boards.

 

Advantages

1) Flexibility

2) Volume decreases

3) Weight reduces

4) Consistency of SMD mounting

5) Reliability increases

6) Controllability of electrical design of parameters

7) Tin soldered overall on the FPC end

8) Material optional (PI, PET)

9) Low cost

10) Continuity of processing

 

Applications

Thin-film switch, capacitive touch screen / panel, keypad FPC, laser head FPC,

General purpose LED soft light strip, mobile phone built-in antenna FPC Touch screen,

Telephone receiver / earphone FPC, contact belt of inkjet printer, Toy lamp strip,

LCD module, instrument panel, flexible flat cable, display backlight etc.

 

Flex PCB Capability

No. Specifications Capabilities
1 Board Type Single layer, Doulbe layer, Multilayer, Rigid-Flex
2 Base Material PI, PET
3 Copper Weight 0.5oz, 1oz, 2oz
4 LED Maximum Size 250 x 5000mm
5 General Maximum Size 250 x 2000mm
6 Board Thickness 0.03mm-3.0mm
7 Thickness Tolerance ±0.03mm
8 Mininum Drill Hole 0.05mm
9 Maximum Drill Hole 6.5mm
10 Tolerance of Drill Hole ±0.025mm
11 Thickness of Hole Wall ≧ 8 um
12 Minimum Track/Gap of Single Layer Board 0.025/0.03mm
13 Minimum Track/Gap of Double Layer and Multilayer Board 0.03/0.040mm
14 Etching Tolerance ±0.02mm
15 Minimum Width of Silk Legend ≧ 0.125mm
16 Minimum Heigh of Silk Legend ≧0.75mm
17 Distance from Legend to Pad ≧0.15mm
18 Distance from Opening Solder Mask of Drill Coverlay to Track ≧0.03mm
19 Distance from Opening Solder Mask of Punching Coverlay to Track ≧0.03mm
20 Thickness of Immersion Nickel 100-300u"
21 Thickness of Immersion Gold 1-3u"
22 Thicnkess of Immersion Tin 150-400u"
23 Minimum Electrical Testing Pad 0.2mm
24 Minimum Tolerance of Outline(Normal Steel Mould Punch) ±0.1mm
25 Minimum Tolerance of Outline (Precision Steel Mould Punch) ±0.05mm
26 Mininum Radius of Bevel Angle (Outline) 0.2mm
27 Stiffner Material PI, FR-4, 3M Adhesive, PET, Steel Sheet
28 RoHs Yes
29 Solder Mask Colour Yellow, White, Black, Green

Flexible PCB Sample Introduction

Flexible PCB | Impedance controlled Flex PCB | Polyimide Flex PCB

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Large Image :  Flexible PCB | Impedance controlled Flex PCB | Polyimide Flex PCB

Product Details:

Place of Origin: China
Brand Name: Bicheng Enterprise
Certification: UL
Model Number: BIC-300-V3.00

Payment & Shipping Terms:

Minimum Order Quantity: 1
Price: USD 2.99-9.99 PER PIECE
Packaging Details: Vacuum
Delivery Time: 10 working days
Payment Terms: T/T, Western Union
Supply Ability: 45000 pieces per month
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Detailed Product Description
Number Of Layers: 2 Board Material: Polyimide (PI)
Surface Cu Thickness: 1.0 Board Thickness: 0.2 Mm +/-10%
Surface Finish: Immersion Gold Solder Mask Color:: Yellow
Colour Of Component Legend: N/A Test: 100% Electrical Test Prior Shipment

Structure of FPC
According to the number of layers of conductive copper foil, FPC can be divided into single layer circuit, double layer circuit, multi-layer circuit, double sided and so on.
 
