Flexible Pcb fabrication

Our facilities are equipped to produce and manufacture all kinds of flexible printed circuits (FPC). We can also provide in house Flexible PCB assembly.

Production Technical details:

ItemTechnical Index 
Base MaterialPI 、FR4、 PET Cu 
Flexible InsulatorPI : 1/2mil(12.5um)to 5mil (127um)
Pet: 1/2mil(12.5um)to 5mil (127um)
Rolled Annealed (RA)
Electrodeposited (ED)
thickness: 1/3oz(12um) to 6 oz(200um)
AdhesiveAcrylic Adhesive: 1/2mil(12.5um) to 3mil (760um) 
Adhesiveness Materials 
Solder MaskPI PETCovered in layers PI and PET film 
Resist OilSolder Mask resist oil
thickness:12-18um Color(Green,Black,Yellow,White)
StiffenerPI PET thickness:0.075-0.3mm 
FR4 thickness: 0.2-3mm 
steel thickness :0.075-0.5mm 
Rigid -FlexiblePI+FR4 thickness: 3 to 125mil 
Surface FinishTinImmersion Tin 
GoldImmersion Gold thickness: 0.025-0.05um
Electrolytic Hard Gold thickness:>0.05um
SilverImmersion Silver 
OSPOrganic Solderability Preservative 
ShieldingBlack Electromagnetic Fil
Required to limit Electromagnetic and/or Electrostatic
Impedanceimpedance tolerance:+/-10% 
Layers1to 8 layers(Flexible,Rigid-Flexible) 
Product SizeMax Size:1420*400mm
Min Size:2.5*2.5mm
Outline toleranceHand Trim tolerance:+/-0.2mm 
Cutter Dies tolerance:+/-0.2mm 
Punch Dies tolerance:+/-0.075mm 
Laser Cut tolerance:+/-0.05mm 
Min hole dimensionDrilling(P.T.H)Machine Drilling: ¢0.15mm
Laser Drilling: ¢0.05mm
Tolerance of bronze coated hole±0.05mm 
ConductorWidth Min and toleranceMin width: 1.5mil Tolerance:+/-15% 
Spacing Min and ToleranceMin Spacing:1.5mil Tolerance:+/-15% 
Pad(Min Pad):0.25mm 
Stiffener HolesMin stiffener Holes:>0.2mm 
Peeling strength1.0KGf/CM , 0.5KGf/CM 
Type of oilApplicable to silk printing in multi colors(white,black,yellow,blue)

Made of flexible dielectric base material and main material is Polyimide CCL, which is pressed with cover film with mechanical protection and good dielectric properties. FPC is also classified by SS, DS and ML.  DS&ML get a conductivity by metalization.

Advantages of FPC: easily flex and fold, freely arrange by the lay-out to get the integrity of component assembly and conductor. It would be easy for the transportation, assembly, connection, etc. Therefore, FPC is widely used in aviation, military, mobile communication, IT product, Industrial equipment, etc.

1)    Application territory for flexible PCB (FPC)
1.    mobile phone, battery of mobile phone, communication equipment.
2.    IT product such as notebook, computer and attachment, PDA
3.    Video product such as CD-Rom, VCD, DVD
4.    Office automation machine such as printer, fax machine, and copying machine.
5.    Advanced camera and digital camera
6.    Industrial equipment such as medical machine, control-circuits, automobile appearance.
7.    Aerospace and aviation

2) Major production equipment
– CNC Drilling machine
– Optical target hole machine
– High energy exposing machine
– Etching machine
– Punching machine
– Small lamination machine
– Lamination machine
– Automatic silk-screen machine
– Electronic plating line
– Chemical immersion Au line

3) Major testing equipment
– Bending endurance tester
– Flexural endurance tester
– Projection magnify tester
– Peel strength test machine
– Microscope
– Fluorescent X-ray coating thickness gauge
– CCD magnify tester

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