Double Sided Flexible PCB Built on Polyimide with 90 Ohm Impedance Control

• Customization: Available
• Structure: Double-Sided FPC
• Material: Polyimide
• Model NO.: BIC-0495-V4.95
• Combination Mode: Adhesive Flexible Plate
• Application: Digital Products, Mobile Phone, Aviation and Aerospace
• Conductive Adhesive: Conductive Silver Paste
• Flame Retardant Properties: V0
• Processing Technology: Electrolytic Foil
• Base Material: Copper
• Insulation Materials: Epoxy Resin
• Final Height of PCB: 0.2mm +/-10%
• Final Foil External: 35 Um (1oz)
• Surface Finish: Immersion Gold
• Coverlay Colour: Yellow
• Color of Silkscreen: N/a
• RoHS Required: Yes
• Impedance Control: 90 Ohm Differential Impedance
• Function: 100% Pass Electrical Test
• Transport Package: Transparent Bags
• Specification: 120 x 95mm = 1 PCS
• Trademark: Bicheng Enterprise Limited
• Origin: China
• HS Code: 8534009000
• Production Capacity: 50000 Pieces Per Month

Product Description

1.1 General description

This is a type of flexible printed circuits built on polyimide substrate with connectors assembled
for the application of USB wireless. The base material is double layer adhesive RA Copper 35um
on polyimide 25um thick. It has 90 Ohm differential impedance with 4.7mil track and 7.9mil track
seperation. There're 2 thickness on the head stiffener, one for 0.3mm FR-4 and one for 0.8mm
FR-4 to support the connectors. Whole flex has no silkscreen, but with yellow coverlay and
immersion gold on pads. The base material is from Shengyi SF202, entire board supplying
single up. They're fabricated per IPC 6012 Class 2 using supplied Gerber data. Every 80
pieces are packed for shipment. 

1.2 Features and benefits 
   
A. Excellent flexibility;
B. Reducing the volume;
C. Weight reduction;
D. High solderability, no stressing of circuit boards and less contamination of PCB surface;
E. Quick and on-time delivery;
F. 16000 square meter workshop;
G. On-time service;
H. More than 15 years of PCB experience;

1.3 Application

Industrial control temperature controller, Automobile sensor flex board, LED display, Tablet
PC module, laser head FPC, mobile phone built-in antenna FPC, contact belt of inkjet printer

1.4 Parameter and data sheet

PCB Size:	120 x 95mm = 1 PCS
Number of Layers	2 layers
Board Type	Flexbile cirucit
Board Thickness	0.2mm +/-10%
Board Material	Double layer adhesive RA Copper 35um, Polyimide 25um
Board Material Supplier	Shengyi
Tg Value of Board Material	60ºC
PTH Cu thickness	20 um
Inner Iayer Cu thicknes	N/A
Surface Cu thickness	35 um (1oz)
Coverlay Colour	Yellow
Number of Coverlay	2
Thickness of Coverlay	25 um
Stiffener	0.3mm FR4+pure glue 0.8mm FR4+pure glue
Type of Silkscreen Ink	N/A
Supplier of Silkscreen	N/A
Color of Silkscreen	N/A
Number of Silkscreen	N/A
Minimum via (mm)	0.3
Minimum Trace (mil)	4.7
Minimum Gap(mil)	7.9
Impedance Control	90 Ohm differential impedance with 4.7mil track  and 7.9mil strak seperation
Surface Finish	Immersion Gold
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
Type of artwork to be supplied	email file, Gerber RS-274-X, PCBDOC etc
Service area	Worldwide, Globally.

Automatic silkscreen machine