Single-layer structure: the flexible circuit of this structure is the simplest structure of the flexible PCB. Usually the base material (dielectric substrates) + transparent rubber(adhesive) + copper foil is a set of purchased raw materials(semi-manufactures), the protective film and transparent glue are another kind of bought raw material. First, copper foil must be etched to obtain the required circuit, and the protective film should be drilled to reveal the corresponding pad. After cleaning, the two are combined by rolling. Then the exposed part of the pad electroplated gold or tin to protect. In this way, the big panel board will be ready. Generally also it’s stamped into the corresponding shape of the small circuit board. There is also no protective film directly on the copper foil, but printed resistance soldering coating, so that the cost will be lower, but the mechanical strength of the circuit board will become worse. Unless the strength requirement is not high and the price needs to be as low as possible, it is best to apply the protective film method.
 
Double layer structure: when the circuit is too complex to be wired, or copper foil is needed to shield the ground, it is necessary to choose a double layer or even a multilayer. The most typical difference between a multilayer and a single plate is the addition of a perforated structure to connect the layers of copper foil. The first process of transparent rubber + base material + copper foil is to make holes. Drill holes in the base material and copper foil first, clean and then plated with a certain thickness of copper. The subsequent fabrication process is almost the same as the single-layer circuit.
 
Double sided structure: both sides of the double sided FPC have pads, mainly used to connect other circuit boards. Although it and monolayer structure is similar, but the manufacturing process is very different. Its raw material is copper foil, protective film and transparent glue. The protective film should be drilled according to the position of the pad first, then the copper foil should be affixed, the pad and track lines should be etched and then the protective film of another drilled hole should be affixed.
 
 
 
FPC Case: Flexible PCB | Impedance controlled Flex PCB | Polyimide Flex PCB
(Flexible printed circuits are custom-made products, the picture and parameters shown are just for reference)
 
General description
This is a type of flexible PCB built on polyimide 76 micron substrate with 90 ohm impedance controlled on 0.15mm/0.3mm track and gap for the application of Wireless Broadband. It's standard 0.20 mm thick with yellow solder mask (coverlay) on both sides and immersion gold are on pads. FR-4 as stiffener is on the head and tail. The base material is used from Shengyi, entire board supplying 1 up flex per panel. They're fabricated per IPC 6012 Class 2 using supplied Gerber data. Each 25 pieces are packed for shipment.
 
Parameter and data sheet
PCB Size: 116 X 108mm = 1 PCS
Number of Layers 2 layers
Board Type Flexbile PCB
Board Thickness 0.2mm +/-10%
Stackup TOP FR-4 Steffener 0.8mm
PI coverlay 0.025mm
Copper top 0.035mm finish
Polyimide substrate 0.076mm
Copper top 0.035mm finish
PI coverlay 0.025mm
Board Material Supplier Shengyi
Tg Value of Board Material 60℃
 
PTH Cu thickness 20 um
Inner Iayer Cu thicknes N/A
Surface Cu thickness 35 um (1oz)
 
Coverlay Colour Yellow
Number of Coverlay 2
Thickness of Coverlay 25 um
Stiffener FR-4 0.8mm
 
Type of Silkscreen Ink N/A
Supplier of Silkscreen N/A
Color of Silkscreen N/A
Number of Silkscreen N/A
 
Minimum via (mm) 0.3
Minimum Trace (mil) 5.90
Minimum Gap(mil) 11.8
 
Surface Finish Immersion Gold
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
Type of artwork to be supplied email file, Gerber RS-274-X, PCBDOC etc
Service area Worldwide, Globally.
 
 
Features and benefits
Excellent flexibility;
Reducing the volume;
Weight reduction;
Consistency of assembly;
Increased reliability;
Powerful PCB capabilities support your research and development, sales and marketing;
Delivery on time with higher than 98% on-time-delivery rate;
Team with passion, discipline, responsibility and honesty;
No minimum order quantity. 1 piece is available;
 
Application
Flexible flat cable, Industrial control temperature controller soft board, medical equipment controller, automobile GPS navigation flex board, tablet keypad flex board, display backlight
 
 
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.
 
 
 
Flexible PCB | Impedance controlled Flex PCB | Polyimide Flex PCB
Flexible PCB | Impedance controlled Flex PCB | Polyimide Flex PCB

Contact Details
BICHENG ENTERPRISE LIMITED

Contact Person: Ms. Bonnie Shi

Tel: 86-755-27374946

Fax: 86-755-27374947

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