BICHENG ENTERPRISE LIMITED

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Single Layer Flexible FPC With 3M Tape for Keypad Membrane

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

Single Layer Flexible FPC With 3M Tape for Keypad Membrane

China Single Layer Flexible FPC With 3M Tape for Keypad Membrane Supplier
Single Layer Flexible FPC With 3M Tape for Keypad Membrane Supplier Single Layer Flexible FPC With 3M Tape for Keypad Membrane Supplier Single Layer Flexible FPC With 3M Tape for Keypad Membrane Supplier Single Layer Flexible FPC With 3M Tape for Keypad Membrane Supplier Single Layer Flexible FPC With 3M Tape for Keypad Membrane Supplier Single Layer Flexible FPC With 3M Tape for Keypad Membrane Supplier Single Layer Flexible FPC With 3M Tape for Keypad Membrane Supplier

Large Image :  Single Layer Flexible FPC With 3M Tape for Keypad Membrane

Product Details:

Place of Origin: China
Brand Name: Bicheng Enterprise
Certification: UL
Model Number: BIC-278-V2.78

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: 1 Board Material: Polyimide 25µm
Surface Cu Thickness: 1.0 Board Thickness: 0.10 Mm +/-10%
Surface Finish: Immersion Gold Solder Mask Color:: Yellow
Colour Of Component Legend: White Test: 100% Electrical Test Prior Shipment

Clarifications of FPC
According to the combination of base material and copper foil, flexible circuit board can be divided into two types: flexible board with adhesive and flexible board without adhesive. The price of non-adhesive flexible PCB is much higher than that of adhesive flexible PCB, but its flexibility, bonding force between copper foil and substrate and flatness of solder are also better than that of adhesive flexible PCB. So it is only used in the high demand situations, such as the: COF (CHIP ON FLEX, flexible board with bare chip, the high flatness of the pad) and so on. Because its price is high, most of the flexible PCBs used in the market are still adhesive flexible circuit board. Because the flexible circuit board is mainly used in the situation where bending is required, if the design or process is not reasonable, it is easy to produce micro-cracks, welding and other defects.
 
Economy of using FPC
If the circuit design is relatively simple, the total volume is small, and the space is suitable, the traditional internal connection is much cheaper. Flexible circuits are a good design option if the circuit is complex, processes many signals or has special electrical or mechanical requirements. When the size and performance of applications exceed the capacity of rigid circuits, flexible assembly is the most economical. A 12mil pad with a 5mil through hole and a flexible circuit with 3mil lines and spacing can be fabricated on a thin film. Therefore, it is more reliable to mount the chip directly on the film. There is no flame retardant that could be an ion source. These films may be protective and solidified at higher temperatures to obtain higher glass transition temperatures. Flexible materials are less costly than rigid materials because they are free of connectors.
 
 
FPC Case: Single Layer Flexible FPC With 3M Tape for Keypad Membrane
(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 keypad membrane. It’s a single layer FPC at 0.1mm thick. The base laminate is from ITEQ, It’s fabricated per IPC 6012 Class 2 using supplied Gerber data. Polyimide stiffener is applied on the inserting head.
 
Parameter and data sheet
Size of Flexible PCB 67.23 X 50.56mm
Number of Layers 1
Board Type Flexible PCB
Board Thickness 0.10mm
Board Material Polyimide 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 35 µm
   
Coverlay Colour Yellow
Number of Coverlay 2
Thickness of Coverlay 25 µm
Stiffener Material Polyimide stiffner / 3M tape
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
Diversified shipping method
Customer complaint rate: <1%
 
 
Application
Telephone receiver / earphone FPC, LCD TV soft board, Digital camera soft board, Tablet PC module soft board
 
 
 
About Us
Bicheng PCB, a unique printed circuit board supplier based in Shenzhen China serves worldwide customers since it’s born in 2003. At Bicheng, every batch of PCB goes through electrical test, AOI inspection, high voltage test, Impedance control test, micro-section, solder-ability test, thermal stress test, reliability test, insulation resistance test and ionic contamination test etc. Finally it is like a beautiful gift to be delivered to your hands.
 
Different plant scale to suit for your requirements
16000 square meter factory building
30000 square meter month capability
8000 types of PCB per month
ISO9001, ISO14001, TS16949, UL Certified
 
Variety of PCB technology to meet the market demands
HDI board
Heavy copper board
Hybrid material board
Blind via board
High frequency board
Metal core board
Immersion gold board
Multilayer board
Backplane board
Gold finger board
 
Comprehensive sales service presale, in sale and after sale.
Quick CADCAM checking and free PCB quotation
Free-of-charge PCB panelization
Prototype PCB capability
Volume Production capability
Quick turn-around samples
Free-of-charge PCB test
Solid carton packing
 
 
 
Single Layer Flexible FPC With 3M Tape for Keypad Membrane
 
Single Layer Flexible FPC With 3M Tape for Keypad Membrane
 
 

Contact Details
BICHENG ENTERPRISE LIMITED

Contact Person: Ms. Bonnie Shi

Tel: 86-755-27374946

Fax: 86-755-27374947

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