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Quick Details

Surface Finishing: Immersion Gold
Board Thickness: 0.15mm
Copper Thickness: 35 um
Base Material: Polyimide 25um
Brand Name: Bicheng Enterprise Limited
Min. Line Spacing: N/A
Min. Line Width: N/A
Min. Hole Size: N/A
Model Number: BIC-324-V324
Place of Origin: China (Mainland)
Coverlay Colour: Yellow
Color of Silkscreen: White

Specifications

Overview
A breakdown of a flexible circuit shows that it consists of 3 basic elements: copper foil,
Dielectric material and adhesive. most of the manufacturing processes, 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.


Bicheng Flexible Printed Circuit Capability 2019
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

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,
Telephone receiver / earphone FPC, contact belt of inkjet
Printer, Toy lamp strip,
LCD module, instrument panel, flexible flat cable, display backlight
Etc.



FPC
Flex PCB Board doublesided layer with immersion gold Made In China
FPC
Flex PCB Board doublesided layer with immersion gold Made In China
FPC
Flex PCB Board doublesided layer with immersion gold Made In China
Pattern plating
Flex PCB Board doublesided layer with immersion gold Made In China

PCB board drilling
Flex PCB Board doublesided layer with immersion gold Made In China

Flex PCB Board doublesided layer with immersion gold Made In China