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Flexible PCB

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FPCBs are used widely in everyday technology and electronics in addition to high-end, complex completed components. Two of the most prominent examples of flexible circuit usage is in modern portable electronics, devices, hard disk drives and desktop printers.

Flexible circuits are also used extensively in other applications and industries including:

Communications

Consumer Electronics

Automotive

Medical

Industrial

Aerospace

Military

Transportation


No.

Item

Description

1

Layer

Flex board: 1-6Layers

Flex-Rigid Board: 2-8Layers

2

Material

CCL, PI, PET, PEN, FR-4

3

Final Thickness

Flex board: 0.002" - 0.1" (0.05-2.5mm)

Flex-rigid board: 0.0024" - 0.16" (0.06-4.0mm)

4

Surface Treatment

Lead-free: ENG Gold; OSP, Immersion silver, Immersion Tin

5

Min Trace

Inner: 0.5oz: 4/4mil Outer: 1/3oz-0.5oz: 4/4mil

6

Min Width /Clearance

1oz: 5/5mil 1oz: 5/5mil

2oz: 5/7mil 2oz: 5/7mil

 

7

 

Min Hole Ring

Inner: 0.5oz: 4mil Outer: 1/3oz-0.5oz: 4mil

1oz: 5mil 1oz: 5mil

2oz: 7mil 2oz: 7mil

8

Copper Thickness

1/3oz - 2oz

9

Max / Min Insulation Thickness

2mil/0.5mil (50μm/12.7μm)

10

Min Hole Size and Tolerance

Min hole: 8mil

Tolerance: PTH±3mil, NPTH±2mil

11

Min Slot

24mil x 35mil (0.6x0.9mm)

12

Solder Mask Alignment Tolerance

±3mil

13

Silkscreen Alignment Tolerance

±6mil

14

Silkscreen Line Width

5mil

15

Gold Plating

Nickel: 100μ" - 200μ" Gold: 1μ"-4μ"

16

Immersion Nickel / Gold

Nickel: 100μ" - 200μ" Gold: 1μ"-5μ"

17

Immersion Silver

Silver: 6μ" - 12μ"

18

OSP

Film: 8μ" - 20μ"

19

Test Voltage

Testing Fixture: 50-300V

 

 

20

 

 

Profile Tolerance of Punch

Accurate mould: ±2mil

Ordinary mould: ±4mil

Knife mould: ±8mil

Hand-Cut: ±15mil

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