2-Layer 0.22mm Flexible Polyimide FPCPCB with 1.0mm FR-4 Stiffener ENIG
Introduction
Our newly shipped 2-Layer 0.22mm Flexible PCB with 1.0mm FR-4 Stiffener is a high-performance, ultra-thin printed circuit board designed for applications requiring flexibility, durability, and superior signal integrity. This FPC PCB combines aflexible polyimide core with a rigid FR-4 stiffener, making it ideal for dynamic and space-constrained environments. With ENIG (Electroless Nickel Immersion Gold) surface finish, 2oz copper layers, and IPC-Class-2 quality compliance, thisFlex polyimidePCB ensures reliability in demanding applications such as consumer electronics, automotive systems, and industrial automation.
Below, we provide a detailed breakdown of the PCB’s construction, stackup, statistics, and key features to help engineers and procurement teams make informed decisions.
PCB Construction Details
|
Parameter
|
Specification
|
|
Base Material
|
Flexible Polyimide
|
|
Layer Count
|
Double-Sided (2-Layer)
|
|
Board Dimensions
|
51mm x 35mm (±0.15mm)
|
|
Minimum Trace/Space
|
5/5 mils
|
|
Minimum Hole Size
|
0.4mm
|
|
Blind Vias
|
No
|
|
Flex Thickness (Core)
|
0.22mm
|
|
Thickness (Flex + PI Stiffener)
|
0.3mm
|
|
Thickness (Flex + FR4 Stiffener)
|
1.34mm
|
|
Finished Copper Weight
|
2oz (70µm) Outer Layers
|
|
Via Plating Thickness
|
20µm
|
|
Surface Finish
|
ENIG (Electroless Nickel Immersion Gold)
|
|
Top Silkscreen
|
White
|
|
Bottom Silkscreen
|
No
|
|
Top Solder Mask
|
Yellow Coverlay
|
|
Bottom Solder Mask
|
No
|
|
Electrical Testing
|
100% Tested Before Shipment
|
PCB Stackup
The stackup consists of 2-layer flexible PCB with FR4 Stiffener and PI Stiffener as follows:
|
Layer
|
Material
|
Thickness
|
|
Top Copper (Layer 1)
|
Copper
|
70µm (2oz)
|
|
Adhesive Polyimide Core
|
Polyimide
|
25µm (1mil)
|
|
Bottom Copper (Layer 2)
|
Copper
|
70µm (2oz)
|
|
FR-4 Stiffener
|
FR-4
|
1.0mm
|
PCB Statistics
|
Parameter
|
Value
|
|
Components
|
12
|
|
Total Pads
|
39
|
|
Through-Hole Pads
|
19
|
|
Top SMT Pads
|
20
|
|
Bottom SMT Pads
|
0
|
|
Vias
|
11
|
|
Nets
|
2
|
Features of Adhesive Polyimide
The adhesive polyimide used in this PCB offers the following features:
-
-Halogen-free, Flammability UL94 V-0.
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-Excellent flexibility, thermal resistance, dimensional and electrical properties.
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-Compliance with EU RoHS directive, free of Pb, Hg, Cd, Cr6+, PBB, PBDE, etc.
-
-Peel strength 90°: 1.0-1.5N/mm
-
-Dimensional stability: MD -0.06% - 0.015%; TD 0.05-0.06%
-
-Chemical resistance: 85%
-
-Moisture absorption: 1.37-1.46%
-
-Dielectric constant at 10 GHz: 3.31-3.34
-
-Dissipation factor at 10 GHz: 0.0188-0.0191
Typical Applications
This flexible PCB is widely used in:
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- Computer
-
- Mobile phone
-
- Digital camera
-
- VCR
-
- Automobile
-
- Office Automatic equipment
Conclusion
The 2-Layer 0.22mm Flexible PCB with FR-4 Stiffener is engineered for high flexibility, durability, and signal integrity, making it an excellent choice for dynamic and space-sensitive applications. With ENIG finish, 2oz copper, and strict IPC-Class-2 compliance, this Rigid-flex PCB ensures long-term reliability in demanding environments.
For global availability, quick-turn prototyping, or bulk orders, contact our sales team for competitive pricing and lead times.
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