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Multilayer Flexible Pcb
【Brief】:This is a type of 4 layer flexible printed circuit for the application of Wireless Intercom at 0.2mm
thick. The base laminate is from ITEQ, It's fabricated per IPC 6012 Class 2 using supplied Gerber
data.
【Series】:Flexible PCB
1. Features and benifits

A. Excellent flexibility
B. Reducing the volume
C. Weight reduction
D. Consistency of assembly
E. Increased reliability
F. Controllability of electrical parameter design
G. The end can be whole soldered
H. Material optionality
I.  Low cost
J. Continuity of processing
K. Small quantity, prototypes and production.
L. Engineering design prevents problems from occurring in pre production. 

2. Application

Touch screen, Consumer card reader soft board,Tablet keypad flex board

3. Parameter and data sheet
Size of Flexible PCB 70.58 X 120.37mm
Number of Layers 4
Board Type Flexible PCB
Board Thickness 0.20mm
Board Material Polyimide 25µm
Board Material Supplier ITEQ
Tg Value of Board Material 60ºC
 
PTH Cu thickness ≥20 µm
Inner Iayer Cu thicknes 35 µm
Surface Cu thickness 35 µm
   
Coverlay Colour Yellow coverlay / Green solder mask
Number of Coverlay 2
Thickness of Coverlay 25 µm
Stiffener Material no
Stiffener Thickness N/A
   
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 90ºC 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, -25ºC±125ºC, 1000 cycles.
Thermal Stress Pass, 300±5ºC,10 seconds, 3 cycles. 
No delamination, no blistering.
Function 100% Pass electrical test
Workmanship Compliance with IPC-A-600H & IPC-6013C Class 2
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