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 Circuit (FPC) Built on 1oz
Polyimide Temperature Module
(Flexible printed circuits are custom-made products, the picture and parameters shown are
Just for reference)


General description
this is a type of 2 Layer flexible printed circuit (FPC) built on 1oz polyimide for the
Application of Temperature Module.

Basic specifications
Base material: Polyimide 12.5m + 0.1mm stiffener of stainless steel and 0.1mm
Polyimide
Layer count: 2 layers
Type: Individual FPC
Format: 93.0mm x 33mm = 1 type = 1 piece
Surface finish: Immersion gold
Copper weight: Outer layer 35m/ Inner layer 0 m
Solder mask / Legend: yellow coverlay / White
Final PCB height: 0.2 mm (inclusive of stiffener)
Standard: IPC 6012 Class 2
Packing: 100 pieces are packed for shipment. 
Lead time: 10 working days
Shelf life: 6 months

Features and benefits
Excellent flexibility;
Reducing the volume;
Weight reduction;
Good oxidation resistance and good heat dissipation;
RoHS materials;
Eligible products rate of first production: >95%  
on-time service;
More than 15 years of PCB experience;

Application
Laser head FPC, instrument panel, industrial control audio equipment, industrial
Control touch remote control soft board

Flexible Printed Circuit (FPC) 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

FPC 

FPC laser cut